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 February 14, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                           Serial                      Issue
Number                           Number                       Date

4,803,753                      07/110,130                   02/14/89
4,803,769                      07/109,867                   02/14/89
4,803,803                      06/855,757                   02/14/89
4,803,808                      07/058,992                   02/14/89
4,803,810                      07/118,989                   02/14/89
4,803,812                      07/123,709                   02/14/89
4,803,816                      07/093,805                   02/14/89
4,803,821                      07/150,175                   02/14/89
4,803,831                      07/072,790                   02/14/89
4,803,833                      07/166,408                   02/14/89
4,803,852                      07/019,762                   02/14/89
4,803,854                      07/129,894                   02/14/89
4,803,855                      07/083,183                   02/14/89
4,803,878                      07/005,214                   02/14/89
4,803,887                      07/000,286                   02/14/89
4,803,902                      07/118,795                   02/14/89
4,803,904                      07/199,295                   02/14/89
4,803,905                      07/111,740                   02/14/89
4,803,921                      07/008,557                   02/14/89
4,803,930                      06/876,091                   02/14/89
4,803,932                      07/129,892                   02/14/89
4,803,936                      07/116,732                   02/14/89
4,803,940                      06/917,681                   02/14/89
4,803,945                      07/102,376                   02/14/89
4,803,955                      07/036,905                   02/14/89
4,803,962                      07/142,330                   02/14/89
4,803,963                      07/179,964                   02/14/89
4,803,968                      07/169,468                   02/14/89
4,803,976                      07/183,490                   02/14/89
4,803,981                      06/715,826                   02/14/89
4,803,989                      07/152,994                   02/14/89
4,803,994                      07/084,228                   02/14/89
4,803,995                      07/063,910                   02/14/89
4,804,021                      07/124,863                   02/14/89
4,804,023                      07/051,328                   02/14/89
4,804,031                      07/038,282                   02/14/89
4,804,035                      07/042,063                   02/14/89
4,804,044                      07/040,219                   02/14/89
4,804,045                      06/927,576                   02/14/89
4,804,048                      06/463,998                   02/14/89
4,804,051                      07/100,912                   02/14/89
4,804,061                      07/145,955                   02/14/89
4,804,071                      07/181,781                   02/14/89
4,804,074                      07/019,192                   02/14/89
4,804,075                      07/067,880                   02/14/89
4,804,077                      07/055,561                   02/14/89
4,804,080                      06/731,620                   02/14/89
4,804,088                      07/166,667                   02/14/89
4,804,090                      07/090,332                   02/14/89
4,804,117                      06/918,564                   02/14/89
4,804,118                      06/930,410                   02/14/89
4,804,129                      07/011,349                   02/14/89
4,804,133                      07/085,703                   02/14/89
4,804,134                      07/087,659                   02/14/89
4,804,148                      07/157,982                   02/14/89
4,804,150                      07/079,262                   02/14/89
4,804,151                      07/137,398                   02/14/89
4,804,158                      07/077,581                   02/14/89
4,804,161                      06/654,536                   02/14/89
4,804,162                      07/067,550                   02/14/89
4,804,170                      07/013,408                   02/14/89
4,804,179                      06/916,511                   02/14/89
4,804,186                      07/127,660                   02/14/89
4,804,203                      07/126,068                   02/14/89
4,804,206                      07/107,975                   02/14/89
4,804,207                      07/145,832                   02/14/89
4,804,210                      07/061,375                   02/14/89
4,804,226                      07/074,919                   02/14/89
4,804,228                      07/104,900                   02/14/89
4,804,233                      06/916,519                   02/14/89
4,804,241                      07/153,545                   02/14/89
4,804,242                      06/841,810                   02/14/89
4,804,244                      06/841,877                   02/14/89
4,804,257                      07/083,281                   02/14/89
4,804,264                      07/075,821                   02/14/89
4,804,270                      07/100,258                   02/14/89
4,804,292                      07/173,240                   02/14/89
4,804,294                      07/058,172                   02/14/89
4,804,297                      07/105,855                   02/14/89
4,804,300                      07/006,878                   02/14/89
4,804,301                      07/135,853                   02/14/89
4,804,303                      07/047,314                   02/14/89
4,804,308                      07/005,055                   02/14/89
4,804,314                      06/904,447                   02/14/89
4,804,315                      07/080,369                   02/14/89
4,804,318                      07/002,989                   02/14/89
4,804,319                      07/175,628                   02/14/89
4,804,339                      07/101,046                   02/14/89
4,804,343                      07/179,772                   02/14/89
4,804,344                      07/074,135                   02/14/89
4,804,355                      07/121,905                   02/14/89
4,804,383                      06/857,871                   02/14/89
4,804,385                      07/004,496                   02/14/89
4,804,386                      07/151,610                   02/14/89
4,804,389                      07/095,484                   02/14/89
4,804,399                      06/818,891                   02/14/89
4,804,409                      07/117,151                   02/14/89
4,804,412                      07/043,535                   02/14/89
4,804,418                      06/909,747                   02/14/89
4,804,422                      06/877,601                   02/14/89
4,804,444                      07/104,524                   02/14/89
4,804,446                      06/909,433                   02/14/89
4,804,457                      07/076,507                   02/14/89
4,804,472                      07/139,487                   02/14/89
4,804,489                      07/114,902                   02/14/89
4,804,498                      06/938,798                   02/14/89
4,804,500                      06/841,149                   02/14/89
4,804,502                      07/145,867                   02/14/89
4,804,505                      07/052,683                   02/14/89
4,804,515                      06/666,696                   02/14/89
4,804,516                      07/052,627                   02/14/89
4,804,521                      06/928,337                   02/14/89
4,804,522                      06/406,252                   02/14/89
4,804,524                      07/170,056                   02/14/89
4,804,527                      06/875,274                   02/14/89
4,804,533                      07/044,198                   02/14/89
4,804,534                      07/078,501                   02/14/89
4,804,541                      07/084,390                   02/14/89
4,804,547                      07/136,304                   02/14/89
4,804,551                      07/045,517                   02/14/89
4,804,552                      07/094,304                   02/14/89
4,804,563                      07/014,009                   02/14/89
4,804,587                      07/020,015                   02/14/89
4,804,597                      07/120,619                   02/14/89
4,804,606                      07/092,304                   02/14/89
4,804,608                      07/129,346                   02/14/89
4,804,632                      07/006,695                   02/14/89
4,804,657                      07/063,379                   02/14/89
4,804,662                      07/046,222                   02/14/89
4,804,667                      06/944,405                   02/14/89
4,804,670                      06/771,885                   02/14/89
4,804,692                      07/187,629                   02/14/89
4,804,707                      07/042,275                   02/14/89
4,804,709                      07/162,682                   02/14/89
4,804,710                      07/139,810                   02/14/89
4,804,721                      07/126,378                   02/14/89
4,804,722                      07/085,074                   02/14/89
4,804,727                      07/046,954                   02/14/89
4,804,738                      07/106,822                   02/14/89
4,804,739                      07/066,160                   02/14/89
4,804,749                      07/036,456                   02/14/89
4,804,750                      06/940,358                   02/14/89
4,804,751                      07/068,470                   02/14/89
4,804,757                      07/050,656                   02/14/89
4,804,761                      07/069,809                   02/14/89
4,804,778                      07/105,041                   02/14/89
4,804,784                      06/782,573                   02/14/89
4,804,786                      07/003,796                   02/14/89
4,804,790                      07/133,188                   02/14/89
4,804,793                      07/164,356                   02/14/89
4,804,805                      07/135,651                   02/14/89
4,804,812                      07/108,661                   02/14/89
4,804,833                      06/904,189                   02/14/89
4,804,839                      07/070,458                   02/14/89
4,804,840                      07/117,025                   02/14/89
4,804,854                      07/155,363                   02/14/89
4,804,857                      07/125,002                   02/14/89
4,804,874                      07/060,216                   02/14/89
4,804,876                      07/038,942                   02/14/89
4,804,877                      07/012,169                   02/14/89
4,804,879                      07/051,786                   02/14/89
4,804,885                      06/642,019                   02/14/89
4,804,896                      07/103,113                   02/14/89
4,804,899                      07/051,497                   02/14/89
4,804,905                      06/905,485                   02/14/89
4,804,906                      07/011,097                   02/14/89
4,804,926                      07/150,878                   02/14/89
4,804,927                      07/091,608                   02/14/89
4,804,931                      07/132,207                   02/14/89
4,804,964                      06/894,881                   02/14/89
4,804,966                      06/792,010                   02/14/89
4,804,969                      07/164,246                   02/14/89
4,804,971                      06/852,654                   02/14/89
4,804,978                      07/157,755                   02/14/89
4,804,983                      06/932,365                   02/14/89
4,804,985                      07/148,246                   02/14/89
4,804,995                      06/890,919                   02/14/89
4,805,005                      06/783,086                   02/14/89
4,805,006                      07/166,370                   02/14/89
4,805,021                      06/939,385                   02/14/89
4,805,024                      07/042,818                   02/14/89
4,805,033                      07/177,266                   02/14/89
4,805,044                      07/075,226                   02/14/89
4,805,045                      07/170,632                   02/14/89
4,805,048                      07/116,346                   02/14/89
4,805,059                      06/887,184                   02/14/89
4,805,068                      07/173,890                   02/14/89
4,805,069                      07/022,765                   02/14/89
4,805,074                      07/101,692                   02/14/89
4,805,091                      06/740,943                   02/14/89
4,805,095                      06/812,882                   02/14/89
4,805,097                      07/096,287                   02/14/89
4,805,105                      06/938,024                   02/14/89
4,805,107                      07/039,190                   02/14/89
4,805,111                      06/906,073                   02/14/89
4,805,116                      06/854,965                   02/14/89
4,805,120                      07/183,084                   02/14/89
4,805,121                      06/868,061                   02/14/89
4,805,127                      06/838,592                   02/14/89
4,805,130                      07/030,946                   02/14/89
4,805,142                      06/880,967                   02/14/89
4,805,151                      07/048,571                   02/14/89
4,805,156                      06/910,076                   02/14/89
4,805,160                      07/089,983                   02/14/89
4,805,162                      06/917,259                   02/14/89
4,805,168                      07/150,500                   02/14/89
4,805,169                      06/827,310                   02/14/89
4,805,177                      07/185,706                   02/14/89
4,805,186                      07/079,330                   02/14/89
4,805,193                      07/058,201                   02/14/89
4,805,202                      07/051,577                   02/14/89
4,805,205                      07/046,588                   02/14/89
4,805,213                      07/014,626                   02/14/89
4,805,220                      06/932,153                   02/14/89
4,805,221                      06/723,825                   02/14/89
4,805,226                      06/826,054                   02/14/89
4,805,231                      07/032,609                   02/14/89

                   PATENTS WHICH EXPIRED ON February 9, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                           Serial                      Issue
Number                           Number                       Date

5,184,351                      07/652,102                   02/09/93
5,184,354                      07/705,347                   02/09/93
5,184,355                      07/573,081                   02/09/93
5,184,356                      07/654,357                   02/09/93
5,184,358                      07/765,362                   02/09/93
5,184,360                      07/797,173                   02/09/93
5,184,365                      07/626,583                   02/09/93
5,184,377                      07/798,692                   02/09/93
5,184,378                      07/793,560                   02/09/93
5,184,382                      07/747,968                   02/09/93
5,184,385                      07/548,506                   02/09/93
5,184,393                      07/781,478                   02/09/93
5,184,395                      07/545,368                   02/09/93
5,184,399                      07/723,184                   02/09/93
5,184,406                      07/716,997                   02/09/93
5,184,407                      07/897,147                   02/09/93
5,184,408                      07/467,788                   02/09/93
5,184,417                      07/907,582                   02/09/93
5,184,420                      07/284,439                   02/09/93
5,184,425                      07/876,587                   02/09/93
5,184,429                      07/650,586                   02/09/93
5,184,431                      07/721,602                   02/09/93
5,184,441                      07/699,886                   02/09/93
5,184,442                      07/551,541                   02/09/93
5,184,444                      07/743,522                   02/09/93
5,184,445                      07/628,443                   02/09/93
5,184,451                      07/767,826                   02/09/93
5,184,453                      07/860,243                   02/09/93
5,184,458                      07/439,684                   02/09/93
5,184,465                      07/589,660                   02/09/93
5,184,469                      07/713,609                   02/09/93
5,184,473                      07/833,269                   02/09/93
5,184,478                      07/749,442                   02/09/93
5,184,484                      07/640,370                   02/09/93
5,184,485                      07/680,396                   02/09/93
5,184,486                      07/812,664                   02/09/93
5,184,487                      07/595,306                   02/09/93
5,184,500                      07/496,333                   02/09/93
5,184,503                      07/703,758                   02/09/93
5,184,507                      07/633,243                   02/09/93
5,184,508                      07/685,137                   02/09/93
5,184,509                      07/641,689                   02/09/93
5,184,511                      07/779,224                   02/09/93
5,184,512                      07/801,892                   02/09/93
5,184,514                      07/729,489                   02/09/93
5,184,518                      07/648,121                   02/09/93
5,184,527                      07/710,177                   02/09/93
5,184,528                      07/772,861                   02/09/93
5,184,530                      07/656,757                   02/09/93
5,184,534                      07/792,380                   02/09/93
5,184,542                      07/872,328                   02/09/93
5,184,543                      07/689,637                   02/09/93
5,184,551                      07/699,659                   02/09/93
5,184,556                      07/837,823                   02/09/93
5,184,557                      07/804,555                   02/09/93
5,184,561                      07/738,258                   02/09/93
5,184,566                      07/541,811                   02/09/93
5,184,567                      07/832,850                   02/09/93
5,184,570                      07/824,008                   02/09/93
5,184,571                      07/781,802                   02/09/93
5,184,573                      07/838,847                   02/09/93
5,184,576                      07/698,545                   02/09/93
5,184,577                      07/591,170                   02/09/93
5,184,584                      07/807,723                   02/09/93
5,184,591                      07/788,643                   02/09/93
5,184,603                      07/656,961                   02/09/93
5,184,604                      07/784,522                   02/09/93
5,184,605                      07/648,596                   02/09/93
5,184,611                      07/811,040                   02/09/93
5,184,618                      07/645,595                   02/09/93
5,184,626                      07/703,732                   02/09/93
5,184,631                      07/699,087                   02/09/93
5,184,641                      07/757,682                   02/09/93
5,184,643                      07/822,716                   02/09/93
5,184,646                      07/628,401                   02/09/93
5,184,647                      07/866,022                   02/09/93
5,184,652                      07/724,756                   02/09/93
5,184,660                      07/786,282                   02/09/93
5,184,664                      07/723,076                   02/09/93
5,184,685                      07/727,902                   02/09/93
5,184,697                      07/760,914                   02/09/93
5,184,702                      07/618,180                   02/09/93
5,184,711                      07/766,844                   02/09/93
5,184,713                      07/791,493                   02/09/93
5,184,714                      07/843,890                   02/09/93
5,184,719                      07/906,434                   02/09/93
5,184,720                      07/789,739                   02/09/93
5,184,726                      07/654,343                   02/09/93
5,184,729                      07/873,808                   02/09/93
5,184,730                      07/669,353                   02/09/93
5,184,735                      07/765,603                   02/09/93
5,184,736                      07/848,905                   02/09/93
5,184,742                      07/539,641                   02/09/93
5,184,744                      07/576,855                   02/09/93
5,184,749                      07/897,906                   02/09/93
5,184,755                      07/805,475                   02/09/93
5,184,757                      07/712,590                   02/09/93
5,184,758                      07/472,034                   02/09/93
5,184,764                      07/378,272                   02/09/93
5,184,771                      07/691,009                   02/09/93
5,184,772                      07/802,292                   02/09/93
5,184,780                      07/668,243                   02/09/93
5,184,785                      07/840,397                   02/09/93
5,184,786                      07/803,690                   02/09/93
5,184,794                      07/834,088                   02/09/93
5,184,803                      07/700,463                   02/09/93
5,184,807                      07/780,448                   02/09/93
5,184,825                      07/794,020                   02/09/93
5,184,827                      07/825,061                   02/09/93
5,184,834                      07/770,985                   02/09/93
5,184,839                      07/690,307                   02/09/93
5,184,840                      07/897,421                   02/09/93
5,184,842                      07/748,469                   02/09/93
5,184,845                      07/652,488                   02/09/93
5,184,846                      07/786,276                   02/09/93
5,184,857                      07/879,294                   02/09/93
5,184,861                      07/938,577                   02/09/93
5,184,862                      07/525,822                   02/09/93
5,184,863                      07/827,278                   02/09/93
5,184,866                      07/847,706                   02/09/93
5,184,875                      07/694,614                   02/09/93
5,184,885                      07/884,478                   02/09/93
5,184,886                      07/673,964                   02/09/93
5,184,894                      07/809,578                   02/09/93
5,184,907                      07/694,010                   02/09/93
5,184,908                      07/902,973                   02/09/93
5,184,910                      07/760,589                   02/09/93
5,184,916                      07/830,901                   02/09/93
5,184,921                      07/680,632                   02/09/93
5,184,922                      07/807,716                   02/09/93
5,184,939                      07/526,214                   02/09/93
5,184,947                      07/703,364                   02/09/93
5,184,950                      07/597,711                   02/09/93
5,184,951                      07/923,060                   02/09/93
5,184,955                      07/675,893                   02/09/93
5,184,958                      07/872,479                   02/09/93
5,184,968                      07/813,777                   02/09/93
5,184,969                      07/601,827                   02/09/93
5,184,971                      07/666,707                   02/09/93
5,184,981                      07/638,206                   02/09/93
5,184,987                      07/698,382                   02/09/93
5,184,989                      07/791,457                   02/09/93
5,184,992                      07/892,682                   02/09/93
5,184,997                      07/143,815                   02/09/93
5,184,999                      07/738,967                   02/09/93
5,185,004                      07/709,572                   02/09/93
5,185,009                      07/782,739                   02/09/93
5,185,013                      07/760,337                   02/09/93
5,185,014                      07/787,953                   02/09/93
5,185,017                      07/864,718                   02/09/93
5,185,018                      07/787,243                   02/09/93
5,185,022                      07/789,334                   02/09/93
5,185,024                      07/782,330                   02/09/93
5,185,028                      07/747,220                   02/09/93
5,185,031                      07/815,465                   02/09/93
5,185,037                      07/575,294                   02/09/93
5,185,043                      07/609,007                   02/09/93
5,185,049                      07/704,409                   02/09/93
5,185,053                      07/595,453                   02/09/93
5,185,071                      07/605,796                   02/09/93
5,185,086                      07/730,690                   02/09/93
5,185,087                      07/687,556                   02/09/93
5,185,089                      07/826,694                   02/09/93
5,185,091                      07/789,721                   02/09/93
5,185,096                      07/675,551                   02/09/93
5,185,112                      07/285,571                   02/09/93
5,185,115                      07/679,036                   02/09/93
5,185,123                      07/866,412                   02/09/93
5,185,127                      07/856,885                   02/09/93
5,185,135                      07/743,922                   02/09/93
5,185,149                      07/503,028                   02/09/93
5,185,152                      07/747,432                   02/09/93
5,185,153                      07/592,552                   02/09/93
5,185,155                      07/766,780                   02/09/93
5,185,163                      07/816,292                   02/09/93
5,185,165                      07/300,270                   02/09/93
5,185,166                      07/548,888                   02/09/93
5,185,171                      07/688,630                   02/09/93
5,185,172                      07/642,203                   02/09/93
5,185,173                      07/592,084                   02/09/93
5,185,175                      07/747,815                   02/09/93
5,185,177                      07/596,954                   02/09/93
5,185,180                      07/862,121                   02/09/93
5,185,186                      07/744,105                   02/09/93
5,185,187                      07/726,168                   02/09/93
5,185,201                      07/560,119                   02/09/93
5,185,209                      07/676,675                   02/09/93
5,185,214                      07/714,402                   02/09/93
5,185,218                      07/633,519                   02/09/93
5,185,221                      07/832,108                   02/09/93
5,185,229                      07/643,935                   02/09/93
5,185,231                      07/749,573                   02/09/93
5,185,246                      07/685,439                   02/09/93
5,185,251                      07/711,784                   02/09/93
5,185,255                      07/504,694                   02/09/93
5,185,260                      07/751,855                   02/09/93
5,185,262                      07/473,396                   02/09/93
5,185,276                      07/689,673                   02/09/93
5,185,277                      07/714,230                   02/09/93
5,185,288                      07/464,275                   02/09/93
5,185,297                      07/783,284                   02/09/93
5,185,300                      07/667,483                   02/09/93
5,185,302                      07/777,476                   02/09/93
5,185,303                      07/793,933                   02/09/93
5,185,305                      07/789,706                   02/09/93
5,185,312                      07/834,962                   02/09/93
5,185,317                      07/691,477                   02/09/93
5,185,323                      07/175,552                   02/09/93
5,185,337                      07/691,282                   02/09/93
5,185,339                      07/701,386                   02/09/93
5,185,345                      07/850,994                   02/09/93
5,185,348                      07/887,208                   02/09/93
5,185,354                      07/716,109                   02/09/93
5,185,364                      07/786,150                   02/09/93
5,185,368                      07/221,860                   02/09/93
5,185,371                      07/492,723                   02/09/93
5,185,375                      07/503,119                   02/09/93
5,185,379                      07/811,034                   02/09/93
5,185,381                      07/905,665                   02/09/93
5,185,382                      07/932,938                   02/09/93
5,185,385                      07/685,197                   02/09/93
5,185,393                      07/635,026                   02/09/93
5,185,395                      07/675,787                   02/09/93
5,185,396                      07/575,417                   02/09/93
5,185,398                      07/510,760                   02/09/93
5,185,406                      07/573,030                   02/09/93
5,185,407                      07/751,474                   02/09/93
5,185,411                      07/821,529                   02/09/93
5,185,413                      07/824,870                   02/09/93
5,185,417                      07/865,977                   02/09/93
5,185,419                      07/653,385                   02/09/93
5,185,423                      07/751,334                   02/09/93
5,185,430                      07/565,157                   02/09/93
5,185,452                      07/474,940                   02/09/93
5,185,454                      07/594,265                   02/09/93
5,185,458                      07/717,743                   02/09/93
5,185,461                      07/761,383                   02/09/93
5,185,463                      07/770,191                   02/09/93
5,185,467                      07/772,815                   02/09/93
5,185,473                      07/900,845                   02/09/93
5,185,480                      07/920,742                   02/09/93
5,185,497                      07/783,852                   02/09/93
5,185,503                      07/800,907                   02/09/93
5,185,505                      07/706,752                   02/09/93
5,185,510                      07/715,394                   02/09/93
5,185,512                      07/720,821                   02/09/93
5,185,515                      07/602,859                   02/09/93
5,185,521                      07/528,709                   02/09/93
5,185,523                      07/848,932                   02/09/93
5,185,526                      07/607,993                   02/09/93
5,185,539                      07/576,565                   02/09/93
5,185,546                      07/760,792                   02/09/93
5,185,572                      07/585,880                   02/09/93
5,185,573                      07/685,945                   02/09/93
5,185,578                      07/734,302                   02/09/93
5,185,580                      07/754,758                   02/09/93
5,185,586                      07/695,383                   02/09/93
5,185,589                      07/702,647                   02/09/93
5,185,590                      07/814,974                   02/09/93
5,185,599                      07/555,979                   02/09/93
5,185,616                      07/523,218                   02/09/93
5,185,620                      07/748,415                   02/09/93
5,185,627                      07/770,095                   02/09/93
5,185,637                      07/728,542                   02/09/93
5,185,638                      07/691,941                   02/09/93
5,185,642                      07/631,102                   02/09/93
5,185,648                      07/757,380                   02/09/93
5,185,664                      07/785,678                   02/09/93
5,185,692                      07/707,667                   02/09/93
5,185,703                      07/633,800                   02/09/93
5,185,704                      07/574,220                   02/09/93
5,185,709                      07/649,480                   02/09/93
5,185,712                      07/825,826                   02/09/93
5,185,716                      07/733,693                   02/09/93
5,185,719                      07/545,797                   02/09/93
5,185,720                      07/623,829                   02/09/93
5,185,728                      07/908,757                   02/09/93
5,185,729                      07/678,478                   02/09/93
5,185,730                      07/527,908                   02/09/93
5,185,734                      07/555,952                   02/09/93
5,185,740                      07/555,769                   02/09/93
5,185,745                      07/523,004                   02/09/93
5,185,757                      07/773,152                   02/09/93
5,185,768                      07/594,242                   02/09/93
5,185,772                      07/751,108                   02/09/93
5,185,779                      07/414,314                   02/09/93
5,185,798                      07/663,950                   02/09/93
5,185,804                      07/777,054                   02/09/93
5,185,807                      07/697,325                   02/09/93
5,185,810                      07/692,194                   02/09/93
5,185,811                      07/825,434                   02/09/93
5,185,815                      07/787,813                   02/09/93
5,185,816                      07/627,208                   02/09/93
5,185,822                      07/751,667                   02/09/93
5,185,836                      07/827,351                   02/09/93
5,185,837                      07/870,895                   02/09/93
5,185,848                      07/448,949                   02/09/93
5,185,871                      07/457,222                   02/09/93

                  PATENTS WHICH EXPIRED ON February 11, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                           Serial                      Issue
Number                           Number                       Date

5,600,851                      08/436,114                   02/11/97
5,600,852                      08/615,018                   02/11/97
5,600,855                      08/591,260                   02/11/97
5,600,860                      08/265,442                   02/11/97
5,600,863                      08/581,311                   02/11/97
5,600,864                      08/557,387                   02/11/97
5,600,869                      08/491,885                   02/11/97
5,600,875                      08/523,268                   02/11/97
5,600,880                      08/440,513                   02/11/97
5,600,882                      08/385,907                   02/11/97
5,600,883                      08/461,899                   02/11/97
5,600,888                      08/290,768                   02/11/97
5,600,891                      08/539,796                   02/11/97
5,600,892                      08/457,120                   02/11/97
5,600,893                      08/503,977                   02/11/97
5,600,896                      08/439,342                   02/11/97
5,600,901                      08/286,156                   02/11/97
5,600,902                      08/539,002                   02/11/97
5,600,906                      08/538,220                   02/11/97
5,600,907                      08/094,260                   02/11/97
5,600,911                      08/494,387                   02/11/97
5,600,919                      08/444,357                   02/11/97
5,600,922                      08/209,813                   02/11/97
5,600,923                      08/287,363                   02/11/97
5,600,935                      08/504,572                   02/11/97
5,600,937                      08/398,437                   02/11/97
5,600,938                      08/532,430                   02/11/97
5,600,940                      08/238,883                   02/11/97
5,600,945                      08/514,761                   02/11/97
5,600,948                      08/277,028                   02/11/97
5,600,958                      08/413,550                   02/11/97
5,600,959                      08/537,742                   02/11/97
5,600,961                      08/301,759                   02/11/97
5,600,964                      08/401,147                   02/11/97
5,600,965                      08/616,144                   02/11/97
5,600,968                      08/448,499                   02/11/97
5,600,971                      08/632,108                   02/11/97
5,600,980                      08/542,928                   02/11/97
5,600,998                      08/386,709                   02/11/97
5,601,000                      08/304,704                   02/11/97
5,601,006                      08/314,876                   02/11/97
5,601,007                      08/343,224                   02/11/97
5,601,011                      08/523,619                   02/11/97
5,601,012                      08/523,261                   02/11/97
5,601,017                      08/562,199                   02/11/97
5,601,024                      07/627,397                   02/11/97
5,601,028                      08/422,539                   02/11/97
5,601,029                      08/408,796                   02/11/97
5,601,030                      08/610,202                   02/11/97
5,601,032                      08/596,070                   02/11/97
5,601,034                      08/309,417                   02/11/97
5,601,036                      08/421,538                   02/11/97
5,601,038                      08/301,424                   02/11/97
5,601,041                      08/530,668                   02/11/97
5,601,042                      08/524,489                   02/11/97
5,601,043                      08/388,167                   02/11/97
5,601,045                      08/543,148                   02/11/97
5,601,056                      08/540,929                   02/11/97
5,601,062                      08/522,488                   02/11/97
5,601,072                      08/661,997                   02/11/97
5,601,075                      08/506,014                   02/11/97
5,601,095                      08/247,140                   02/11/97
5,601,098                      08/460,574                   02/11/97
5,601,103                      08/538,590                   02/11/97
5,601,108                      08/578,062                   02/11/97
5,601,118                      08/513,023                   02/11/97
5,601,121                      08/424,287                   02/11/97
5,601,123                      08/405,526                   02/11/97
5,601,128                      08/523,587                   02/11/97
5,601,131                      08/582,216                   02/11/97
5,601,132                      08/390,366                   02/11/97
5,601,136                      08/468,256                   02/11/97
5,601,137                      08/576,348                   02/11/97
5,601,142                      08/358,434                   02/11/97
5,601,152                      08/409,194                   02/11/97
5,601,156                      08/630,223                   02/11/97
5,601,174                      08/418,653                   02/11/97
5,601,180                      08/582,860                   02/11/97
5,601,184                      08/536,778                   02/11/97
5,601,191                      08/421,555                   02/11/97
5,601,194                      08/461,108                   02/11/97
5,601,197                      08/379,728                   02/11/97
5,601,198                      08/353,716                   02/11/97
5,601,202                      08/372,192                   02/11/97
5,601,203                      08/524,341                   02/11/97
5,601,206                      08/469,074                   02/11/97
5,601,211                      08/456,674                   02/11/97
5,601,215                      08/444,009                   02/11/97
5,601,216                      08/571,391                   02/11/97
5,601,221                      08/597,565                   02/11/97
5,601,225                      08/506,806                   02/11/97
5,601,235                      08/340,869                   02/11/97
5,601,236                      08/374,317                   02/11/97
5,601,242                      08/500,964                   02/11/97
5,601,245                      08/602,607                   02/11/97
5,601,259                      08/622,071                   02/11/97
5,601,260                      08/437,387                   02/11/97
5,601,264                      08/222,701                   02/11/97
5,601,270                      08/543,857                   02/11/97
5,601,284                      08/600,265                   02/11/97
5,601,285                      08/573,668                   02/11/97
5,601,286                      08/497,854                   02/11/97
5,601,288                      08/572,035                   02/11/97
5,601,294                      08/603,914                   02/11/97
5,601,296                      08/519,712                   02/11/97
5,601,299                      08/626,996                   02/11/97
5,601,300                      08/251,794                   02/11/97
5,601,308                      08/447,796                   02/11/97
5,601,309                      08/568,999                   02/11/97
5,601,318                      08/541,271                   02/11/97
5,601,319                      08/412,467                   02/11/97
5,601,334                      08/502,069                   02/11/97
5,601,340                      08/247,015                   02/11/97
5,601,341                      08/441,266                   02/11/97
5,601,342                      08/367,154                   02/11/97
5,601,344                      08/540,566                   02/11/97
5,601,347                      08/453,002                   02/11/97
5,601,356                      08/491,214                   02/11/97
5,601,374                      08/540,646                   02/11/97
5,601,377                      08/264,948                   02/11/97
5,601,395                      08/482,495                   02/11/97
5,601,402                      06/874,201                   02/11/97
5,601,404                      08/551,316                   02/11/97
5,601,412                      08/550,986                   02/11/97
5,601,416                      08/475,043                   02/11/97
5,601,427                      08/506,051                   02/11/97
5,601,430                      08/528,850                   02/11/97
5,601,440                      08/600,701                   02/11/97
5,601,446                      08/553,162                   02/11/97
5,601,453                      08/277,989                   02/11/97
5,601,456                      08/540,485                   02/11/97
5,601,457                      08/327,672                   02/11/97
5,601,462                      08/636,049                   02/11/97
5,601,467                      08/491,651                   02/11/97
5,601,468                      08/618,771                   02/11/97
5,601,471                      08/559,418                   02/11/97
5,601,472                      08/516,947                   02/11/97
5,601,475                      08/664,896                   02/11/97
5,601,476                      08/357,123                   02/11/97
5,601,478                      08/421,778                   02/11/97
5,601,479                      08/314,236                   02/11/97
5,601,482                      08/559,083                   02/11/97
5,601,486                      08/510,889                   02/11/97
5,601,493                      08/139,648                   02/11/97
5,601,496                      08/621,526                   02/11/97
5,601,514                      08/544,967                   02/11/97
5,601,517                      08/264,708                   02/11/97
5,601,520                      08/273,479                   02/11/97
5,601,523                      08/502,019                   02/11/97
5,601,524                      08/511,478                   02/11/97
5,601,534                      08/486,191                   02/11/97
5,601,550                      08/329,068                   02/11/97
5,601,568                      08/277,753                   02/11/97
5,601,570                      08/403,296                   02/11/97
5,601,577                      08/328,879                   02/11/97
5,601,592                      08/368,983                   02/11/97
5,601,620                      08/442,941                   02/11/97
5,601,622                      08/541,008                   02/11/97
5,601,624                      08/419,305                   02/11/97
5,601,625                      08/352,341                   02/11/97
5,601,640                      08/403,861                   02/11/97
5,601,646                      08/451,536                   02/11/97
5,601,655                      08/388,076                   02/11/97
5,601,657                      08/427,318                   02/11/97
5,601,658                      08/497,216                   02/11/97
5,601,667                      08/454,138                   02/11/97
5,601,673                      08/367,560                   02/11/97
5,601,681                      08/265,398                   02/11/97
5,601,700                      08/362,979                   02/11/97
5,601,702                      08/367,498                   02/11/97
5,601,703                      08/567,191                   02/11/97
5,601,704                      08/225,650                   02/11/97
5,601,706                      08/495,685                   02/11/97
5,601,710                      08/500,060                   02/11/97
5,601,715                      08/525,288                   02/11/97
5,601,720                      08/230,340                   02/11/97
5,601,726                      08/550,908                   02/11/97
5,601,727                      08/232,174                   02/11/97
5,601,765                      08/409,636                   02/11/97
5,601,766                      08/437,363                   02/11/97
5,601,770                      08/536,684                   02/11/97
5,601,771                      08/465,320                   02/11/97
5,601,772                      08/527,433                   02/11/97
5,601,787                      07/893,965                   02/11/97
5,601,795                      08/551,038                   02/11/97
5,601,796                      08/561,778                   02/11/97
5,601,797                      08/587,558                   02/11/97
5,601,798                      08/298,158                   02/11/97
5,601,799                      08/369,430                   02/11/97
5,601,804                      08/459,681                   02/11/97
5,601,849                      08/548,274                   02/11/97
5,601,850                      08/446,332                   02/11/97
5,601,868                      08/529,543                   02/11/97
5,601,890                      08/332,639                   02/11/97
5,601,906                      08/245,120                   02/11/97
5,601,909                      08/569,051                   02/11/97
5,601,912                      08/429,590                   02/11/97
5,601,934                      08/465,284                   02/11/97
5,601,937                      08/378,298                   02/11/97
5,601,942                      08/385,286                   02/11/97
5,601,953                      08/492,221                   02/11/97
5,601,967                      07/656,660                   02/11/97
5,601,987                      07/185,439                   02/11/97
5,601,999                      08/299,414                   02/11/97
5,602,010                      08/263,214                   02/11/97
5,602,061                      08/167,031                   02/11/97
5,602,069                      08/323,335                   02/11/97
5,602,072                      08/347,321                   02/11/97
5,602,074                      08/343,563                   02/11/97
5,602,086                      08/634,135                   02/11/97
5,602,087                      08/284,857                   02/11/97
5,602,093                      08/416,684                   02/11/97
5,602,102                      07/890,422                   02/11/97
5,602,115                      08/345,508                   02/11/97
5,602,120                      08/354,766                   02/11/97
5,602,121                      08/354,793                   02/11/97
5,602,124                      08/354,765                   02/11/97
5,602,125                      08/392,778                   02/11/97
5,602,149                      08/577,935                   02/11/97
5,602,151                      08/572,993                   02/11/97
5,602,152                      08/284,454                   02/11/97
5,602,154                      08/444,480                   02/11/97
5,602,160                      08/423,208                   02/11/97
5,602,161                      08/398,786                   02/11/97
5,602,181                      08/321,770                   02/11/97
5,602,196                      08/562,774                   02/11/97
5,602,205                      08/430,051                   02/11/97
5,602,208                      08/196,085                   02/11/97
5,602,212                      08/653,848                   02/11/97
5,602,222                      08/543,230                   02/11/97
5,602,226                      08/467,195                   02/11/97
5,602,228                      08/467,099                   02/11/97
5,602,238                      08/519,226                   02/11/97
5,602,247                      08/454,315                   02/11/97
5,602,248                      08/405,110                   02/11/97
5,602,255                      08/416,512                   02/11/97
5,602,259                      08/355,328                   02/11/97
5,602,268                      08/504,611                   02/11/97
5,602,274                      08/396,458                   02/11/97
5,602,277                      08/413,886                   02/11/97
5,602,284                      08/526,146                   02/11/97
5,602,293                      08/416,844                   02/11/97
5,602,294                      08/455,855                   02/11/97
5,602,309                      08/438,122                   02/11/97
5,602,315                      08/412,367                   02/11/97
5,602,321                      08/241,943                   02/11/97
5,602,323                      08/256,613                   02/11/97
5,602,336                      08/337,462                   02/11/97
5,602,344                      08/299,362                   02/11/97
5,602,354                      08/397,358                   02/11/97
5,602,359                      08/514,615                   02/11/97
5,602,370                      08/522,936                   02/11/97
5,602,373                      08/417,862                   02/11/97
5,602,385                      08/341,072                   02/11/97
5,602,390                      08/626,848                   02/11/97
5,602,403                      07/662,696                   02/11/97
5,602,406                      08/517,193                   02/11/97
5,602,414                      08/260,791                   02/11/97
5,602,420                      08/429,463                   02/11/97
5,602,426                      08/445,253                   02/11/97
5,602,428                      08/484,652                   02/11/97
5,602,432                      08/288,566                   02/11/97
5,602,435                      08/291,829                   02/11/97
5,602,438                      08/547,631                   02/11/97
5,602,452                      08/531,172                   02/11/97
5,602,472                      08/546,343                   02/11/97
5,602,475                      08/222,151                   02/11/97
5,602,477                      08/384,568                   02/11/97
5,602,509                      08/488,779                   02/11/97
5,602,515                      08/520,278                   02/11/97
5,602,516                      08/543,415                   02/11/97
5,602,523                      08/550,381                   02/11/97
5,602,525                      08/381,732                   02/11/97
5,602,580                      08/123,299                   02/11/97
5,602,591                      08/251,273                   02/11/97
5,602,605                      08/640,482                   02/11/97
5,602,618                      08/249,779                   02/11/97
5,602,646                      08/541,205                   02/11/97
5,602,668                      08/346,644                   02/11/97
5,602,677                      08/245,538                   02/11/97
5,602,679                      08/384,724                   02/11/97
5,602,711                      08/347,066                   02/11/97
5,602,728                      08/301,612                   02/11/97
5,602,742                      08/370,845                   02/11/97
5,602,751                      08/395,549                   02/11/97
5,602,768                      08/465,992                   02/11/97
5,602,774                      08/558,896                   02/11/97
5,602,775                      08/404,510                   02/11/97
5,602,801                      08/530,462                   02/11/97
5,602,802                      08/338,859                   02/11/97
5,602,814                      08/319,179                   02/11/97
5,602,826                      08/565,048                   02/11/97
5,602,840                      08/307,753                   02/11/97
5,602,848                      08/460,951                   02/11/97
5,602,851                      08/336,152                   02/11/97
5,602,860                      08/424,116                   02/11/97
5,602,863                      08/276,655                   02/11/97
5,602,874                      08/389,474                   02/11/97
5,602,889                      08/514,522                   02/11/97
5,602,891                      08/558,019                   02/11/97
5,602,931                      08/537,462                   02/11/97
5,602,943                      08/335,549                   02/11/97
5,602,950                      08/593,002                   02/11/97
5,602,957                      08/077,513                   02/11/97
5,602,959                      08/349,638                   02/11/97
5,602,966                      08/312,721                   02/11/97
5,603,043                      08/415,750                   02/11/97
5,603,073                      07/938,821                   02/11/97
5,603,077                      08/358,720                   02/11/97
5,603,094                      08/281,595                   02/11/97
5,603,109                      08/220,065                   02/11/97
5,603,115                      08/417,191                   02/11/97