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 7, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

4,802,247                       06/894,093                       02/07/89
4,802,270                       07/140,666                       02/07/89
4,802,275                       07/163,831                       02/07/89
4,802,290                       07/071,441                       02/07/89
4,802,292                       07/012,453                       02/07/89
4,802,297                       07/109,497                       02/07/89
4,802,299                       07/084,024                       02/07/89
4,802,306                       07/171,984                       02/07/89
4,802,307                       07/175,923                       02/07/89
4,802,327                       06/903,697                       02/07/89
4,802,336                       06/319,467                       02/07/89
4,802,339                       07/078,950                       02/07/89
4,802,340                       07/113,704                       02/07/89
4,802,347                       07/137,601                       02/07/89
4,802,363                       07/080,808                       02/07/89
4,802,365                       07/158,605                       02/07/89
4,802,373                       06/922,743                       02/07/89
4,802,375                       07/112,508                       02/07/89
4,802,387                       06/934,102                       02/07/89
4,802,389                       06/687,659                       02/07/89
4,802,394                       07/154,374                       02/07/89
4,802,396                       07/196,811                       02/07/89
4,802,409                       06/934,036                       02/07/89
4,802,418                       07/008,340                       02/07/89
4,802,432                       07/063,462                       02/07/89
4,802,450                       07/017,264                       02/07/89
4,802,464                       07/033,992                       02/07/89
4,802,480                       07/087,321                       02/07/89
4,802,490                       07/005,007                       02/07/89
4,802,496                       07/051,962                       02/07/89
4,802,498                       07/069,700                       02/07/89
4,802,508                       07/176,361                       02/07/89
4,802,518                       07/096,625                       02/07/89
4,802,521                       06/932,469                       02/07/89
4,802,525                       06/938,571                       02/07/89
4,802,529                       07/143,709                       02/07/89
4,802,533                       07/197,950                       02/07/89
4,802,534                       07/092,938                       02/07/89
4,802,536                       07/146,963                       02/07/89
4,802,539                       07/141,829                       02/07/89
4,802,546                       07/144,972                       02/07/89
4,802,555                       06/558,694                       02/07/89
4,802,564                       07/090,254                       02/07/89
4,802,566                       07/082,377                       02/07/89
4,802,567                       07/010,855                       02/07/89
4,802,575                       07/054,200                       02/07/89
4,802,580                       07/134,041                       02/07/89
4,802,586                       06/654,705                       02/07/89
4,802,591                       07/167,690                       02/07/89
4,802,602                       07/130,071                       02/07/89
4,802,603                       07/121,640                       02/07/89
4,802,606                       07/119,820                       02/07/89
4,802,623                       07/060,039                       02/07/89
4,802,636                       06/342,965                       02/07/89
4,802,642                       06/918,229                       02/07/89
4,802,655                       07/158,274                       02/07/89
4,802,658                       07/134,598                       02/07/89
4,802,664                       07/000,843                       02/07/89
4,802,672                       07/066,077                       02/07/89
4,802,679                       07/140,066                       02/07/89
4,802,683                       07/082,905                       02/07/89
4,802,687                       07/172,960                       02/07/89
4,802,690                       07/020,490                       02/07/89
4,802,706                       06/870,354                       02/07/89
4,802,707                       07/167,274                       02/07/89
4,802,713                       07/094,554                       02/07/89
4,802,725                       06/411,723                       02/07/89
4,802,745                       07/053,656                       02/07/89
4,802,748                       07/132,779                       02/07/89
4,802,751                       07/093,175                       02/07/89
4,802,755                       07/034,511                       02/07/89
4,802,756                       07/012,627                       02/07/89
4,802,758                       07/043,639                       02/07/89
4,802,760                       07/143,401                       02/07/89
4,802,772                       07/152,284                       02/07/89
4,802,776                       07/091,756                       02/07/89
4,802,779                       07/118,383                       02/07/89
4,802,796                       07/104,590                       02/07/89
4,802,806                       06/926,499                       02/07/89
4,802,820                       06/764,067                       02/07/89
4,802,826                       06/392,029                       02/07/89
4,802,828                       06/947,066                       02/07/89
4,802,835                       07/117,217                       02/07/89
4,802,840                       07/138,843                       02/07/89
4,802,844                       07/146,195                       02/07/89
4,802,850                       07/041,834                       02/07/89
4,802,857                       07/124,289                       02/07/89
4,802,860                       07/162,577                       02/07/89
4,802,864                       07/184,725                       02/07/89
4,802,866                       07/083,070                       02/07/89
4,802,867                       07/121,309                       02/07/89
4,802,876                       07/100,300                       02/07/89
4,802,891                       07/171,152                       02/07/89
4,802,902                       07/060,354                       02/07/89
4,802,907                       07/094,092                       02/07/89
4,802,925                       07/183,290                       02/07/89
4,802,934                       06/927,109                       02/07/89
4,802,947                       06/887,004                       02/07/89
4,802,953                       07/106,506                       02/07/89
4,802,954                       07/203,631                       02/07/89
4,802,956                       06/933,035                       02/07/89
4,802,957                       06/850,527                       02/07/89
4,802,959                       07/062,637                       02/07/89
4,802,962                       07/149,927                       02/07/89
4,802,965                       06/809,582                       02/07/89
4,802,969                       07/187,668                       02/07/89
4,802,976                       07/140,564                       02/07/89
4,802,978                       07/019,945                       02/07/89
4,802,990                       07/079,810                       02/07/89
4,802,999                       07/163,245                       02/07/89
4,803,000                       06/875,444                       02/07/89
4,803,005                       06/893,640                       02/07/89
4,803,007                       07/109,486                       02/07/89
4,803,008                       07/099,922                       02/07/89
4,803,010                       07/093,606                       02/07/89
4,803,020                       07/115,312                       02/07/89
4,803,024                       06/847,902                       02/07/89
4,803,031                       06/590,153                       02/07/89
4,803,041                       06/927,757                       02/07/89
4,803,044                       07/116,606                       02/07/89
4,803,047                       07/054,960                       02/07/89
4,803,049                       06/681,487                       02/07/89
4,803,060                       06/936,731                       02/07/89
4,803,066                       07/027,861                       02/07/89
4,803,079                       06/811,575                       02/07/89
4,803,080                       06/811,742                       02/07/89
4,803,085                       07/047,504                       02/07/89
4,803,103                       06/945,186                       02/07/89
4,803,130                       07/087,260                       02/07/89
4,803,138                       07/168,046                       02/07/89
4,803,140                       07/110,088                       02/07/89
4,803,143                       06/936,312                       02/07/89
4,803,153                       06/841,096                       02/07/89
4,803,155                       06/834,198                       02/07/89
4,803,158                       06/922,178                       02/07/89
4,803,167                       06/363,545                       02/07/89
4,803,173                       07/067,032                       02/07/89
4,803,177                       07/135,879                       02/07/89
4,803,180                       07/056,990                       02/07/89
4,803,181                       07/026,799                       02/07/89
4,803,187                       07/076,570                       02/07/89
4,803,194                       06/909,267                       02/07/89
4,803,195                       07/157,422                       02/07/89
4,803,206                       07/164,594                       02/07/89
4,803,209                       07/090,342                       02/07/89
4,803,212                       06/581,291                       02/07/89
4,803,221                       07/090,569                       02/07/89
4,803,222                       07/090,696                       02/07/89
4,803,224                       06/857,878                       02/07/89
4,803,226                       07/141,199                       02/07/89
4,803,227                       07/070,207                       02/07/89
4,803,234                       07/008,220                       02/07/89
4,803,239                       07/095,908                       02/07/89
4,803,240                       07/129,166                       02/07/89
4,803,243                       07/030,074                       02/07/89
4,803,246                       06/849,649                       02/07/89
4,803,262                       06/935,167                       02/07/89
4,803,264                       06/934,981                       02/07/89
4,803,273                       06/939,694                       02/07/89
4,803,274                       07/105,298                       02/07/89
4,803,278                       06/916,131                       02/07/89
4,803,280                       06/883,189                       02/07/89
4,803,287                       07/023,253                       02/07/89
4,803,305                       07/125,965                       02/07/89
4,803,308                       07/201,337                       02/07/89
4,803,310                       07/045,386                       02/07/89
4,803,311                       07/147,999                       02/07/89
4,803,315                       07/121,058                       02/07/89
4,803,321                       07/121,206                       02/07/89
4,803,324                       07/134,551                       02/07/89
4,803,328                       07/085,406                       02/07/89
4,803,338                       07/000,777                       02/07/89
4,803,340                       07/040,343                       02/07/89
4,803,345                       07/072,226                       02/07/89
4,803,360                       07/102,309                       02/07/89
4,803,362                       07/113,638                       02/07/89
4,803,365                       07/047,850                       02/07/89
4,803,375                       06/941,192                       02/07/89
4,803,392                       07/086,488                       02/07/89
4,803,398                       06/881,709                       02/07/89
4,803,401                       06/886,238                       02/07/89
4,803,402                       07/038,440                       02/07/89
4,803,406                       06/795,268                       02/07/89
4,803,413                       06/885,627                       02/07/89
4,803,420                       07/106,076                       02/07/89
4,803,421                       07/145,276                       02/07/89
4,803,424                       07/091,593                       02/07/89
4,803,426                       07/074,249                       02/07/89
4,803,428                       07/002,865                       02/07/89
4,803,429                       06/907,667                       02/07/89
4,803,431                       07/075,947                       02/07/89
4,803,434                       07/169,929                       02/07/89
4,803,435                       06/920,104                       02/07/89
4,803,436                       07/097,028                       02/07/89
4,803,441                       07/024,028                       02/07/89
4,803,443                       07/177,738                       02/07/89
4,803,457                       07/019,669                       02/07/89
4,803,467                       07/159,209                       02/07/89
4,803,468                       07/071,808                       02/07/89
4,803,478                       06/831,715                       02/07/89
4,803,479                       07/111,245                       02/07/89
4,803,486                       07/159,487                       02/07/89
4,803,490                       06/665,275                       02/07/89
4,803,498                       07/072,464                       02/07/89
4,803,503                       07/125,896                       02/07/89
4,803,505                       07/091,987                       02/07/89
4,803,506                       07/143,789                       02/07/89
4,803,513                       07/007,897                       02/07/89
4,803,516                       07/066,555                       02/07/89
4,803,530                       06/830,868                       02/07/89
4,803,541                       07/178,847                       02/07/89
4,803,548                       07/127,144                       02/07/89
4,803,552                       06/937,494                       02/07/89
4,803,558                       06/929,622                       02/07/89
4,803,560                       07/012,721                       02/07/89
4,803,565                       07/226,548                       02/07/89
4,803,581                       07/027,088                       02/07/89
4,803,584                       07/042,340                       02/07/89
4,803,587                       07/038,671                       02/07/89
4,803,591                       07/008,688                       02/07/89
4,803,592                       07/146,132                       02/07/89
4,803,593                       07/105,610                       02/07/89
4,803,602                       07/108,012                       02/07/89
4,803,606                       07/073,110                       02/07/89
4,803,609                       07/191,822                       02/07/89
4,803,615                       07/059,167                       02/07/89
4,803,627                       07/017,592                       02/07/89
4,803,628                       06/891,317                       02/07/89
4,803,632                       06/861,560                       02/07/89
4,803,633                       07/129,374                       02/07/89
4,803,635                       06/927,382                       02/07/89
4,803,654                       06/747,095                       02/07/89
4,803,668                       07/199,942                       02/07/89
4,803,673                       07/213,785                       02/07/89
4,803,692                       06/903,376                       02/07/89
4,803,698                       06/776,906                       02/07/89
4,803,700                       06/872,775                       02/07/89
4,803,704                       07/070,191                       02/07/89
4,803,710                       07/022,587                       02/07/89
4,803,712                       07/004,880                       02/07/89
4,803,714                       06/648,707                       02/07/89
4,803,715                       06/918,162                       02/07/89
4,803,717                       06/757,868                       02/07/89
4,803,737                       07/104,525                       02/07/89

                   PATENTS WHICH EXPIRED ON February 2, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,182,815                       07/709,500                       02/02/93
5,182,821                       07/765,364                       02/02/93
5,182,824                       07/928,065                       02/02/93
5,182,828                       07/665,341                       02/02/93
5,182,830                       07/799,422                       02/02/93
5,182,834                       07/869,387                       02/02/93
5,182,841                       07/817,632                       02/02/93
5,182,842                       07/851,011                       02/02/93
5,182,852                       07/789,359                       02/02/93
5,182,853                       07/786,088                       02/02/93
5,182,856                       07/809,142                       02/02/93
5,182,857                       07/679,077                       02/02/93
5,182,860                       07/754,060                       02/02/93
5,182,864                       07/757,936                       02/02/93
5,182,869                       07/780,196                       02/02/93
5,182,872                       07/774,324                       02/02/93
5,182,873                       07/467,675                       02/02/93
5,182,874                       07/685,538                       02/02/93
5,182,876                       07/712,478                       02/02/93
5,182,881                       07/748,130                       02/02/93
5,182,886                       07/635,601                       02/02/93
5,182,897                       07/821,025                       02/02/93
5,182,899                       07/817,358                       02/02/93
5,182,900                       07/863,506                       02/02/93
5,182,902                       07/694,403                       02/02/93
5,182,903                       07/836,761                       02/02/93
5,182,909                       07/743,130                       02/02/93
5,182,910                       07/714,389                       02/02/93
5,182,911                       07/785,493                       02/02/93
5,182,913                       07/646,183                       02/02/93
5,182,927                       07/737,383                       02/02/93
5,182,930                       07/673,385                       02/02/93
5,182,935                       07/880,542                       02/02/93
5,182,939                       07/678,092                       02/02/93
5,182,953                       07/552,107                       02/02/93
5,182,959                       07/806,341                       02/02/93
5,182,964                       07/647,506                       02/02/93
5,182,965                       07/787,036                       02/02/93
5,182,986                       07/672,668                       02/02/93
5,182,999                       07/775,904                       02/02/93
5,183,001                       07/748,640                       02/02/93
5,183,002                       07/835,353                       02/02/93
5,183,006                       07/826,489                       02/02/93
5,183,007                       07/524,171                       02/02/93
5,183,016                       07/861,745                       02/02/93
5,183,017                       07/836,760                       02/02/93
5,183,027                       07/800,608                       02/02/93
5,183,028                       07/804,243                       02/02/93
5,183,032                       07/800,440                       02/02/93
5,183,034                       07/813,133                       02/02/93
5,183,035                       07/796,552                       02/02/93
5,183,036                       07/408,653                       02/02/93
5,183,047                       07/697,892                       02/02/93
5,183,059                       07/821,799                       02/02/93
5,183,062                       07/873,529                       02/02/93
5,183,069                       07/820,103                       02/02/93
5,183,079                       07/548,142                       02/02/93
5,183,085                       07/767,014                       02/02/93
5,183,087                       07/713,402                       02/02/93
5,183,089                       07/827,127                       02/02/93
5,183,092                       07/761,697                       02/02/93
5,183,096                       07/493,933                       02/02/93
5,183,113                       07/514,424                       02/02/93
5,183,121                       07/778,381                       02/02/93
5,183,124                       07/578,461                       02/02/93
5,183,127                       07/799,895                       02/02/93
5,183,129                       07/716,085                       02/02/93
5,183,130                       07/557,078                       02/02/93
5,183,141                       07/807,830                       02/02/93
5,183,144                       07/832,885                       02/02/93
5,183,147                       07/790,371                       02/02/93
5,183,152                       07/576,912                       02/02/93
5,183,155                       07/630,526                       02/02/93
5,183,157                       07/769,381                       02/02/93
5,183,158                       07/914,657                       02/02/93
5,183,160                       07/605,225                       02/02/93
5,183,162                       07/698,712                       02/02/93
5,183,168                       07/577,524                       02/02/93
5,183,169                       07/715,497                       02/02/93
5,183,177                       07/890,624                       02/02/93
5,183,179                       07/937,555                       02/02/93
5,183,188                       07/606,903                       02/02/93
5,183,189                       07/770,406                       02/02/93
5,183,193                       07/740,713                       02/02/93
5,183,195                       07/837,122                       02/02/93
5,183,198                       07/793,959                       02/02/93
5,183,199                       07/823,754                       02/02/93
5,183,205                       07/791,558                       02/02/93
5,183,210                       07/587,950                       02/02/93
5,183,215                       07/477,949                       02/02/93
5,183,218                       07/654,543                       02/02/93
5,183,220                       07/639,578                       02/02/93
5,183,222                       07/743,783                       02/02/93
5,183,230                       07/824,912                       02/02/93
5,183,234                       07/794,385                       02/02/93
5,183,237                       07/813,894                       02/02/93
5,183,260                       07/828,511                       02/02/93
5,183,261                       07/808,096                       02/02/93
5,183,262                       07/681,052                       02/02/93
5,183,264                       07/865,177                       02/02/93
5,183,266                       07/814,264                       02/02/93
5,183,267                       07/131,107                       02/02/93
5,183,272                       07/788,599                       02/02/93
5,183,276                       07/827,421                       02/02/93
5,183,277                       07/699,133                       02/02/93
5,183,280                       07/774,626                       02/02/93
5,183,287                       07/737,762                       02/02/93
5,183,288                       07/675,622                       02/02/93
5,183,289                       07/711,527                       02/02/93
5,183,291                       07/668,762                       02/02/93
5,183,294                       07/727,241                       02/02/93
5,183,300                       07/826,465                       02/02/93
5,183,310                       07/754,955                       02/02/93
5,183,311                       07/908,960                       02/02/93
5,183,314                       07/793,580                       02/02/93
5,183,315                       07/884,046                       02/02/93
5,183,316                       07/763,551                       02/02/93
5,183,324                       07/755,548                       02/02/93
5,183,336                       07/822,869                       02/02/93
5,183,337                       07/726,817                       02/02/93
5,183,344                       07/708,554                       02/02/93
5,183,349                       07/613,036                       02/02/93
5,183,362                       07/861,336                       02/02/93
5,183,366                       07/621,755                       02/02/93
5,183,367                       07/753,662                       02/02/93
5,183,369                       07/678,229                       02/02/93
5,183,373                       07/778,525                       02/02/93
5,183,375                       07/643,998                       02/02/93
5,183,383                       07/638,737                       02/02/93
5,183,390                       07/727,748                       02/02/93
5,183,393                       07/832,965                       02/02/93
5,183,397                       07/409,726                       02/02/93
5,183,398                       07/532,272                       02/02/93
5,183,405                       07/811,497                       02/02/93
5,183,411                       07/925,195                       02/02/93
5,183,413                       07/807,620                       02/02/93
5,183,421                       07/734,886                       02/02/93
5,183,423                       07/773,274                       02/02/93
5,183,431                       07/697,636                       02/02/93
5,183,434                       07/725,181                       02/02/93
5,183,435                       07/820,195                       02/02/93
5,183,440                       07/896,446                       02/02/93
5,183,442                       07/803,964                       02/02/93
5,183,443                       07/824,518                       02/02/93
5,183,444                       07/917,513                       02/02/93
5,183,445                       07/820,981                       02/02/93
5,183,446                       07/841,826                       02/02/93
5,183,447                       07/749,588                       02/02/93
5,183,448                       07/736,584                       02/02/93
5,183,451                       07/772,577                       02/02/93
5,183,456                       07/902,929                       02/02/93
5,183,458                       07/827,420                       02/02/93
5,183,469                       07/698,512                       02/02/93
5,183,475                       07/434,944                       02/02/93
5,183,481                       07/712,360                       02/02/93
5,183,506                       07/846,096                       02/02/93
5,183,507                       07/602,965                       02/02/93
5,183,510                       07/443,317                       02/02/93
5,183,513                       07/698,157                       02/02/93
5,183,515                       07/860,992                       02/02/93
5,183,517                       07/759,130                       02/02/93
5,183,538                       07/632,721                       02/02/93
5,183,549                       07/470,954                       02/02/93
5,183,551                       07/466,442                       02/02/93
5,183,559                       07/759,795                       02/02/93
5,183,564                       07/802,533                       02/02/93
5,183,569                       07/808,442                       02/02/93
5,183,571                       07/653,653                       02/02/93
5,183,576                       07/742,829                       02/02/93
5,183,579                       07/660,938                       02/02/93
5,183,580                       07/618,443                       02/02/93
5,183,582                       07/891,063                       02/02/93
5,183,585                       07/705,567                       02/02/93
5,183,587                       07/454,988                       02/02/93
5,183,595                       07/807,012                       02/02/93
5,183,596                       07/806,646                       02/02/93
5,183,599                       07/700,270                       02/02/93
5,183,600                       07/732,662                       02/02/93
5,183,602                       07/408,634                       02/02/93
5,183,606                       07/688,927                       02/02/93
5,183,618                       07/158,925                       02/02/93
5,183,619                       07/698,008                       02/02/93
5,183,624                       07/774,229                       02/02/93
5,183,626                       07/372,494                       02/02/93
5,183,629                       07/735,251                       02/02/93
5,183,632                       07/845,194                       02/02/93
5,183,635                       07/465,120                       02/02/93
5,183,636                       07/723,943                       02/02/93
5,183,641                       07/578,420                       02/02/93
5,183,660                       07/745,496                       02/02/93
5,183,666                       07/606,162                       02/02/93
5,183,671                       07/531,924                       02/02/93
5,183,680                       07/742,538                       02/02/93
5,183,682                       07/415,095                       02/02/93
5,183,688                       07/638,701                       02/02/93
5,183,691                       07/431,459                       02/02/93
5,183,695                       07/894,473                       02/02/93
5,183,719                       07/738,520                       02/02/93
5,183,726                       07/654,445                       02/02/93
5,183,735                       07/633,361                       02/02/93
5,183,736                       07/502,325                       02/02/93
5,183,742                       07/349,950                       02/02/93
5,183,783                       07/811,958                       02/02/93
5,183,794                       07/641,907                       02/02/93
5,183,796                       07/641,904                       02/02/93
5,183,804                       07/370,182                       02/02/93
5,183,813                       07/838,391                       02/02/93
5,183,818                       07/750,362                       02/02/93
5,183,820                       07/691,814                       02/02/93
5,183,824                       07/829,507                       02/02/93
5,183,826                       07/587,812                       02/02/93
5,183,830                       07/686,127                       02/02/93
5,183,836                       07/784,096                       02/02/93
5,183,837                       07/821,046                       02/02/93
5,183,838                       07/724,777                       02/02/93
5,183,839                       07/760,306                       02/02/93
5,183,856                       07/659,504                       02/02/93
5,183,859                       07/433,201                       02/02/93
5,183,861                       07/355,709                       02/02/93
5,183,873                       07/779,748                       02/02/93
5,183,875                       07/630,063                       02/02/93
5,183,876                       07/651,693                       02/02/93
5,183,881                       07/748,604                       02/02/93
5,183,882                       07/656,824                       02/02/93
5,183,883                       07/766,791                       02/02/93
5,183,885                       07/779,012                       02/02/93
5,183,892                       07/621,236                       02/02/93
5,183,895                       07/836,257                       02/02/93
5,183,899                       07/560,759                       02/02/93
5,183,905                       07/870,748                       02/02/93
5,183,912                       07/832,152                       02/02/93
5,183,924                       07/782,195                       02/02/93
5,183,928                       07/163,196                       02/02/93
5,183,934                       07/859,961                       02/02/93
5,183,938                       07/901,620                       02/02/93
5,183,944                       07/798,159                       02/02/93
5,183,947                       07/900,999                       02/02/93
5,183,953                       07/817,782                       02/02/93
5,183,956                       07/618,562                       02/02/93
5,183,959                       07/561,450                       02/02/93
5,183,960                       07/722,528                       02/02/93
5,183,967                       07/777,144                       02/02/93
5,183,971                       07/633,172                       02/02/93
5,183,986                       07/772,797                       02/02/93
5,183,987                       07/777,526                       02/02/93
5,183,988                       07/514,644                       02/02/93
5,183,994                       07/605,114                       02/02/93
5,183,995                       07/789,047                       02/02/93
5,183,997                       07/762,012                       02/02/93
5,184,000                       07/269,607                       02/02/93
5,184,002                       07/735,669                       02/02/93
5,184,017                       07/746,939                       02/02/93
5,184,022                       07/658,678                       02/02/93
5,184,033                       07/763,018                       02/02/93
5,184,049                       07/711,301                       02/02/93
5,184,052                       07/668,515                       02/02/93
5,184,059                       07/760,413                       02/02/93
5,184,068                       07/845,744                       02/02/93
5,184,072                       07/762,381                       02/02/93
5,184,081                       07/671,452                       02/02/93
5,184,097                       07/655,604                       02/02/93
5,184,102                       07/730,929                       02/02/93
5,184,114                       07/495,006                       02/02/93
5,184,116                       07/590,914                       02/02/93
5,184,120                       07/680,474                       02/02/93
5,184,122                       07/648,590                       02/02/93
5,184,131                       07/540,591                       02/02/93
5,184,132                       07/788,493                       02/02/93
5,184,144                       07/587,411                       02/02/93
5,184,149                       07/777,128                       02/02/93
5,184,155                       07/611,620                       02/02/93
5,184,156                       07/789,994                       02/02/93
5,184,165                       07/711,837                       02/02/93
5,184,167                       07/810,826                       02/02/93
5,184,173                       07/779,158                       02/02/93
5,184,174                       07/794,290                       02/02/93
5,184,181                       07/561,910                       02/02/93
5,184,183                       07/824,109                       02/02/93
5,184,193                       07/293,218                       02/02/93
5,184,209                       07/526,849                       02/02/93
5,184,218                       07/725,563                       02/02/93
5,184,221                       07/783,826                       02/02/93
5,184,231                       07/035,042                       02/02/93
5,184,240                       07/671,363                       02/02/93
5,184,244                       07/771,838                       02/02/93
5,184,246                       07/660,542                       02/02/93
5,184,255                       07/003,761                       02/02/93
5,184,256                       07/540,925                       02/02/93
5,184,258                       07/712,834                       02/02/93
5,184,265                       07/713,621                       02/02/93
5,184,267                       07/603,162                       02/02/93
5,184,284                       07/754,137                       02/02/93
5,184,286                       07/853,474                       02/02/93
5,184,287                       07/895,843                       02/02/93
5,184,289                       07/731,826                       02/02/93
5,184,290                       07/853,066                       02/02/93
5,184,292                       07/583,516                       02/02/93
5,184,309                       07/496,219                       02/02/93
5,184,313                       07/531,040                       02/02/93
5,184,314                       07/738,559                       02/02/93
5,184,328                       07/846,005                       02/02/93
5,184,329                       07/723,391                       02/02/93
5,184,335                       07/700,882                       02/02/93
5,184,337                       07/716,878                       02/02/93

                   PATENTS WHICH EXPIRED ON February 4, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,598,582                       08/398,935                       02/04/97
5,598,583                       08/393,667                       02/04/97
5,598,586                       08/523,777                       02/04/97
5,598,587                       08/596,577                       02/04/97
5,598,588                       08/544,551                       02/04/97
5,598,591                       08/372,099                       02/04/97
5,598,596                       08/252,617                       02/04/97
5,598,602                       08/556,128                       02/04/97
5,598,604                       08/436,847                       02/04/97
5,598,609                       08/224,916                       02/04/97
5,598,611                       08/539,790                       02/04/97
5,598,612                       08/526,492                       02/04/97
5,598,629                       08/254,128                       02/04/97
5,598,636                       08/291,441                       02/04/97
5,598,637                       08/317,639                       02/04/97
5,598,641                       08/515,979                       02/04/97
5,598,645                       08/375,519                       02/04/97
5,598,650                       08/312,540                       02/04/97
5,598,651                       08/358,920                       02/04/97
5,598,653                       08/395,087                       02/04/97
5,598,656                       08/526,159                       02/04/97
5,598,661                       08/604,921                       02/04/97
5,598,662                       08/607,040                       02/04/97
5,598,664                       08/341,618                       02/04/97
5,598,672                       08/456,928                       02/04/97
5,598,673                       08/182,647                       02/04/97
5,598,679                       08/359,915                       02/04/97
5,598,686                       08/557,868                       02/04/97
5,598,693                       08/223,130                       02/04/97
5,598,699                       08/455,200                       02/04/97
5,598,702                       08/389,829                       02/04/97
5,598,708                       08/367,217                       02/04/97
5,598,710                       08/493,402                       02/04/97
5,598,714                       08/529,648                       02/04/97
5,598,723                       08/493,717                       02/04/97
5,598,725                       08/620,548                       02/04/97
5,598,727                       08/374,699                       02/04/97
5,598,742                       08/377,739                       02/04/97
5,598,744                       08/503,548                       02/04/97
5,598,746                       08/334,448                       02/04/97
5,598,752                       08/515,038                       02/04/97
5,598,753                       08/384,922                       02/04/97
5,598,754                       08/512,341                       02/04/97
5,598,764                       08/503,551                       02/04/97
5,598,766                       08/650,307                       02/04/97
5,598,767                       08/523,620                       02/04/97
5,598,791                       08/411,326                       02/04/97
5,598,792                       08/370,378                       02/04/97
5,598,797                       08/278,373                       02/04/97
5,598,798                       08/617,150                       02/04/97
5,598,811                       08/435,955                       02/04/97
5,598,815                       08/643,037                       02/04/97
5,598,816                       08/289,889                       02/04/97
5,598,832                       08/211,628                       02/04/97
5,598,833                       08/506,895                       02/04/97
5,598,853                       08/621,231                       02/04/97
5,598,854                       08/396,470                       02/04/97
5,598,862                       08/530,481                       02/04/97
5,598,879                       08/502,987                       02/04/97
5,598,880                       08/460,597                       02/04/97
5,598,883                       08/488,834                       02/04/97
5,598,892                       08/494,406                       02/04/97
5,598,907                       08/365,147                       02/04/97
5,598,910                       08/298,326                       02/04/97
5,598,920                       08/509,761                       02/04/97
5,598,921                       08/540,641                       02/04/97
5,598,922                       08/517,346                       02/04/97
5,598,924                       08/540,089                       02/04/97
5,598,926                       08/491,549                       02/04/97
5,598,938                       08/241,794                       02/04/97
5,598,942                       08/533,088                       02/04/97
5,598,945                       08/541,296                       02/04/97
5,598,953                       08/359,179                       02/04/97
5,598,954                       08/411,586                       02/04/97
5,598,955                       08/503,866                       02/04/97
5,598,957                       08/395,241                       02/04/97
5,598,961                       08/377,190                       02/04/97
5,598,963                       08/466,618                       02/04/97
5,598,967                       08/418,132                       02/04/97
5,598,971                       08/516,097                       02/04/97
5,598,982                       08/500,930                       02/04/97
5,598,985                       08/445,529                       02/04/97
5,598,996                       08/249,369                       02/04/97
5,598,998                       08/561,041                       02/04/97
5,599,002                       08/378,727                       02/04/97
5,599,005                       08/434,177                       02/04/97
5,599,006                       08/507,350                       02/04/97
5,599,010                       08/363,050                       02/04/97
5,599,018                       08/412,284                       02/04/97
5,599,021                       08/436,654                       02/04/97
5,599,022                       08/654,162                       02/04/97
5,599,024                       08/551,118                       02/04/97
5,599,028                       08/115,879                       02/04/97
5,599,031                       08/392,197                       02/04/97
5,599,037                       08/406,123                       02/04/97
5,599,042                       08/572,368                       02/04/97
5,599,043                       08/546,309                       02/04/97
5,599,048                       08/399,719                       02/04/97
5,599,049                       08/280,763                       02/04/97
5,599,050                       08/534,737                       02/04/97
5,599,051                       08/420,140                       02/04/97
5,599,052                       08/357,718                       02/04/97
5,599,055                       08/546,707                       02/04/97
5,599,058                       08/462,058                       02/04/97
5,599,060                       08/554,266                       02/04/97
5,599,063                       08/403,431                       02/04/97
5,599,066                       08/671,327                       02/04/97
5,599,074                       08/509,060                       02/04/97
5,599,083                       08/357,109                       02/04/97
5,599,089                       08/600,517                       02/04/97
5,599,092                       08/525,028                       02/04/97
5,599,093                       08/320,007                       02/04/97
5,599,095                       08/187,629                       02/04/97
5,599,103                       08/644,117                       02/04/97
5,599,107                       08/489,968                       02/04/97
5,599,109                       08/574,658                       02/04/97
5,599,122                       08/563,929                       02/04/97
5,599,123                       08/245,917                       02/04/97
5,599,126                       08/554,618                       02/04/97
5,599,128                       08/338,469                       02/04/97
5,599,133                       08/450,700                       02/04/97
5,599,138                       08/400,109                       02/04/97
5,599,140                       08/527,779                       02/04/97
5,599,148                       08/113,130                       02/04/97
5,599,152                       08/166,877                       02/04/97
5,599,153                       08/403,926                       02/04/97
5,599,155                       08/456,507                       02/04/97
5,599,163                       08/540,672                       02/04/97
5,599,169                       08/524,788                       02/04/97
5,599,176                       08/383,247                       02/04/97
5,599,184                       08/338,109                       02/04/97
5,599,188                       08/383,050                       02/04/97
5,599,191                       08/396,177                       02/04/97
5,599,196                       08/432,608                       02/04/97
5,599,198                       08/402,530                       02/04/97
5,599,199                       08/438,859                       02/04/97
5,599,202                       08/589,511                       02/04/97
5,599,208                       08/355,767                       02/04/97
5,599,216                       08/554,872                       02/04/97
5,599,219                       08/398,883                       02/04/97
5,599,220                       08/455,198                       02/04/97
5,599,221                       08/499,387                       02/04/97
5,599,224                       08/428,721                       02/04/97
5,599,227                       08/407,388                       02/04/97
5,599,235                       08/515,817                       02/04/97
5,599,237                       08/617,549                       02/04/97
5,599,245                       08/511,946                       02/04/97
5,599,254                       08/385,710                       02/04/97
5,599,255                       08/361,108                       02/04/97
5,599,256                       08/547,400                       02/04/97
5,599,257                       08/628,888                       02/04/97
5,599,260                       08/273,203                       02/04/97
5,599,261                       08/566,937                       02/04/97
5,599,278                       08/404,576                       02/04/97
5,599,282                       08/383,194                       02/04/97
5,599,303                       08/344,829                       02/04/97
5,599,306                       08/536,555                       02/04/97
5,599,331                       08/370,149                       02/04/97
5,599,351                       08/163,910                       02/04/97
5,599,355                       08/186,183                       02/04/97
5,599,360                       08/351,699                       02/04/97
5,599,363                       08/283,567                       02/04/97
5,599,367                       08/422,501                       02/04/97
5,599,369                       08/236,280                       02/04/97
5,599,372                       08/054,937                       02/04/97
5,599,373                       08/327,969                       02/04/97
5,599,376                       08/563,042                       02/04/97
5,599,391                       08/529,327                       02/04/97
5,599,398                       08/513,172                       02/04/97
5,599,399                       08/450,811                       02/04/97
5,599,401                       08/285,625                       02/04/97
5,599,431                       08/634,240                       02/04/97
5,599,441                       08/455,747                       02/04/97
5,599,450                       08/560,740                       02/04/97
5,599,455                       08/495,400                       02/04/97
5,599,483                       08/540,977                       02/04/97
5,599,485                       08/574,224                       02/04/97
5,599,489                       08/450,990                       02/04/97
5,599,491                       08/302,622                       02/04/97
5,599,494                       08/322,436                       02/04/97
5,599,503                       07/797,500                       02/04/97
5,599,505                       08/527,626                       02/04/97
5,599,510                       08/447,434                       02/04/97
5,599,520                       08/333,670                       02/04/97
5,599,534                       08/287,694                       02/04/97
5,599,541                       08/302,771                       02/04/97
5,599,549                       08/437,479                       02/04/97
5,599,582                       08/475,412                       02/04/97
5,599,587                       08/050,167                       02/04/97
5,599,593                       08/366,724                       02/04/97
5,599,610                       08/192,040                       02/04/97
5,599,634                       08/481,368                       02/04/97
5,599,674                       08/406,635                       02/04/97
5,599,698                       08/448,029                       02/04/97
5,599,702                       08/443,017                       02/04/97
5,599,708                       08/279,675                       02/04/97
5,599,737                       08/367,380                       02/04/97
5,599,748                       08/208,863                       02/04/97
5,599,768                       08/336,602                       02/04/97
5,599,776                       08/289,774                       02/04/97
5,599,784                       08/212,611                       02/04/97
5,599,787                       08/428,109                       02/04/97
5,599,788                       08/268,797                       02/04/97
5,599,795                       08/264,052                       02/04/97
5,599,800                       08/317,486                       02/04/97
5,599,810                       08/505,297                       02/04/97
5,599,812                       08/235,426                       02/04/97
5,599,813                       08/221,577                       02/04/97
5,599,817                       08/436,220                       02/04/97
5,599,835                       08/344,131                       02/04/97
5,599,847                       08/142,287                       02/04/97
5,599,867                       08/411,872                       02/04/97
5,599,877                       08/464,504                       02/04/97
5,599,883                       08/534,588                       02/04/97
5,599,890                       08/210,844                       02/04/97
5,599,912                       08/118,819                       02/04/97
5,599,920                       08/518,474                       02/04/97
5,599,939                       08/455,161                       02/04/97
5,599,952                       08/444,372                       02/04/97
5,599,959                       08/382,300                       02/04/97
5,599,960                       08/449,743                       02/04/97
5,599,965                       08/279,328                       02/04/97
5,599,966                       08/416,860                       02/04/97
5,599,975                       08/330,027                       02/04/97
5,599,979                       08/524,670                       02/04/97
5,599,982                       08/413,756                       02/04/97
5,599,986                       08/513,501                       02/04/97
5,599,989                       08/449,677                       02/04/97
5,599,992                       08/589,859                       02/04/97
5,600,003                       08/370,804                       02/04/97
5,600,024                       08/507,578                       02/04/97
5,600,027                       08/529,071                       02/04/97
5,600,042                       08/429,786                       02/04/97
5,600,045                       08/160,634                       02/04/97
5,600,055                       08/436,508                       02/04/97
5,600,057                       08/615,548                       02/04/97
5,600,062                       08/354,832                       02/04/97
5,600,079                       08/376,601                       02/04/97
5,600,084                       08/605,289                       02/04/97
5,600,086                       08/367,156                       02/04/97
5,600,090                       08/446,443                       02/04/97
5,600,092                       08/343,569                       02/04/97
5,600,098                       08/279,528                       02/04/97
5,600,100                       08/244,393                       02/04/97
5,600,104                       08/139,995                       02/04/97
5,600,110                       08/347,357                       02/04/97
5,600,113                       08/378,582                       02/04/97
5,600,114                       08/531,746                       02/04/97
5,600,120                       08/653,993                       02/04/97
5,600,130                       08/515,284                       02/04/97
5,600,142                       08/451,842                       02/04/97
5,600,171                       08/274,603                       02/04/97
5,600,172                       08/334,786                       02/04/97
5,600,188                       08/230,967                       02/04/97
5,600,191                       08/359,027                       02/04/97
5,600,195                       08/149,542                       02/04/97
5,600,199                       08/306,398                       02/04/97
5,600,204                       08/434,896                       02/04/97
5,600,241                       08/499,527                       02/04/97
5,600,250                       08/523,270                       02/04/97
5,600,251                       08/398,997                       02/04/97
5,600,259                       08/599,033                       02/04/97
5,600,281                       08/577,354                       02/04/97
5,600,303                       08/471,680                       02/04/97
5,600,305                       08/533,259                       02/04/97
5,600,309                       08/269,114                       02/04/97
5,600,310                       08/348,408                       02/04/97
5,600,314                       08/508,188                       02/04/97
5,600,331                       08/364,482                       02/04/97
5,600,335                       08/369,594                       02/04/97
5,600,340                       08/422,366                       02/04/97
5,600,361                       08/410,988                       02/04/97
5,600,362                       08/426,764                       02/04/97
5,600,402                       08/433,976                       02/04/97
5,600,415                       08/295,033                       02/04/97
5,600,434                       08/380,058                       02/04/97
5,600,437                       08/408,494                       02/04/97
5,600,440                       08/498,070                       02/04/97
5,600,452                       08/340,879                       02/04/97
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5,600,845                       08/281,357                       02/04/97