United States Patent and Trademark Office OG Notices: 22 January 2002

                        Notice of Expiration of Patents
                     Due to Failure to Pay Maintenance Fee

   35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required
maintenance fee and any applicable surcharge are not paid in a patent
requiring such payment, the patent will expire at the end of the 4th, 8th
or 12th anniversary of the grant of the patent depending on the first
maintenance fee which was not paid.
   According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.

                  PATENTS WHICH EXPIRED ON November 21, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                            Issue
Number                         Number                             Date

4,881,275                      07/201,946                     11/21/89
4,881,283                      07/243,067                     11/21/89
4,881,284                      07/260,936                     11/21/89
4,881,288                      07/218,631                     11/21/89
4,881,291                      07/194,103                     11/21/89
4,881,294                      07/245,129                     11/21/89
4,881,303                      07/311,859                     11/21/89
4,881,308                      07/214,513                     11/21/89
4,881,319                      07/067,648                     11/21/89
4,881,321                      07/345,383                     11/21/89
4,881,329                      07/244,035                     11/21/89
4,881,339                      07/177,092                     11/21/89
4,881,346                      07/209,178                     11/21/89
4,881,350                      07/334,606                     11/21/89
4,881,353                      07/040,893                     11/21/89
4,881,355                      07/197,622                     11/21/89
4,881,356                      07/148,357                     11/21/89
4,881,358                      06/628,745                     11/21/89
4,881,360                      07/275,730                     11/21/89
4,881,367                      07/157,942                     11/21/89
4,881,369                      07/053,741                     11/21/89
4,881,377                      07/238,299                     11/21/89
4,881,384                      07/216,274                     11/21/89
4,881,387                      07/345,417                     11/21/89
4,881,392                      07/180,911                     11/21/89
4,881,393                      07/240,069                     11/21/89
4,881,412                      07/228,781                     11/21/89
4,881,414                      07/192,187                     11/21/89
4,881,420                      07/279,655                     11/21/89
4,881,426                      07/250,449                     11/21/89
4,881,430                      07/240,504                     11/21/89
4,881,432                      07/335,486                     11/21/89
4,881,434                      07/191,643                     11/21/89
4,881,448                      07/124,989                     11/21/89
4,881,463                      07/186,451                     11/21/89
4,881,475                      07/172,373                     11/21/89
4,881,479                      07/210,149                     11/21/89
4,881,495                      07/133,305                     11/21/89
4,881,502                      07/235,674                     11/21/89
4,881,503                      07/350,241                     11/21/89
4,881,516                      07/194,221                     11/21/89
4,881,517                      07/166,385                     11/21/89
4,881,533                      07/163,869                     11/21/89
4,881,547                      07/239,061                     11/21/89
4,881,550                      07/155,917                     11/21/89
4,881,563                      06/904,167                     11/21/89
4,881,564                      07/111,183                     11/21/89
4,881,567                      07/127,396                     11/21/89
4,881,571                      07/263,173                     11/21/89
4,881,572                      07/176,641                     11/21/89
4,881,577                      07/339,320                     11/21/89
4,881,579                      07/066,701                     11/21/89
4,881,580                      07/220,631                     11/21/89
4,881,595                      07/251,247                     11/21/89
4,881,599                      07/174,557                     11/21/89
4,881,602                      07/228,984                     11/21/89
4,881,612                      07/144,974                     11/21/89
4,881,618                      07/056,685                     11/21/89
4,881,620                      07/201,216                     11/21/89
4,881,626                      07/302,037                     11/21/89
4,881,627                      07/185,407                     11/21/89
4,881,632                      07/224,738                     11/21/89
4,881,635                      07/096,965                     11/21/89
4,881,640                      07/237,581                     11/21/89
4,881,651                      07/232,326                     11/21/89
4,881,655                      07/222,409                     11/21/89
4,881,659                      07/221,359                     11/21/89
4,881,664                      07/243,695                     11/21/89
4,881,667                      07/069,760                     11/21/89
4,881,668                      07/204,109                     11/21/89
4,881,673                      07/184,355                     11/21/89
4,881,675                      07/190,579                     11/21/89
4,881,676                      07/194,220                     11/21/89
4,881,679                      07/180,312                     11/21/89
4,881,685                      07/292,245                     11/21/89
4,881,686                      07/256,987                     11/21/89
4,881,687                      07/209,197                     11/21/89
4,881,692                      07/163,737                     11/21/89
4,881,697                      07/205,475                     11/21/89
4,881,722                      07/336,560                     11/21/89
4,881,744                      07/166,353                     11/21/89
4,881,748                      07/191,543                     11/21/89
4,881,759                      07/140,471                     11/21/89
4,881,760                      07/267,841                     11/21/89
4,881,778                      07/232,216                     11/21/89
4,881,779                      07/332,891                     11/21/89
4,881,783                      07/209,726                     11/21/89
4,881,795                      07/305,703                     11/21/89
4,881,801                      07/142,539                     11/21/89
4,881,810                      07/118,068                     11/21/89
4,881,819                      07/146,174                     11/21/89
4,881,822                      07/175,991                     11/21/89
4,881,824                      07/289,040                     11/21/89
4,881,825                      07/175,260                     11/21/89
4,881,826                      07/206,506                     11/21/89
4,881,842                      07/259,020                     11/21/89
4,881,844                      07/079,345                     11/21/89
4,881,845                      07/220,926                     11/21/89
4,881,846                      07/174,118                     11/21/89
4,881,848                      07/224,140                     11/21/89
4,881,851                      07/229,017                     11/21/89
4,881,854                      07/233,234                     11/21/89
4,881,860                      07/152,014                     11/21/89
4,881,862                      07/103,182                     11/21/89
4,881,872                      07/208,502                     11/21/89
4,881,885                      07/181,843                     11/21/89
4,881,886                      07/194,909                     11/21/89
4,881,887                      07/302,613                     11/21/89
4,881,896                      07/255,963                     11/21/89
4,881,913                      07/346,968                     11/21/89
4,881,923                      07/127,504                     11/21/89
4,881,938                      07/017,036                     11/21/89
4,881,952                      07/249,280                     11/21/89
4,881,954                      07/080,476                     11/21/89
4,881,961                      07/198,328                     11/21/89
4,881,967                      07/202,086                     11/21/89
4,881,970                      07/102,617                     11/21/89
4,881,980                      07/071,750                     11/21/89
4,881,982                      07/185,862                     11/21/89
4,881,992                      07/168,451                     11/21/89
4,881,994                      07/044,097                     11/21/89
4,882,005                      07/085,274                     11/21/89
4,882,007                      07/204,995                     11/21/89
4,882,009                      07/072,518                     11/21/89
4,882,019                      07/274,005                     11/21/89
4,882,023                      07/168,055                     11/21/89
4,882,038                      07/155,696                     11/21/89
4,882,039                      07/292,691                     11/21/89
4,882,040                      07/210,949                     11/21/89
4,882,042                      07/275,829                     11/21/89
4,882,043                      07/001,384                     11/21/89
4,882,046                      07/296,505                     11/21/89
4,882,049                      07/168,788                     11/21/89
4,882,053                      07/172,519                     11/21/89
4,882,056                      07/176,865                     11/21/89
4,882,058                      07/247,245                     11/21/89
4,882,059                      07/125,388                     11/21/89
4,882,067                      07/186,562                     11/21/89
4,882,074                      07/187,758                     11/21/89
4,882,081                      07/134,412                     11/21/89
4,882,093                      07/241,622                     11/21/89
4,882,096                      07/270,666                     11/21/89
4,882,101                      07/199,147                     11/21/89
4,882,108                      07/178,940                     11/21/89
4,882,111                      06/894,497                     11/21/89
4,882,119                      07/064,649                     11/21/89
4,882,121                      07/175,629                     11/21/89
4,882,126                      07/209,977                     11/21/89
4,882,128                      07/080,037                     11/21/89
4,882,146                      07/174,407                     11/21/89
4,882,147                      07/133,524                     11/21/89
4,882,165                      06/926,877                     11/21/89
4,882,176                      07/189,309                     11/21/89
4,882,179                      07/245,335                     11/21/89
4,882,186                      07/301,619                     11/21/89
4,882,189                      07/217,317                     11/21/89
4,882,194                      07/115,552                     11/21/89
4,882,203                      07/267,538                     11/21/89
4,882,212                      06/924,970                     11/21/89
4,882,214                      07/035,266                     11/21/89
4,882,215                      07/177,346                     11/21/89
4,882,222                      07/175,790                     11/21/89
4,882,223                      07/115,625                     11/21/89
4,882,227                      07/165,905                     11/21/89
4,882,248                      07/167,954                     11/21/89
4,882,264                      06/572,646                     11/21/89
4,882,270                      07/148,133                     11/21/89
4,882,272                      07/011,963                     11/21/89
4,882,276                      06/461,308                     11/21/89
4,882,291                      07/249,189                     11/21/89
4,882,297                      07/205,589                     11/21/89
4,882,300                      07/254,430                     11/21/89
4,882,305                      07/106,954                     11/21/89
4,882,306                      06/907,928                     11/21/89
4,882,318                      07/067,582                     11/21/89
4,882,321                      07/152,521                     11/21/89
4,882,322                      07/263,091                     11/21/89
4,882,336                      07/233,076                     11/21/89
4,882,337                      07/232,345                     11/21/89
4,882,339                      07/071,956                     11/21/89
4,882,361                      07/245,846                     11/21/89
4,882,368                      07/249,055                     11/21/89
4,882,374                      07/306,130                     11/21/89
4,882,382                      07/057,583                     11/21/89
4,882,389                      07/135,078                     11/21/89
4,882,396                      07/228,642                     11/21/89
4,882,408                      07/217,609                     11/21/89
4,882,409                      07/245,880                     11/21/89
4,882,419                      06/845,268                     11/21/89
4,882,428                      07/167,231                     11/21/89
4,882,430                      07/257,274                     11/21/89
4,882,440                      07/300,880                     11/21/89
4,882,448                      07/279,414                     11/21/89
4,882,457                      07/208,358                     11/21/89
4,882,464                      07/251,216                     11/21/89
4,882,465                      07/103,471                     11/21/89
4,882,492                      07/145,459                     11/21/89
4,882,503                      07/248,248                     11/21/89
4,882,505                      06/843,348                     11/21/89
4,882,509                      07/215,325                     11/21/89
4,882,513                      06/812,840                     11/21/89
4,882,525                      07/238,277                     11/21/89
4,882,527                      07/258,343                     11/21/89
4,882,535                      06/933,896                     11/21/89
4,882,540                      07/213,576                     11/21/89
4,882,541                      07/190,451                     11/21/89
4,882,557                      07/120,479                     11/21/89
4,882,585                      07/169,865                     11/21/89
4,882,590                      07/195,740                     11/21/89
4,882,592                      07/306,521                     11/21/89
4,882,600                      07/334,403                     11/21/89
4,882,609                      06/798,053                     11/21/89
4,882,610                      07/254,071                     11/21/89
4,882,613                      07/259,812                     11/21/89
4,882,617                      07/134,433                     11/21/89
4,882,618                      07/302,140                     11/21/89
4,882,628                      07/299,377                     11/21/89
4,882,630                      07/195,104                     11/21/89
4,882,637                      07/209,128                     11/21/89
4,882,643                      07/341,274                     11/21/89
4,882,656                      07/258,242                     11/21/89
4,882,666                      07/328,377                     11/21/89
4,882,672                      07/338,380                     11/21/89
4,882,677                      07/092,432                     11/21/89
4,882,679                      07/126,368                     11/21/89
4,882,701                      07/249,254                     11/21/89
4,882,707                      07/316,534                     11/21/89
4,882,716                      07/300,933                     11/21/89
4,882,718                      07/154,240                     11/21/89
4,882,725                      07/150,203                     11/21/89
4,882,726                      07/123,941                     11/21/89
4,882,727                      07/024,345                     11/21/89
4,882,729                      07/225,423                     11/21/89
4,882,730                      07/126,561                     11/21/89
4,882,733                      07/025,768                     11/21/89
4,882,736                      07/195,514                     11/21/89
4,882,740                      07/160,227                     11/21/89
4,882,748                      07/251,231                     11/21/89
4,882,758                      07/111,346                     11/21/89
4,882,761                      07/159,949                     11/21/89
4,882,770                      07/132,345                     11/21/89
4,882,777                      07/040,517                     11/21/89

                  PATENTS WHICH EXPIRED ON November 16, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                            Issue
Number                         Number                             Date

5,261,127                      07/784,382                     11/16/93
5,261,128                      08/033,942                     11/16/93
5,261,133                      07/906,156                     11/16/93
5,261,138                      07/804,742                     11/16/93
5,261,139                      07/980,361                     11/16/93
5,261,141                      07/938,880                     11/16/93
5,261,142                      07/799,947                     11/16/93
5,261,149                      07/973,707                     11/16/93
5,261,157                      07/643,637                     11/16/93
5,261,173                      08/000,291                     11/16/93
5,261,178                      08/009,386                     11/16/93
5,261,184                      07/713,792                     11/16/93
5,261,194                      07/739,875                     11/16/93
5,261,197                      07/807,252                     11/16/93
5,261,203                      07/785,039                     11/16/93
5,261,208                      07/958,945                     11/16/93
5,261,211                      07/721,456                     11/16/93
5,261,216                      07/723,937                     11/16/93
5,261,217                      07/986,755                     11/16/93
5,261,229                      07/923,666                     11/16/93
5,261,230                      07/979,191                     11/16/93
5,261,231                      07/861,443                     11/16/93
5,261,234                      07/817,569                     11/16/93
5,261,238                      07/802,407                     11/16/93
5,261,239                      07/840,812                     11/16/93
5,261,243                      07/951,606                     11/16/93
5,261,253                      08/003,485                     11/16/93
5,261,262                      07/844,440                     11/16/93
5,261,274                      07/528,921                     11/16/93
5,261,275                      07/758,582                     11/16/93
5,261,279                      07/840,328                     11/16/93
5,261,287                      07/880,669                     11/16/93
5,261,294                      07/415,975                     11/16/93
5,261,296                      07/913,147                     11/16/93
5,261,297                      07/958,773                     11/16/93
5,261,304                      07/976,565                     11/16/93
5,261,328                      07/715,368                     11/16/93
5,261,336                      07/732,411                     11/16/93
5,261,342                      07/919,623                     11/16/93
5,261,343                      07/866,009                     11/16/93
5,261,353                      07/863,254                     11/16/93
5,261,360                      07/923,845                     11/16/93
5,261,362                      07/985,100                     11/16/93
5,261,365                      08/032,622                     11/16/93
5,261,366                      08/028,004                     11/16/93
5,261,377                      07/940,884                     11/16/93
5,261,383                      07/963,987                     11/16/93
5,261,385                      07/858,958                     11/16/93
5,261,386                      07/880,031                     11/16/93
5,261,396                      07/846,869                     11/16/93
5,261,404                      07/726,705                     11/16/93
5,261,405                      07/934,299                     11/16/93
5,261,410                      07/651,449                     11/16/93
5,261,416                      07/912,141                     11/16/93
5,261,419                      07/795,006                     11/16/93
5,261,428                      07/682,062                     11/16/93
5,261,445                      08/005,785                     11/16/93
5,261,448                      07/871,708                     11/16/93
5,261,454                      07/982,960                     11/16/93
5,261,463                      07/834,332                     11/16/93
5,261,468                      07/951,781                     11/16/93
5,261,470                      07/710,664                     11/16/93
5,261,483                      07/821,433                     11/16/93
5,261,485                      07/747,988                     11/16/93
5,261,514                      07/878,407                     11/16/93
5,261,523                      07/991,827                     11/16/93
5,261,542                      07/933,378                     11/16/93
5,261,552                      07/669,851                     11/16/93
5,261,558                      07/993,972                     11/16/93
5,261,559                      07/836,396                     11/16/93
5,261,562                      07/820,544                     11/16/93
5,261,563                      07/940,679                     11/16/93
5,261,564                      07/797,452                     11/16/93
5,261,565                      07/897,211                     11/16/93
5,261,567                      07/997,159                     11/16/93
5,261,579                      07/950,401                     11/16/93
5,261,582                      07/969,017                     11/16/93
5,261,583                      07/880,276                     11/16/93
5,261,584                      07/862,104                     11/16/93
5,261,586                      07/858,234                     11/16/93
5,261,588                      07/886,900                     11/16/93
5,261,600                      07/984,309                     11/16/93
5,261,603                      07/919,054                     11/16/93
5,261,607                      07/957,855                     11/16/93
5,261,616                      07/836,895                     11/16/93
5,261,617                      07/906,578                     11/16/93
5,261,620                      07/837,734                     11/16/93
5,261,628                      07/832,454                     11/16/93
5,261,630                      07/802,376                     11/16/93
5,261,632                      07/770,651                     11/16/93
5,261,634                      07/954,709                     11/16/93
5,261,638                      08/028,161                     11/16/93
5,261,646                      07/762,433                     11/16/93
5,261,650                      07/774,771                     11/16/93
5,261,653                      07/948,174                     11/16/93
5,261,654                      07/926,509                     11/16/93
5,261,659                      08/011,238                     11/16/93
5,261,666                      08/029,731                     11/16/93
5,261,669                      08/027,410                     11/16/93
5,261,670                      07/860,696                     11/16/93
5,261,680                      07/837,026                     11/16/93
5,261,683                      08/005,633                     11/16/93
5,261,687                      07/817,143                     11/16/93
5,261,697                      07/854,809                     11/16/93
5,261,699                      07/959,331                     11/16/93
5,261,702                      07/832,223                     11/16/93
5,261,703                      07/997,330                     11/16/93
5,261,705                      07/858,116                     11/16/93
5,261,706                      07/504,543                     11/16/93
5,261,710                      07/928,376                     11/16/93
5,261,712                      07/935,959                     11/16/93
5,261,716                      07/934,196                     11/16/93
5,261,723                      07/920,007                     11/16/93
5,261,724                      07/976,537                     11/16/93
5,261,726                      07/783,672                     11/16/93
5,261,733                      07/889,392                     11/16/93
5,261,743                      08/053,596                     11/16/93
5,261,751                      07/920,453                     11/16/93
5,261,753                      08/059,183                     11/16/93
5,261,757                      07/770,509                     11/16/93
5,261,758                      07/918,747                     11/16/93
5,261,772                      07/775,521                     11/16/93
5,261,782                      07/693,792                     11/16/93
5,261,787                      07/822,067                     11/16/93
5,261,797                      07/830,657                     11/16/93
5,261,802                      07/942,031                     11/16/93
5,261,803                      07/698,959                     11/16/93
5,261,804                      07/736,297                     11/16/93
5,261,807                      07/840,194                     11/16/93
5,261,811                      07/737,239                     11/16/93
5,261,817                      07/944,248                     11/16/93
5,261,824                      07/819,816                     11/16/93
5,261,842                      08/009,057                     11/16/93
5,261,847                      07/784,691                     11/16/93
5,261,856                      07/990,676                     11/16/93
5,261,861                      07/894,674                     11/16/93
5,261,867                      08/051,747                     11/16/93
5,261,876                      07/899,676                     11/16/93
5,261,877                      07/734,381                     11/16/93
5,261,880                      07/850,463                     11/16/93
5,261,884                      07/875,895                     11/16/93
5,261,894                      07/850,442                     11/16/93
5,261,900                      07/782,309                     11/16/93
5,261,901                      07/695,449                     11/16/93
5,261,915                      07/869,769                     11/16/93
5,261,927                      07/994,378                     11/16/93
5,261,944                      07/898,036                     11/16/93
5,261,957                      07/861,134                     11/16/93
5,261,964                      07/862,223                     11/16/93
5,261,968                      07/819,281                     11/16/93
5,261,975                      07/903,328                     11/16/93
5,261,980                      07/824,000                     11/16/93
5,261,983                      07/901,657                     11/16/93
5,261,987                      07/894,679                     11/16/93
5,261,992                      07/474,004                     11/16/93
5,261,994                      08/022,429                     11/16/93
5,261,996                      07/646,104                     11/16/93
5,262,008                      07/623,954                     11/16/93
5,262,010                      07/846,477                     11/16/93
5,262,012                      07/584,649                     11/16/93
5,262,015                      08/024,277                     11/16/93
5,262,018                      07/743,953                     11/16/93
5,262,020                      07/994,457                     11/16/93
5,262,027                      07/674,811                     11/16/93
5,262,031                      07/834,174                     11/16/93
5,262,033                      07/842,763                     11/16/93
5,262,034                      07/966,002                     11/16/93
5,262,037                      07/887,615                     11/16/93
5,262,048                      07/945,950                     11/16/93
5,262,052                      07/848,300                     11/16/93
5,262,060                      07/845,567                     11/16/93
5,262,069                      07/831,180                     11/16/93
5,262,071                      08/020,280                     11/16/93
5,262,073                      07/928,675                     11/16/93
5,262,084                      07/819,659                     11/16/93
5,262,100                      07/806,002                     11/16/93
5,262,103                      07/795,509                     11/16/93
5,262,107                      07/860,258                     11/16/93
5,262,114                      07/932,280                     11/16/93
5,262,116                      07/878,674                     11/16/93
5,262,119                      07/874,486                     11/16/93
5,262,123                      07/710,661                     11/16/93
5,262,125                      07/961,517                     11/16/93
5,262,126                      07/848,212                     11/16/93
5,262,136                      07/778,871                     11/16/93
5,262,137                      07/766,111                     11/16/93
5,262,140                      07/878,772                     11/16/93
5,262,142                      07/922,837                     11/16/93
5,262,155                      08/028,707                     11/16/93
5,262,162                      07/755,814                     11/16/93
5,262,174                      07/732,492                     11/16/93
5,262,177                      07/007,230                     11/16/93
5,262,178                      07/668,372                     11/16/93
5,262,189                      07/955,677                     11/16/93
5,262,190                      08/017,368                     11/16/93
5,262,195                      07/958,286                     11/16/93
5,262,199                      07/870,570                     11/16/93
5,262,200                      07/859,144                     11/16/93
5,262,203                      07/895,294                     11/16/93
5,262,209                      07/947,576                     11/16/93
5,262,212                      07/880,745                     11/16/93
5,262,216                      07/925,093                     11/16/93
5,262,218                      07/908,216                     11/16/93
5,262,221                      07/773,955                     11/16/93
5,262,226                      07/664,548                     11/16/93
5,262,235                      07/783,656                     11/16/93
5,262,238                      07/987,809                     11/16/93
5,262,249                      07/813,463                     11/16/93
5,262,265                      08/002,101                     11/16/93
5,262,266                      07/807,921                     11/16/93
5,262,277                      07/824,088                     11/16/93
5,262,296                      07/445,624                     11/16/93
5,262,303                      07/595,451                     11/16/93
5,262,306                      07/503,829                     11/16/93
5,262,309                      07/668,517                     11/16/93
5,262,329                      08/057,212                     11/16/93
5,262,334                      07/769,529                     11/16/93
5,262,342                      07/771,891                     11/16/93
5,262,346                      07/991,222                     11/16/93
5,262,349                      07/931,368                     11/16/93
5,262,355                      08/031,502                     11/16/93
5,262,359                      07/611,088                     11/16/93
5,262,362                      07/901,649                     11/16/93
5,262,366                      07/602,851                     11/16/93
5,262,367                      07/981,704                     11/16/93
5,262,372                      07/830,794                     11/16/93
5,262,382                      07/953,407                     11/16/93
5,262,385                      07/734,698                     11/16/93
5,262,390                      07/935,601                     11/16/93
5,262,391                      07/635,628                     11/16/93
5,262,392                      07/729,668                     11/16/93
5,262,395                      07/850,475                     11/16/93
5,262,400                      07/882,809                     11/16/93
5,262,401                      07/875,314                     11/16/93
5,262,403                      07/550,827                     11/16/93
5,262,409                      07/776,065                     11/16/93
5,262,411                      07/635,441                     11/16/93
5,262,415                      07/850,817                     11/16/93
5,262,416                      07/949,903                     11/16/93
5,262,420                      07/886,300                     11/16/93
5,262,427                      07/268,940                     11/16/93
5,262,429                      07/959,843                     11/16/93
5,262,432                      07/878,557                     11/16/93
5,262,433                      07/924,453                     11/16/93
5,262,445                      07/913,374                     11/16/93
5,262,446                      08/036,855                     11/16/93
5,262,453                      07/730,217                     11/16/93
5,262,455                      07/845,135                     11/16/93
5,262,456                      07/972,081                     11/16/93
5,262,459                      07/890,107                     11/16/93
5,262,462                      07/902,399                     11/16/93
5,262,468                      07/705,711                     11/16/93
5,262,474                      07/787,709                     11/16/93
5,262,476                      07/850,335                     11/16/93
5,262,482                      07/728,853                     11/16/93
5,262,494                      07/813,221                     11/16/93
5,262,500                      07/781,616                     11/16/93
5,262,503                      07/705,585                     11/16/93
5,262,505                      07/918,293                     11/16/93
5,262,507                      07/811,276                     11/16/93
5,262,508                      07/930,134                     11/16/93
5,262,509                      07/890,734                     11/16/93
5,262,522                      07/797,556                     11/16/93
5,262,528                      07/662,198                     11/16/93
5,262,531                      07/373,467                     11/16/93
5,262,534                      07/892,641                     11/16/93
5,262,538                      07/945,076                     11/16/93
5,262,539                      07/682,820                     11/16/93
5,262,543                      07/892,975                     11/16/93
5,262,544                      08/059,929                     11/16/93
5,262,554                      07/998,323                     11/16/93
5,262,555                      08/030,900                     11/16/93
5,262,557                      07/961,829                     11/16/93
5,262,558                      07/932,845                     11/16/93
5,262,561                      07/850,910                     11/16/93
5,262,564                      07/969,874                     11/16/93
5,262,570                      08/002,904                     11/16/93
5,262,588                      08/049,688                     11/16/93
5,262,590                      07/874,713                     11/16/93
5,262,593                      07/845,059                     11/16/93
5,262,606                      07/037,434                     11/16/93
5,262,609                      07/911,823                     11/16/93
5,262,617                      07/568,730                     11/16/93
5,262,622                      07/852,276                     11/16/93
5,262,634                      07/950,245                     11/16/93
5,262,636                      07/877,746                     11/16/93
5,262,648                      08/016,097                     11/16/93
5,262,653                      07/777,563                     11/16/93
5,262,657                      07/825,365                     11/16/93
5,262,674                      07/866,951                     11/16/93
5,262,680                      07/726,456                     11/16/93
5,262,682                      07/797,930                     11/16/93
5,262,692                      07/867,834                     11/16/93
5,262,698                      07/785,679                     11/16/93
5,262,701                      07/834,026                     11/16/93
5,262,706                      07/895,736                     11/16/93
5,262,708                      07/707,589                     11/16/93
5,262,710                      07/966,629                     11/16/93
5,262,717                      07/685,666                     11/16/93
5,262,721                      07/877,136                     11/16/93
5,262,725                      07/811,560                     11/16/93
5,262,726                      07/707,744                     11/16/93
5,262,734                      07/905,777                     11/16/93
5,262,735                      07/915,251                     11/16/93
5,262,739                      07/969,503                     11/16/93
5,262,744                      07/992,794                     11/16/93
5,262,748                      07/995,576                     11/16/93
5,262,749                      07/851,838                     11/16/93
5,262,758                      07/762,446                     11/16/93
5,262,762                      07/907,883                     11/16/93
5,262,768                      07/770,454                     11/16/93
5,262,769                      07/895,633                     11/16/93
5,262,784                      07/898,654                     11/16/93
5,262,792                      07/758,881                     11/16/93
5,262,813                      08/015,526                     11/16/93
5,262,817                      07/771,205                     11/16/93
5,262,835                      07/777,311                     11/16/93
5,262,838                      07/761,856                     11/16/93
5,262,839                      07/852,549                     11/16/93
5,262,847                      07/963,874                     11/16/93
5,262,848                      07/783,367                     11/16/93
5,262,856                      07/893,454                     11/16/93
5,262,885                      07/510,069                     11/16/93
5,262,890                      07/644,371                     11/16/93
5,262,910                      07/689,555                     11/16/93
5,262,914                      07/779,221                     11/16/93
5,262,918                      07/722,837                     11/16/93
5,262,921                      07/775,979                     11/16/93
5,262,923                      07/718,604                     11/16/93
5,262,926                      07/660,496                     11/16/93
5,262,953                      07/691,001                     11/16/93
5,262,960                      07/680,694                     11/16/93
5,262,967                      07/729,566                     11/16/93
5,262,968                      07/904,315                     11/16/93
5,262,980                      07/869,407                     11/16/93
5,262,981                      07/724,035                     11/16/93
5,262,992                      07/622,066                     11/16/93
5,263,006                      07/867,703                     11/16/93
5,263,023                      07/699,341                     11/16/93
5,263,025                      07/800,248                     11/16/93
5,263,042                      07/730,464                     11/16/93
5,263,044                      07/922,731                     11/16/93
5,263,058                      07/839,091                     11/16/93
5,263,063                      07/856,259                     11/16/93
5,263,064                      07/857,489                     11/16/93
5,263,070                      07/766,077                     11/16/93
5,263,073                      07/811,305                     11/16/93
5,263,074                      07/869,506                     11/16/93
5,263,082                      07/757,265                     11/16/93
5,263,085                      07/974,751                     11/16/93
5,263,112                      07/970,193                     11/16/93
5,263,123                      07/666,923                     11/16/93
5,263,126                      07/942,976                     11/16/93
5,263,129                      07/587,100                     11/16/93
5,263,149                      07/657,705                     11/16/93
5,263,151                      07/470,214                     11/16/93
5,263,157                      07/480,437                     11/16/93
5,263,158                      07/480,440                     11/16/93
5,263,163                      07/963,009                     11/16/93
5,263,167                      07/796,144                     11/16/93
5,263,170                      07/532,169                     11/16/93
5,263,187                      07/663,955                     11/16/93
5,263,192                      07/863,892                     11/16/93
5,263,193                      07/708,542                     11/16/93
5,263,195                      07/676,385                     11/16/93

                  PATENTS WHICH EXPIRED ON November 18, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                            Issue
Number                         Number                             Date

5,687,420                      08/666,677                     11/18/97
5,687,421                      07/872,075                     11/18/97
5,687,424                      08/661,270                     11/18/97
5,687,427                      08/667,975                     11/18/97
5,687,432                      08/589,646                     11/18/97
5,687,433                      08/670,556                     11/18/97
5,687,437                      08/600,759                     11/18/97
5,687,442                      08/660,647                     11/18/97
5,687,443                      08/516,881                     11/18/97
5,687,454                      08/658,644                     11/18/97
5,687,456                      08/694,608                     11/18/97
5,687,459                      08/378,381                     11/18/97
5,687,460                      08/530,262                     11/18/97
5,687,464                      08/575,565                     11/18/97
5,687,482                      08/512,606                     11/18/97
5,687,484                      08/622,197                     11/18/97
5,687,490                      08/690,754                     11/18/97
5,687,491                      08/592,125                     11/18/97
5,687,494                      08/419,459                     11/18/97
5,687,496                      08/431,747                     11/18/97
5,687,499                      08/536,251                     11/18/97
5,687,501                      08/613,814                     11/18/97
5,687,505                      08/680,137                     11/18/97
5,687,512                      08/646,857                     11/18/97
5,687,520                      08/671,267                     11/18/97
5,687,522                      08/351,347                     11/18/97
5,687,529                      08/659,953                     11/18/97
5,687,531                      08/388,753                     11/18/97
5,687,536                      08/607,393                     11/18/97
5,687,539                      08/683,477                     11/18/97
5,687,573                      08/656,767                     11/18/97
5,687,579                      08/304,362                     11/18/97
5,687,586                      08/674,101                     11/18/97
5,687,588                      08/628,728                     11/18/97
5,687,617                      08/553,920                     11/18/97
5,687,619                      08/754,690                     11/18/97
5,687,621                      08/665,486                     11/18/97
5,687,622                      08/671,811                     11/18/97
5,687,628                      08/596,517                     11/18/97
5,687,649                      08/630,514                     11/18/97
5,687,652                      08/394,795                     11/18/97
5,687,653                      08/404,903                     11/18/97
5,687,657                      08/629,736                     11/18/97
5,687,660                      08/406,794                     11/18/97
5,687,661                      08/183,732                     11/18/97
5,687,665                      08/585,764                     11/18/97
5,687,666                      08/669,345                     11/18/97
5,687,667                      08/682,900                     11/18/97
5,687,670                      08/605,315                     11/18/97
5,687,671                      08/636,999                     11/18/97
5,687,672                      08/585,943                     11/18/97
5,687,674                      08/367,163                     11/18/97
5,687,675                      08/576,137                     11/18/97
5,687,681                      08/734,022                     11/18/97
5,687,705                      08/691,278                     11/18/97
5,687,706                      08/428,905                     11/18/97
5,687,721                      08/464,657                     11/18/97
5,687,725                      08/690,938                     11/18/97
5,687,743                      08/736,497                     11/18/97
5,687,744                      08/751,750                     11/18/97
5,687,747                      08/528,240                     11/18/97
5,687,749                      08/493,653                     11/18/97
5,687,750                      08/585,796                     11/18/97
5,687,758                      08/604,497                     11/18/97
5,687,759                      08/628,021                     11/18/97
5,687,764                      08/704,634                     11/18/97
5,687,765                      08/582,738                     11/18/97
5,687,769                      08/591,182                     11/18/97
5,687,770                      08/481,359                     11/18/97
5,687,772                      08/547,803                     11/18/97
5,687,774                      08/581,321                     11/18/97
5,687,786                      08/691,682                     11/18/97
5,687,802                      08/531,623                     11/18/97
5,687,805                      08/639,969                     11/18/97
5,687,813                      08/762,576                     11/18/97
5,687,820                      08/624,167                     11/18/97
5,687,822                      08/613,131                     11/18/97
5,687,833                      08/450,681                     11/18/97
5,687,835                      08/596,173                     11/18/97
5,687,839                      08/607,581                     11/18/97
5,687,841                      08/559,003                     11/18/97
5,687,844                      08/599,993                     11/18/97
5,687,857                      08/514,143                     11/18/97
5,687,873                      08/656,918                     11/18/97
5,687,876                      08/287,130                     11/18/97
5,687,879                      08/555,679                     11/18/97
5,687,880                      08/637,200                     11/18/97
5,687,883                      08/559,064                     11/18/97
5,687,888                      08/705,483                     11/18/97
5,687,892                      08/545,324                     11/18/97
5,687,893                      08/613,342                     11/18/97
5,687,896                      08/606,607                     11/18/97
5,687,902                      08/581,004                     11/18/97
5,687,913                      08/470,931                     11/18/97
5,687,917                      08/583,570                     11/18/97
5,687,921                      08/583,647                     11/18/97
5,687,927                      08/667,098                     11/18/97
5,687,937                      08/578,948                     11/18/97
5,687,940                      08/589,402                     11/18/97
5,687,941                      08/546,911                     11/18/97
5,687,943                      08/588,717                     11/18/97
5,687,945                      08/680,818                     11/18/97
5,687,946                      08/418,796                     11/18/97
5,687,951                      08/514,395                     11/18/97
5,687,955                      08/600,201                     11/18/97
5,687,959                      08/636,357                     11/18/97
5,687,960                      08/631,425                     11/18/97
5,687,962                      08/474,361                     11/18/97
5,687,966                      08/698,962                     11/18/97
5,687,968                      08/561,765                     11/18/97
5,687,969                      08/650,839                     11/18/97
5,687,970                      08/678,466                     11/18/97
5,687,977                      08/597,465                     11/18/97
5,687,978                      08/531,847                     11/18/97
5,687,979                      08/552,707                     11/18/97
5,687,981                      08/444,364                     11/18/97
5,687,983                      08/526,775                     11/18/97
5,687,985                      08/334,086                     11/18/97
5,687,995                      08/644,566                     11/18/97
5,687,998                      08/650,774                     11/18/97
5,688,000                      08/592,326                     11/18/97
5,688,001                      08/451,053                     11/18/97
5,688,013                      08/446,633                     11/18/97
5,688,017                      08/488,519                     11/18/97
5,688,018                      08/594,013                     11/18/97
5,688,019                      08/430,527                     11/18/97
5,688,021                      08/586,459                     11/18/97
5,688,025                      08/763,746                     11/18/97
5,688,026                      08/593,245                     11/18/97
5,688,028                      08/607,765                     11/18/97
5,688,031                      08/435,052                     11/18/97
5,688,032                      08/473,686                     11/18/97
5,688,048                      08/675,941                     11/18/97
5,688,051                      08/416,890                     11/18/97
5,688,052                      08/648,682                     11/18/97
5,688,057                      08/539,846                     11/18/97
5,688,062                      08/789,924                     11/18/97
5,688,073                      08/568,838                     11/18/97
5,688,074                      08/495,478                     11/18/97
5,688,075                      08/534,686                     11/18/97
5,688,076                      08/707,858                     11/18/97
5,688,077                      08/297,658                     11/18/97
5,688,079                      08/630,448                     11/18/97
5,688,082                      08/588,744                     11/18/97
5,688,085                      08/492,387                     11/18/97
5,688,087                      08/556,027                     11/18/97
5,688,089                      08/404,437                     11/18/97
5,688,095                      08/620,760                     11/18/97
5,688,099                      08/574,160                     11/18/97
5,688,100                      08/578,576                     11/18/97
5,688,102                      08/684,151                     11/18/97
5,688,103                      08/522,378                     11/18/97
5,688,113                      08/754,832                     11/18/97
5,688,153                      08/633,439                     11/18/97
5,688,154                      08/438,651                     11/18/97
5,688,159                      08/358,823                     11/18/97
5,688,161                      08/506,290                     11/18/97
5,688,162                      08/586,683                     11/18/97
5,688,167                      08/662,499                     11/18/97
5,688,177                      08/568,414                     11/18/97
5,688,184                      08/680,861                     11/18/97
5,688,195                      08/670,243                     11/18/97
5,688,197                      08/694,662                     11/18/97
5,688,200                      08/693,647                     11/18/97
5,688,210                      08/595,622                     11/18/97
5,688,211                      08/556,309                     11/18/97
5,688,219                      08/608,777                     11/18/97
5,688,225                      08/509,051                     11/18/97
5,688,236                      08/649,804                     11/18/97
5,688,238                      08/613,386                     11/18/97
5,688,243                      08/518,561                     11/18/97
5,688,244                      08/403,791                     11/18/97
5,688,247                      08/356,385                     11/18/97
5,688,248                      08/641,826                     11/18/97
5,688,250                      08/482,856                     11/18/97
5,688,253                      08/456,051                     11/18/97
5,688,286                      08/760,232                     11/18/97
5,688,294                      08/740,854                     11/18/97
5,688,296                      08/425,001                     11/18/97
5,688,299                      08/514,992                     11/18/97
5,688,310                      08/373,235                     11/18/97
5,688,313                      08/759,087                     11/18/97
5,688,316                      08/618,562                     11/18/97
5,688,321                      08/636,348                     11/18/97
5,688,323                      08/555,683                     11/18/97
5,688,334                      08/632,689                     11/18/97
5,688,337                      08/565,428                     11/18/97
5,688,340                      08/517,816                     11/18/97
5,688,348                      08/779,542                     11/18/97
5,688,349                      08/503,313                     11/18/97
5,688,368                      08/535,363                     11/18/97
5,688,374                      08/540,207                     11/18/97
5,688,376                      08/585,101                     11/18/97
5,688,400                      08/612,332                     11/18/97
5,688,405                      08/613,771                     11/18/97
5,688,412                      08/657,798                     11/18/97
5,688,421                      08/605,686                     11/18/97
5,688,425                      08/583,091                     11/18/97
5,688,452                      08/688,691                     11/18/97
5,688,454                      08/731,482                     11/18/97
5,688,466                      08/620,946                     11/18/97
5,688,474                      08/379,304                     11/18/97
5,688,503                      08/441,358                     11/18/97
5,688,511                      08/343,682                     11/18/97
5,688,521                      08/535,073                     11/18/97
5,688,527                      08/590,446                     11/18/97
5,688,536                      08/696,433                     11/18/97
5,688,539                      08/647,847                     11/18/97
5,688,547                      07/725,033                     11/18/97
5,688,549                      08/600,664                     11/18/97
5,688,558                      08/623,630                     11/18/97
5,688,569                      08/658,513                     11/18/97
5,688,575                      08/734,208                     11/18/97
5,688,580                      08/602,991                     11/18/97
5,688,586                      08/667,265                     11/18/97
5,688,590                      08/517,541                     11/18/97
5,688,598                      08/672,280                     11/18/97
5,688,604                      08/505,472                     11/18/97
5,688,608                      08/459,475                     11/18/97
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