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 August 30, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                        Serial                        Issue
Number                        Number                         Date

4,766,631                   07/091,912                   08/30/88
4,766,633                   07/050,959                   08/30/88
4,766,636                   07/094,778                   08/30/88
4,766,643                   06/947,071                   08/30/88
4,766,648                   06/412,266                   08/30/88
4,766,653                   07/109,134                   08/30/88
4,766,664                   07/015,329                   08/30/88
4,766,669                   06/944,779                   08/30/88
4,766,673                   07/071,214                   08/30/88
4,766,676                   07/024,834                   08/30/88
4,766,677                   06/867,816                   08/30/88
4,766,696                   06/929,377                   08/30/88
4,766,702                   06/943,922                   08/30/88
4,766,703                   07/028,482                   08/30/88
4,766,716                   07/104,815                   08/30/88
4,766,721                   06/917,973                   08/30/88
4,766,722                   06/890,474                   08/30/88
4,766,731                   07/091,888                   08/30/88
4,766,733                   07/110,122                   08/30/88
4,766,758                   07/042,718                   08/30/88
4,766,761                   07/092,817                   08/30/88
4,766,764                   07/018,673                   08/30/88
4,766,766                   06/825,715                   08/30/88
4,766,783                   06/888,303                   08/30/88
4,766,786                   07/003,084                   08/30/88
4,766,788                   07/013,113                   08/30/88
4,766,798                   07/059,046                   08/30/88
4,766,799                   07/087,539                   08/30/88
4,766,808                   07/038,906                   08/30/88
4,766,816                   06/934,991                   08/30/88
4,766,821                   07/129,608                   08/30/88
4,766,824                   06/933,220                   08/30/88
4,766,827                   06/868,499                   08/30/88
4,766,830                   06/896,776                   08/30/88
4,766,832                   07/062,124                   08/30/88
4,766,843                   06/891,660                   08/30/88
4,766,857                   07/094,454                   08/30/88
4,766,862                   07/137,628                   08/30/88
4,766,864                   06/845,111                   08/30/88
4,766,870                   07/043,727                   08/30/88
4,766,877                   07/103,931                   08/30/88
4,766,884                   07/058,880                   08/30/88
4,766,890                   07/000,839                   08/30/88
4,766,896                   07/083,897                   08/30/88
4,766,903                   06/572,183                   08/30/88
4,766,913                   06/444,147                   08/30/88
4,766,927                   07/008,872                   08/30/88
4,766,944                   06/876,577                   08/30/88
4,766,947                   07/009,564                   08/30/88
4,766,953                   07/029,671                   08/30/88
4,766,977                   06/918,266                   08/30/88
4,766,991                   06/938,717                   08/30/88
4,767,001                   07/017,904                   08/30/88
4,767,008                   07/115,342                   08/30/88
4,767,012                   07/010,330                   08/30/88
4,767,014                   07/057,396                   08/30/88
4,767,021                   07/113,793                   08/30/88
4,767,030                   07/121,691                   08/30/88
4,767,032                   06/902,603                   08/30/88
4,767,039                   07/059,250                   08/30/88
4,767,041                   06/875,960                   08/30/88
4,767,050                   06/843,318                   08/30/88
4,767,073                   06/833,510                   08/30/88
4,767,080                   07/087,350                   08/30/88
4,767,081                   06/921,094                   08/30/88
4,767,090                   06/857,711                   08/30/88
4,767,100                   06/298,066                   08/30/88
4,767,103                   06/822,597                   08/30/88
4,767,104                   07/033,869                   08/30/88
4,767,112                   07/010,343                   08/30/88
4,767,113                   06/936,743                   08/30/88
4,767,118                   06/850,969                   08/30/88
4,767,129                   06/821,998                   08/30/88
4,767,153                   07/001,455                   08/30/88
4,767,155                   06/640,788                   08/30/88
4,767,157                   07/006,340                   08/30/88
4,767,161                   06/865,879                   08/30/88
4,767,162                   07/006,521                   08/30/88
4,767,163                   07/137,894                   08/30/88
4,767,165                   07/016,227                   08/30/88
4,767,166                   07/043,485                   08/30/88
4,767,177                   06/595,443                   08/30/88
4,767,182                   07/133,219                   08/30/88
4,767,184                   07/035,424                   08/30/88
4,767,191                   07/037,478                   08/30/88
4,767,207                   06/796,206                   08/30/88
4,767,211                   07/088,538                   08/30/88
4,767,217                   07/047,747                   08/30/88
4,767,218                   07/045,821                   08/30/88
4,767,219                   06/823,847                   08/30/88
4,767,231                   06/779,783                   08/30/88
4,767,236                   07/065,275                   08/30/88
4,767,243                   06/832,954                   08/30/88
4,767,250                   07/037,337                   08/30/88
4,767,257                   06/911,706                   08/30/88
4,767,258                   06/860,653                   08/30/88
4,767,262                   07/079,136                   08/30/88
4,767,280                   07/089,533                   08/30/88
4,767,283                   07/078,417                   08/30/88
4,767,285                   07/037,844                   08/30/88
4,767,286                   07/057,381                   08/30/88
4,767,295                   07/083,512                   08/30/88
4,767,298                   06/945,434                   08/30/88
4,767,300                   07/115,676                   08/30/88
4,767,306                   06/852,573                   08/30/88
4,767,308                   06/793,804                   08/30/88
4,767,312                   07/034,545                   08/30/88
4,767,314                   07/059,611                   08/30/88
4,767,320                   07/114,070                   08/30/88
4,767,337                   06/875,583                   08/30/88
4,767,338                   07/040,348                   08/30/88
4,767,356                   06/926,109                   08/30/88
4,767,361                   07/135,469                   08/30/88
4,767,380                   07/010,727                   08/30/88
4,767,383                   06/926,341                   08/30/88
4,767,397                   07/023,436                   08/30/88
4,767,407                   06/885,430                   08/30/88
4,767,408                   07/128,004                   08/30/88
4,767,419                   07/101,469                   08/30/88
4,767,427                   07/115,222                   08/30/88
4,767,441                   07/098,174                   08/30/88
4,767,444                   07/058,062                   08/30/88
4,767,453                   07/144,347                   08/30/88
4,767,454                   07/011,385                   08/30/88
4,767,473                   06/802,219                   08/30/88
4,767,475                   06/919,059                   08/30/88
4,767,493                   06/923,606                   08/30/88
4,767,495                   07/130,472                   08/30/88
4,767,496                   07/113,829                   08/30/88
4,767,508                   07/016,942                   08/30/88
4,767,516                   06/864,357                   08/30/88
4,767,517                   07/020,226                   08/30/88
4,767,524                   07/081,928                   08/30/88
4,767,528                   07/112,045                   08/30/88
4,767,535                   06/899,932                   08/30/88
4,767,536                   07/090,147                   08/30/88
4,767,537                   07/031,662                   08/30/88
4,767,551                   06/929,628                   08/30/88
4,767,552                   06/877,637                   08/30/88
4,767,553                   06/945,982                   08/30/88
4,767,554                   07/098,438                   08/30/88
4,767,558                   06/830,821                   08/30/88
4,767,559                   07/035,848                   08/30/88
4,767,561                   07/100,220                   08/30/88
4,767,572                   07/113,338                   08/30/88
4,767,573                   07/060,712                   08/30/88
4,767,576                   06/927,812                   08/30/88
4,767,577                   06/914,072                   08/30/88
4,767,579                   07/115,675                   08/30/88
4,767,581                   06/913,455                   08/30/88
4,767,582                   06/943,803                   08/30/88
4,767,583                   06/876,046                   08/30/88
4,767,587                   06/851,741                   08/30/88
4,767,588                   06/850,665                   08/30/88
4,767,589                   07/036,783                   08/30/88
4,767,611                   06/627,536                   08/30/88
4,767,613                   07/076,874                   08/30/88
4,767,618                   06/790,145                   08/30/88
4,767,623                   06/882,897                   08/30/88
4,767,630                   06/771,228                   08/30/88
4,767,633                   06/879,428                   08/30/88
4,767,637                   06/899,307                   08/30/88
4,767,653                   06/796,702                   08/30/88
4,767,663                   06/931,466                   08/30/88
4,767,686                   07/097,355                   08/30/88
4,767,696                   06/918,152                   08/30/88
4,767,706                   06/853,639                   08/30/88
4,767,721                   06/827,140                   08/30/88
4,767,725                   06/815,107                   08/30/88
4,767,728                   06/890,577                   08/30/88
4,767,732                   07/090,605                   08/30/88
4,767,738                   06/932,880                   08/30/88
4,767,742                   06/897,610                   08/30/88
4,767,752                   06/840,183                   08/30/88
4,767,758                   07/020,162                   08/30/88
4,767,762                   06/937,601                   08/30/88
4,767,767                   07/059,911                   08/30/88
4,767,768                   06/559,260                   08/30/88
4,767,781                   06/939,152                   08/30/88
4,767,783                   06/896,319                   08/30/88
4,767,802                   07/110,271                   08/30/88
4,767,803                   06/881,294                   08/30/88
4,767,806                   07/000,606                   08/30/88
4,767,810                   06/944,033                   08/30/88
4,767,811                   07/082,936                   08/30/88
4,767,839                   07/070,273                   08/30/88
4,767,841                   07/017,949                   08/30/88
4,767,846                   06/941,783                   08/30/88
4,767,849                   07/069,270                   08/30/88
4,767,860                   06/917,861                   08/30/88
4,767,861                   07/081,704                   08/30/88
4,767,863                   07/066,289                   08/30/88
4,767,871                   07/045,011                   08/30/88
4,767,882                   06/902,063                   08/30/88
4,767,886                   07/022,222                   08/30/88
4,767,892                   07/012,945                   08/30/88
4,767,897                   07/116,610                   08/30/88
4,767,900                   07/087,935                   08/30/88
4,767,902                   06/910,984                   08/30/88
4,767,907                   06/855,650                   08/30/88
4,767,914                   06/907,994                   08/30/88
4,767,929                   06/915,841                   08/30/88
4,767,936                   06/884,805                   08/30/88
4,767,939                   07/060,024                   08/30/88
4,767,943                   07/001,146                   08/30/88
4,767,959                   07/094,738                   08/30/88
4,767,963                   06/876,530                   08/30/88
4,767,964                   07/011,082                   08/30/88
4,767,969                   07/053,763                   08/30/88
4,767,971                   07/122,341                   08/30/88
4,767,972                   06/906,716                   08/30/88
4,767,973                   07/070,349                   08/30/88
4,767,979                   07/068,523                   08/30/88
4,767,984                   07/139,173                   08/30/88
4,767,998                   07/016,694                   08/30/88
4,768,002                   07/017,718                   08/30/88
4,768,007                   07/019,140                   08/30/88
4,768,011                   06/946,478                   08/30/88
4,768,013                   07/068,492                   08/30/88
4,768,017                   07/076,267                   08/30/88
4,768,029                   07/056,588                   08/30/88
4,768,032                   07/029,361                   08/30/88
4,768,033                   07/097,730                   08/30/88
4,768,035                   06/724,850                   08/30/88
4,768,036                   07/117,547                   08/30/88
4,768,039                   07/055,155                   08/30/88
4,768,044                   07/087,214                   08/30/88
4,768,045                   06/917,641                   08/30/88
4,768,050                   07/039,393                   08/30/88
4,768,076                   06/774,705                   08/30/88
4,768,079                   07/107,954                   08/30/88
4,768,081                   06/908,687                   08/30/88
4,768,086                   07/051,925                   08/30/88
4,768,091                   07/110,251                   08/30/88
4,768,093                   06/871,188                   08/30/88
4,768,098                   07/091,468                   08/30/88
4,768,107                   06/867,925                   08/30/88
4,768,110                   07/048,521                   08/30/88
4,768,112                   06/937,487                   08/30/88
4,768,132                   06/935,041                   08/30/88
4,768,136                   06/940,778                   08/30/88
4,768,142                   06/910,102                   08/30/88
4,768,146                   06/859,373                   08/30/88
4,768,154                   07/047,986                   08/30/88
4,768,156                   06/861,490                   08/30/88
4,768,158                   07/006,123                   08/30/88
4,768,160                   06/852,278                   08/30/88
4,768,166                   07/097,330                   08/30/88
4,768,167                   06/913,434                   08/30/88
4,768,168                   06/840,827                   08/30/88
4,768,173                   07/069,173                   08/30/88
4,768,175                   07/006,143                   08/30/88
4,768,183                   07/087,345                   08/30/88
4,768,185                   06/401,662                   08/30/88
4,768,186                   06/828,293                   08/30/88
4,768,195                   07/091,062                   08/30/88
4,768,199                   06/904,191                   08/30/88
4,768,200                   06/875,321                   08/30/88
4,768,201                   06/760,538                   08/30/88
4,768,211                   07/051,213                   08/30/88

                   PATENTS WHICH EXPIRED ON August 25, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,141,218                   07/760,197                   08/25/92
5,141,219                   07/433,350                   08/25/92
5,141,231                   07/627,268                   08/25/92
5,141,236                   07/791,193                   08/25/92
5,141,245                   07/713,593                   08/25/92
5,141,246                   07/652,640                   08/25/92
5,141,250                   07/622,488                   08/25/92
5,141,255                   07/725,472                   08/25/92
5,141,262                   07/682,845                   08/25/92
5,141,266                   07/488,311                   08/25/92
5,141,270                   07/796,295                   08/25/92
5,141,277                   07/706,960                   08/25/92
5,141,281                   07/691,418                   08/25/92
5,141,283                   07/726,131                   08/25/92
5,141,285                   07/315,474                   08/25/92
5,141,290                   07/693,190                   08/25/92
5,141,291                   07/535,639                   08/25/92
5,141,294                   07/423,464                   08/25/92
5,141,295                   07/445,605                   08/25/92
5,141,303                   07/519,875                   08/25/92
5,141,305                   07/648,729                   08/25/92
5,141,306                   07/737,018                   08/25/92
5,141,311                   07/517,739                   08/25/92
5,141,314                   07/662,924                   08/25/92
5,141,317                   07/623,920                   08/25/92
5,141,319                   07/792,819                   08/25/92
5,141,329                   07/589,376                   08/25/92
5,141,337                   07/802,825                   08/25/92
5,141,340                   07/627,316                   08/25/92
5,141,343                   07/727,198                   08/25/92
5,141,352                   07/648,292                   08/25/92
5,141,354                   07/764,708                   08/25/92
5,141,359                   07/746,742                   08/25/92
5,141,366                   07/592,384                   08/25/92
5,141,383                   07/678,738                   08/25/92
5,141,385                   07/542,546                   08/25/92
5,141,388                   07/447,383                   08/25/92
5,141,402                   07/647,609                   08/25/92
5,141,403                   07/623,464                   08/25/92
5,141,406                   07/717,868                   08/25/92
5,141,411                   07/621,363                   08/25/92
5,141,415                   07/696,444                   08/25/92
5,141,425                   07/487,500                   08/25/92
5,141,431                   07/816,400                   08/25/92
5,141,433                   07/520,070                   08/25/92
5,141,434                   07/627,211                   08/25/92
5,141,438                   07/694,373                   08/25/92
5,141,440                   07/556,836                   08/25/92
5,141,441                   07/649,573                   08/25/92
5,141,444                   07/744,134                   08/25/92
5,141,446                   07/725,701                   08/25/92
5,141,449                   07/756,048                   08/25/92
5,141,450                   07/728,788                   08/25/92
5,141,465                   07/736,419                   08/25/92
5,141,469                   07/645,894                   08/25/92
5,141,473                   07/805,574                   08/25/92
5,141,474                   07/759,764                   08/25/92
5,141,478                   07/615,072                   08/25/92
5,141,481                   07/695,978                   08/25/92
5,141,482                   07/542,635                   08/25/92
5,141,488                   07/564,646                   08/25/92
5,141,491                   07/573,151                   08/25/92
5,141,494                   07/481,478                   08/25/92
5,141,501                   07/526,086                   08/25/92
5,141,524                   07/608,526                   08/25/92
5,141,527                   07/498,278                   08/25/92
5,141,529                   07/544,524                   08/25/92
5,141,537                   07/814,650                   08/25/92
5,141,540                   07/833,778                   08/25/92
5,141,546                   07/815,954                   08/25/92
5,141,547                   07/657,773                   08/25/92
5,141,548                   07/701,453                   08/25/92
5,141,554                   07/716,742                   08/25/92
5,141,556                   07/714,879                   08/25/92
5,141,559                   07/487,578                   08/25/92
5,141,560                   07/659,496                   08/25/92
5,141,563                   07/452,861                   08/25/92
5,141,564                   07/644,069                   08/25/92
5,141,570                   07/629,035                   08/25/92
5,141,573                   07/604,357                   08/25/92
5,141,576                   07/504,457                   08/25/92
5,141,585                   07/576,138                   08/25/92
5,141,589                   07/366,857                   08/25/92
5,141,595                   07/490,002                   08/25/92
5,141,603                   07/595,648                   08/25/92
5,141,611                   07/415,399                   08/25/92
5,141,615                   07/719,226                   08/25/92
5,141,617                   07/689,426                   08/25/92
5,141,618                   07/773,976                   08/25/92
5,141,619                   07/728,538                   08/25/92
5,141,621                   07/470,883                   08/25/92
5,141,632                   07/703,249                   08/25/92
5,141,637                   07/620,060                   08/25/92
5,141,638                   07/701,191                   08/25/92
5,141,644                   07/575,333                   08/25/92
5,141,649                   07/772,314                   08/25/92
5,141,658                   07/751,367                   08/25/92
5,141,659                   07/637,274                   08/25/92
5,141,661                   07/753,591                   08/25/92
5,141,668                   07/347,750                   08/25/92
5,141,669                   07/373,522                   08/25/92
5,141,670                   07/417,050                   08/25/92
5,141,675                   07/597,634                   08/25/92
5,141,682                   07/640,187                   08/25/92
5,141,683                   07/467,261                   08/25/92
5,141,687                   07/534,047                   08/25/92
5,141,698                   07/670,503                   08/25/92
5,141,707                   07/733,672                   08/25/92
5,141,710                   07/720,131                   08/25/92
5,141,712                   07/729,758                   08/25/92
5,141,714                   07/560,556                   08/25/92
5,141,717                   07/633,569                   08/25/92
5,141,720                   07/639,394                   08/25/92
5,141,721                   07/689,167                   08/25/92
5,141,722                   07/695,082                   08/25/92
5,141,723                   07/770,386                   08/25/92
5,141,728                   07/179,175                   08/25/92
5,141,729                   07/179,343                   08/25/92
5,141,732                   07/683,500                   08/25/92
5,141,737                   07/468,102                   08/25/92
5,141,742                   07/702,142                   08/25/92
5,141,749                   07/280,083                   08/25/92
5,141,755                   07/706,647                   08/25/92
5,141,756                   07/565,512                   08/25/92
5,141,764                   07/737,400                   08/25/92
5,141,767                   07/641,307                   08/25/92
5,141,772                   07/779,670                   08/25/92
5,141,782                   07/694,750                   08/25/92
5,141,783                   07/617,091                   08/25/92
5,141,792                   07/580,174                   08/25/92
5,141,797                   07/711,246                   08/25/92
5,141,802                   07/655,256                   08/25/92
5,141,818                   07/445,848                   08/25/92
5,141,819                   07/657,286                   08/25/92
5,141,821                   07/529,583                   08/25/92
5,141,823                   06/734,705                   08/25/92
5,141,824                   07/694,785                   08/25/92
5,141,826                   07/763,435                   08/25/92
5,141,828                   07/523,496                   08/25/92
5,141,830                   07/807,800                   08/25/92
5,141,839                   07/676,130                   08/25/92
5,141,843                   07/675,518                   08/25/92
5,141,847                   07/482,231                   08/25/92
5,141,848                   07/511,863                   08/25/92
5,141,852                   07/282,562                   08/25/92
5,141,855                   06/890,051                   08/25/92
5,141,863                   07/517,383                   08/25/92
5,141,864                   07/270,205                   08/25/92
5,141,872                   07/466,788                   08/25/92
5,141,873                   07/263,422                   08/25/92
5,141,888                   07/642,922                   08/25/92
5,141,899                   07/749,679                   08/25/92
5,141,902                   07/766,946                   08/25/92
5,141,903                   07/502,914                   08/25/92
5,141,907                   07/531,436                   08/25/92
5,141,911                   07/671,715                   08/25/92
5,141,921                   07/683,911                   08/25/92
5,141,923                   07/635,846                   08/25/92
5,141,924                   07/374,503                   08/25/92
5,141,926                   07/510,483                   08/25/92
5,141,928                   07/453,624                   08/25/92
5,141,930                   07/726,683                   08/25/92
5,141,931                   07/637,109                   08/25/92
5,141,935                   07/411,847                   08/25/92
5,141,936                   07/353,280                   08/25/92
5,141,939                   07/686,084                   08/25/92
5,141,950                   07/583,264                   08/25/92
5,141,952                   07/716,950                   08/25/92
5,141,953                   07/497,378                   08/25/92
5,141,962                   07/516,045                   08/25/92
5,141,975                   07/730,132                   08/25/92
5,141,984                   07/233,240                   08/25/92
5,141,988                   07/565,629                   08/25/92
5,141,991                   07/533,830                   08/25/92
5,141,994                   07/432,443                   08/25/92
5,141,998                   07/644,650                   08/25/92
5,142,009                   07/209,713                   08/25/92
5,142,019                   07/770,397                   08/25/92
5,142,028                   07/377,121                   08/25/92
5,142,037                   07/808,227                   08/25/92
5,142,041                   07/673,673                   08/25/92
5,142,058                   07/627,793                   08/25/92
5,142,062                   07/726,337                   08/25/92
5,142,067                   07/790,011                   08/25/92
5,142,068                   07/574,633                   08/25/92
5,142,079                   07/625,490                   08/25/92
5,142,080                   07/788,156                   08/25/92
5,142,083                   07/730,142                   08/25/92
5,142,085                   07/743,859                   08/25/92
5,142,091                   07/690,939                   08/25/92
5,142,102                   07/623,153                   08/25/92
5,142,104                   07/747,795                   08/25/92
5,142,111                   07/584,825                   08/25/92
5,142,113                   07/603,366                   08/25/92
5,142,129                   07/432,435                   08/25/92
5,142,132                   07/609,888                   08/25/92
5,142,133                   07/689,350                   08/25/92
5,142,153                   07/698,961                   08/25/92
5,142,155                   07/667,701                   08/25/92
5,142,160                   07/575,590                   08/25/92
5,142,163                   07/091,022                   08/25/92
5,142,164                   07/499,593                   08/25/92
5,142,166                   07/778,313                   08/25/92
5,142,168                   07/630,061                   08/25/92
5,142,169                   07/573,193                   08/25/92
5,142,170                   07/676,689                   08/25/92
5,142,174                   07/670,264                   08/25/92
5,142,188                   07/685,382                   08/25/92
5,142,196                   07/667,868                   08/25/92
5,142,213                   07/686,185                   08/25/92
5,142,222                   07/789,814                   08/25/92
5,142,225                   07/606,056                   08/25/92
5,142,231                   07/436,519                   08/25/92
5,142,234                   07/783,607                   08/25/92
5,142,235                   07/643,093                   08/25/92
5,142,236                   07/596,444                   08/25/92
5,142,240                   07/631,502                   08/25/92
5,142,245                   07/685,267                   08/25/92
5,142,250                   07/819,699                   08/25/92
5,142,254                   07/575,570                   08/25/92
5,142,257                   07/487,532                   08/25/92
5,142,258                   07/625,456                   08/25/92
5,142,265                   07/668,176                   08/25/92
5,142,267                   07/522,120                   08/25/92
5,142,274                   07/674,258                   08/25/92
5,142,287                   07/552,629                   08/25/92
5,142,294                   07/745,676                   08/25/92
5,142,295                   07/728,487                   08/25/92
5,142,305                   07/663,991                   08/25/92
5,142,322                   07/177,920                   08/25/92
5,142,327                   07/682,782                   08/25/92
5,142,329                   07/663,156                   08/25/92
5,142,333                   07/640,169                   08/25/92
5,142,334                   07/576,586                   08/25/92
5,142,335                   07/794,575                   08/25/92
5,142,337                   07/594,513                   08/25/92
5,142,342                   07/568,018                   08/25/92
5,142,353                   07/685,164                   08/25/92
5,142,354                   07/629,498                   08/25/92
5,142,362                   07/658,215                   08/25/92
5,142,364                   07/646,010                   08/25/92
5,142,373                   07/622,683                   08/25/92
5,142,381                   07/501,044                   08/25/92
5,142,397                   07/728,776                   08/25/92
5,142,400                   07/706,195                   08/25/92
5,142,407                   07/456,164                   08/25/92
5,142,417                   07/620,731                   08/25/92
5,142,418                   07/386,797                   08/25/92
5,142,424                   07/540,725                   08/25/92
5,142,425                   07/564,935                   08/25/92
5,142,426                   07/542,288                   08/25/92
5,142,431                   07/463,089                   08/25/92
5,142,440                   07/646,610                   08/25/92
5,142,441                   07/314,079                   08/25/92
5,142,447                   07/428,380                   08/25/92
5,142,456                   07/703,938                   08/25/92
5,142,461                   07/655,325                   08/25/92
5,142,464                   07/727,440                   08/25/92
5,142,466                   07/762,772                   08/25/92
5,142,467                   07/789,328                   08/25/92
5,142,468                   07/701,487                   08/25/92
5,142,471                   07/504,923                   08/25/92
5,142,472                   07/401,006                   08/25/92
5,142,475                   07/391,283                   08/25/92
5,142,479                   07/549,171                   08/25/92
5,142,484                   07/452,788                   08/25/92
5,142,486                   07/607,984                   08/25/92
5,142,489                   07/636,457                   08/25/92
5,142,501                   07/714,463                   08/25/92
5,142,504                   07/685,402                   08/25/92
5,142,510                   07/723,656                   08/25/92
5,142,513                   07/510,703                   08/25/92
5,142,543                   07/439,356                   08/25/92
5,142,549                   07/402,475                   08/25/92
5,142,554                   07/607,989                   08/25/92
5,142,559                   07/522,222                   08/25/92
5,142,566                   07/625,812                   08/25/92
5,142,580                   07/680,035                   08/25/92
5,142,581                   07/447,667                   08/25/92
5,142,582                   07/511,768                   08/25/92
5,142,592                   07/629,259                   08/25/92
5,142,597                   07/866,283                   08/25/92
5,142,604                   07/673,590                   08/25/92
5,142,609                   07/566,372                   08/25/92
5,142,617                   07/263,294                   08/25/92
5,142,619                   07/752,882                   08/25/92
5,142,632                   07/349,730                   08/25/92
5,142,641                   07/657,380                   08/25/92
5,142,645                   07/701,394                   08/25/92
5,142,652                   07/738,900                   08/25/92
5,142,664                   07/445,532                   08/25/92
5,142,670                   07/224,845                   08/25/92
5,142,673                   07/455,664                   08/25/92
5,142,674                   07/593,325                   08/25/92
5,142,678                   07/289,991                   08/25/92
5,142,682                   07/644,691                   08/25/92
5,142,685                   07/351,084                   08/25/92
5,142,686                   07/424,776                   08/25/92
5,142,700                   07/572,562                   08/25/92

                   PATENTS WHICH EXPIRED ON August 27, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,548,847                   08/352,359                   08/27/96
5,548,849                   08/430,844                   08/27/96
5,548,859                   08/454,544                   08/27/96
5,548,860                   08/251,722                   08/27/96
5,548,861                   08/201,328                   08/27/96
5,548,871                   08/350,687                   08/27/96
5,548,875                   08/375,491                   08/27/96
5,548,882                   08/167,933                   08/27/96
5,548,895                   08/469,654                   08/27/96
5,548,897                   08/407,214                   08/27/96
5,548,904                   08/432,598                   08/27/96
5,548,907                   08/113,350                   08/27/96
5,548,910                   08/354,223                   08/27/96
5,548,911                   08/195,283                   08/27/96
5,548,918                   08/453,371                   08/27/96
5,548,919                   08/498,754                   08/27/96
5,548,920                   08/429,347                   08/27/96
5,548,923                   08/464,409                   08/27/96
5,548,924                   08/458,884                   08/27/96
5,548,928                   08/568,803                   08/27/96
5,548,931                   08/367,870                   08/27/96
5,548,934                   08/301,248                   08/27/96
5,548,938                   08/196,172                   08/27/96
5,548,940                   08/345,775                   08/27/96
5,548,941                   08/274,983                   08/27/96
5,548,950                   08/350,673                   08/27/96
5,548,952                   08/293,454                   08/27/96
5,548,958                   08/421,250                   08/27/96
5,548,959                   08/413,175                   08/27/96
5,548,960                   08/346,491                   08/27/96
5,548,961                   08/351,835                   08/27/96
5,548,962                   08/396,686                   08/27/96
5,548,972                   08/339,088                   08/27/96
5,548,979                   08/376,572                   08/27/96
5,548,981                   08/332,024                   08/27/96
5,548,982                   08/276,647                   08/27/96
5,548,983                   08/494,547                   08/27/96
5,548,984                   08/286,239                   08/27/96
5,548,987                   08/301,692                   08/27/96
5,548,988                   08/339,769                   08/27/96
5,548,991                   08/401,111                   08/27/96
5,548,994                   08/486,881                   08/27/96
5,548,997                   08/232,570                   08/27/96
5,548,999                   07/991,434                   08/27/96
5,549,000                   08/488,697                   08/27/96
5,549,004                   08/396,013                   08/27/96
5,549,022                   08/421,218                   08/27/96
5,549,025                   08/288,225                   08/27/96
5,549,030                   08/402,093                   08/27/96
5,549,031                   08/459,169                   08/27/96
5,549,036                   08/518,992                   08/27/96
5,549,037                   08/546,534                   08/27/96
5,549,047                   08/435,498                   08/27/96
5,549,048                   08/137,026                   08/27/96
5,549,055                   08/380,659                   08/27/96
5,549,057                   08/320,914                   08/27/96
5,549,063                   08/498,051                   08/27/96
5,549,065                   08/411,237                   08/27/96
5,549,067                   08/501,818                   08/27/96
5,549,069                   08/165,811                   08/27/96
5,549,072                   08/370,796                   08/27/96
5,549,080                   08/430,725                   08/27/96
5,549,093                   08/365,146                   08/27/96
5,549,110                   08/206,073                   08/27/96
5,549,124                   07/206,888                   08/27/96
5,549,126                   08/371,151                   08/27/96
5,549,130                   08/395,070                   08/27/96
5,549,145                   08/491,451                   08/27/96
5,549,147                   08/061,828                   08/27/96
5,549,148                   08/286,503                   08/27/96
5,549,151                   08/353,845                   08/27/96
5,549,160                   08/249,944                   08/27/96
5,549,163                   08/420,050                   08/27/96
5,549,167                   08/570,484                   08/27/96
5,549,174                   08/311,136                   08/27/96
5,549,178                   08/275,372                   08/27/96
5,549,199                   08/539,361                   08/27/96
5,549,202                   08/403,847                   08/27/96
5,549,203                   08/368,662                   08/27/96
5,549,206                   08/347,505                   08/27/96
5,549,208                   08/390,217                   08/27/96
5,549,224                   08/408,735                   08/27/96
5,549,225                   08/528,463                   08/27/96
5,549,230                   08/446,017                   08/27/96
5,549,232                   08/201,460                   08/27/96
5,549,248                   08/369,083                   08/27/96
5,549,252                   08/277,250                   08/27/96
5,549,259                   08/197,849                   08/27/96
5,549,260                   08/380,005                   08/27/96
5,549,261                   08/332,802                   08/27/96
5,549,264                   08/270,645                   08/27/96
5,549,266                   08/231,150                   08/27/96
5,549,267                   08/179,610                   08/27/96
5,549,275                   08/522,142                   08/27/96
5,549,279                   08/559,131                   08/27/96
5,549,280                   08/467,990                   08/27/96
5,549,284                   08/339,212                   08/27/96
5,549,286                   08/173,653                   08/27/96
5,549,300                   08/350,891                   08/27/96
5,549,302                   08/491,065                   08/27/96
5,549,308                   08/375,382                   08/27/96
5,549,316                   08/515,836                   08/27/96
5,549,319                   08/295,943                   08/27/96
5,549,322                   08/365,925                   08/27/96
5,549,332                   08/001,792                   08/27/96
5,549,333                   08/303,937                   08/27/96
5,549,338                   08/565,418                   08/27/96
5,549,339                   08/193,186                   08/27/96
5,549,341                   08/369,873                   08/27/96
5,549,342                   08/382,965                   08/27/96
5,549,345                   08/490,419                   08/27/96
5,549,347                   08/467,916                   08/27/96
5,549,353                   08/520,173                   08/27/96
5,549,357                   08/353,803                   08/27/96
5,549,360                   08/291,519                   08/27/96
5,549,375                   08/337,889                   08/27/96
5,549,378                   08/324,110                   08/27/96
5,549,383                   07/782,577                   08/27/96
5,549,385                   08/354,780                   08/27/96
5,549,392                   08/433,534                   08/27/96
5,549,398                   08/285,382                   08/27/96
5,549,408                   08/390,177                   08/27/96
5,549,410                   08/314,783                   08/27/96
5,549,414                   08/360,808                   08/27/96
5,549,416                   08/333,327                   08/27/96
5,549,418                   08/240,117                   08/27/96
5,549,419                   08/326,500                   08/27/96
5,549,429                   08/434,675                   08/27/96
5,549,437                   08/353,434                   08/27/96
5,549,453                   08/455,191                   08/27/96
5,549,459                   08/322,085                   08/27/96
5,549,461                   08/505,462                   08/27/96
5,549,469                   08/374,164                   08/27/96
5,549,472                   08/458,131                   08/27/96
5,549,473                   08/437,976                   08/27/96
5,549,475                   08/352,507                   08/27/96
5,549,478                   08/376,030                   08/27/96
5,549,484                   08/368,338                   08/27/96
5,549,486                   08/497,971                   08/27/96
5,549,494                   08/491,384                   08/27/96
5,549,496                   08/311,108                   08/27/96
5,549,500                   08/201,360                   08/27/96
5,549,501                   08/478,791                   08/27/96
5,549,506                   08/369,469                   08/27/96
5,549,508                   08/409,302                   08/27/96
5,549,515                   08/496,089                   08/27/96
5,549,516                   08/291,432                   08/27/96
5,549,517                   08/432,052                   08/27/96
5,549,522                   08/582,520                   08/27/96
5,549,523                   08/231,803                   08/27/96
5,549,525                   08/351,442                   08/27/96
5,549,527                   08/555,514                   08/27/96
5,549,528                   08/434,202                   08/27/96
5,549,529                   08/533,340                   08/27/96
5,549,531                   08/395,796                   08/27/96
5,549,532                   08/389,131                   08/27/96
5,549,535                   08/394,948                   08/27/96
5,549,538                   08/174,410                   08/27/96
5,549,543                   08/457,012                   08/27/96
5,549,548                   08/255,992                   08/27/96
5,549,551                   08/361,825                   08/27/96
5,549,557                   08/286,841                   08/27/96
5,549,562                   08/190,019                   08/27/96
5,549,564                   08/071,888                   08/27/96
5,549,567                   08/325,779                   08/27/96
5,549,570                   08/235,642                   08/27/96
5,549,579                   08/506,607                   08/27/96
5,549,582                   08/269,073                   08/27/96
5,549,586                   08/335,474                   08/27/96
5,549,614                   08/364,013                   08/27/96
5,549,621                   08/399,958                   08/27/96
5,549,622                   08/402,105                   08/27/96
5,549,629                   08/208,479                   08/27/96
5,549,638                   08/245,301                   08/27/96
5,549,639                   08/307,957                   08/27/96
5,549,640                   08/488,723                   08/27/96
5,549,643                   08/322,189                   08/27/96
5,549,671                   08/365,202                   08/27/96
5,549,677                   08/299,639                   08/27/96
5,549,681                   08/427,410                   08/27/96
5,549,687                   08/285,499                   08/27/96
5,549,690                   08/202,910                   08/27/96
5,549,699                   08/327,661                   08/27/96
5,549,701                   08/412,615                   08/27/96
5,549,703                   08/389,914                   08/27/96
5,549,713                   08/418,072                   08/27/96
5,549,721                   08/348,481                   08/27/96
5,549,734                   08/400,751                   08/27/96
5,549,739                   08/486,583                   08/27/96
5,549,760                   08/348,371                   08/27/96
5,549,764                   08/426,518                   08/27/96
5,549,794                   08/248,364                   08/27/96
5,549,799                   07/999,608                   08/27/96
5,549,801                   08/533,464                   08/27/96
5,549,812                   08/407,323                   08/27/96
5,549,822                   08/372,189                   08/27/96
5,549,824                   08/397,753                   08/27/96
5,549,825                   08/331,797                   08/27/96
5,549,829                   08/367,176                   08/27/96
5,549,849                   08/406,650                   08/27/96
5,549,853                   08/254,789                   08/27/96
5,549,856                   08/221,005                   08/27/96
5,549,862                   08/509,244                   08/27/96
5,549,870                   08/345,548                   08/27/96
5,549,871                   08/542,713                   08/27/96
5,549,882                   08/346,988                   08/27/96
5,549,888                   08/189,364                   08/27/96
5,549,889                   08/074,877                   08/27/96
5,549,916                   08/475,143                   08/27/96
5,549,923                   08/219,983                   08/27/96
5,549,937                   08/389,446                   08/27/96
5,549,938                   08/335,061                   08/27/96
5,549,939                   08/201,978                   08/27/96
5,549,942                   08/488,964                   08/27/96
5,549,944                   08/500,812                   08/27/96
5,549,950                   08/406,630                   08/27/96
5,549,951                   08/301,879                   08/27/96
5,549,954                   08/296,910                   08/27/96
5,549,957                   08/082,222                   08/27/96
5,549,958                   08/374,098                   08/27/96
5,549,965                   08/236,671                   08/27/96
5,549,971                   08/287,947                   08/27/96
5,549,992                   08/320,863                   08/27/96
5,549,996                   08/404,085                   08/27/96
5,550,000                   08/417,886                   08/27/96
5,550,004                   08/292,899                   08/27/96
5,550,016                   08/157,235                   08/27/96
5,550,018                   08/246,373                   08/27/96
5,550,034                   08/015,203                   08/27/96
5,550,047                   08/199,510                   08/27/96
5,550,062                   08/144,876                   08/27/96
5,550,082                   08/414,031                   08/27/96
5,550,103                   08/108,929                   08/27/96
5,550,110                   08/269,257                   08/27/96
5,550,119                   08/403,353                   08/27/96
5,550,125                   08/382,589                   08/27/96
5,550,126                   08/380,467                   08/27/96
5,550,132                   08/264,026                   08/27/96
5,550,135                   08/433,910                   08/27/96
5,550,140                   08/391,240                   08/27/96
5,550,141                   08/522,450                   08/27/96
5,550,143                   08/226,633                   08/27/96
5,550,155                   08/323,100                   08/27/96
5,550,161                   08/144,664                   08/27/96
5,550,163                   08/285,079                   08/27/96
5,550,166                   08/407,430                   08/27/96
5,550,171                   08/455,218                   08/27/96
5,550,175                   08/435,980                   08/27/96
5,550,179                   08/049,008                   08/27/96
5,550,198                   08/356,540                   08/27/96
5,550,220                   08/359,942                   08/27/96
5,550,222                   08/355,850                   08/27/96
5,550,231                   08/077,305                   08/27/96
5,550,233                   08/263,298                   08/27/96
5,550,234                   08/496,496                   08/27/96
5,550,239                   08/336,022                   08/27/96
5,550,240                   08/351,449                   08/27/96
5,550,249                   08/200,545                   08/27/96
5,550,276                   08/483,624                   08/27/96
5,550,279                   08/431,461                   08/27/96
5,550,284                   08/292,052                   08/27/96
5,550,288                   08/335,806                   08/27/96
5,550,292                   08/428,114                   08/27/96
5,550,300                   08/338,725                   08/27/96
5,550,301                   08/398,024                   08/27/96
5,550,311                   08/388,067                   08/27/96
5,550,314                   08/395,614                   08/27/96
5,550,316                   08/011,060                   08/27/96
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