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 October 4, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                        Serial                        Issue
Number                        Number                         Date

4,774,734                   07/065,112                   10/04/88
4,774,749                   06/926,423                   10/04/88
4,774,755                   07/106,841                   10/04/88
4,774,757                   07/034,041                   10/04/88
4,774,758                   07/056,186                   10/04/88
4,774,762                   07/037,006                   10/04/88
4,774,766                   07/048,730                   10/04/88
4,774,768                   07/038,305                   10/04/88
4,774,770                   07/052,850                   10/04/88
4,774,771                   07/028,716                   10/04/88
4,774,793                   06/863,664                   10/04/88
4,774,801                   07/066,033                   10/04/88
4,774,812                   06/846,918                   10/04/88
4,774,818                   07/092,543                   10/04/88
4,774,823                   07/040,281                   10/04/88
4,774,828                   07/070,165                   10/04/88
4,774,831                   06/919,246                   10/04/88
4,774,838                   07/020,936                   10/04/88
4,774,840                   07/002,159                   10/04/88
4,774,864                   06/883,811                   10/04/88
4,774,868                   07/114,717                   10/04/88
4,774,874                   07/030,808                   10/04/88
4,774,880                   07/119,678                   10/04/88
4,774,912                   06/913,234                   10/04/88
4,774,920                   06/880,686                   10/04/88
4,774,921                   06/780,773                   10/04/88
4,774,922                   07/109,827                   10/04/88
4,774,924                   07/112,100                   10/04/88
4,774,925                   07/000,493                   10/04/88
4,774,929                   06/917,015                   10/04/88
4,774,933                   07/122,590                   10/04/88
4,774,934                   07/047,180                   10/04/88
4,774,952                   06/925,030                   10/04/88
4,774,966                   06/930,320                   10/04/88
4,774,979                   07/081,057                   10/04/88
4,774,993                   07/052,449                   10/04/88
4,774,996                   06/913,077                   10/04/88
4,775,016                   07/102,173                   10/04/88
4,775,020                   07/098,227                   10/04/88
4,775,022                   07/027,027                   10/04/88
4,775,024                   07/066,532                   10/04/88
4,775,030                   07/148,245                   10/04/88
4,775,034                   06/931,077                   10/04/88
4,775,039                   07/007,572                   10/04/88
4,775,042                   06/836,507                   10/04/88
4,775,043                   07/006,264                   10/04/88
4,775,047                   06/487,000                   10/04/88
4,775,048                   06/867,382                   10/04/88
4,775,052                   06/742,539                   10/04/88
4,775,055                   07/050,192                   10/04/88
4,775,059                   06/849,883                   10/04/88
4,775,073                   07/103,205                   10/04/88
4,775,083                   07/009,855                   10/04/88
4,775,084                   06/946,847                   10/04/88
4,775,086                   07/101,419                   10/04/88
4,775,089                   07/061,432                   10/04/88
4,775,090                   07/019,948                   10/04/88
4,775,099                   07/152,009                   10/04/88
4,775,102                   07/131,912                   10/04/88
4,775,108                   07/062,175                   10/04/88
4,775,111                   07/042,240                   10/04/88
4,775,113                   07/033,748                   10/04/88
4,775,115                   07/037,837                   10/04/88
4,775,124                   07/076,850                   10/04/88
4,775,136                   07/056,787                   10/04/88
4,775,137                   06/824,619                   10/04/88
4,775,138                   07/029,533                   10/04/88
4,775,147                   06/753,821                   10/04/88
4,775,156                   07/031,535                   10/04/88
4,775,157                   07/052,907                   10/04/88
4,775,172                   07/064,071                   10/04/88
4,775,182                   07/106,426                   10/04/88
4,775,184                   06/935,410                   10/04/88
4,775,185                   07/034,092                   10/04/88
4,775,189                   07/069,052                   10/04/88
4,775,191                   07/086,228                   10/04/88
4,775,199                   07/079,350                   10/04/88
4,775,205                   07/027,109                   10/04/88
4,775,211                   06/806,767                   10/04/88
4,775,213                   06/880,963                   10/04/88
4,775,218                   07/039,513                   10/04/88
4,775,250                   07/057,328                   10/04/88
4,775,257                   07/093,588                   10/04/88
4,775,270                   06/839,360                   10/04/88
4,775,289                   07/100,929                   10/04/88
4,775,306                   07/015,086                   10/04/88
4,775,316                   07/051,953                   10/04/88
4,775,318                   06/839,220                   10/04/88
4,775,322                   06/928,023                   10/04/88
4,775,323                   07/142,563                   10/04/88
4,775,324                   06/458,831                   10/04/88
4,775,327                   07/015,395                   10/04/88
4,775,329                   07/063,531                   10/04/88
4,775,345                   07/037,625                   10/04/88
4,775,352                   06/827,791                   10/04/88
4,775,353                   06/788,396                   10/04/88
4,775,358                   07/024,162                   10/04/88
4,775,359                   06/697,210                   10/04/88
4,775,369                   07/057,486                   10/04/88
4,775,388                   07/003,058                   10/04/88
4,775,394                   07/057,922                   10/04/88
4,775,398                   07/008,938                   10/04/88
4,775,414                   07/066,670                   10/04/88
4,775,421                   07/028,733                   10/04/88
4,775,428                   07/050,569                   10/04/88
4,775,430                   06/945,856                   10/04/88
4,775,443                   06/826,596                   10/04/88
4,775,447                   06/621,814                   10/04/88
4,775,455                   06/848,468                   10/04/88
4,775,457                   07/084,596                   10/04/88
4,775,470                   06/865,526                   10/04/88
4,775,477                   07/115,472                   10/04/88
4,775,480                   07/008,176                   10/04/88
4,775,489                   06/864,098                   10/04/88
4,775,490                   07/080,286                   10/04/88
4,775,491                   07/081,941                   10/04/88
4,775,492                   07/012,395                   10/04/88
4,775,495                   06/826,677                   10/04/88
4,775,503                   06/885,953                   10/04/88
4,775,512                   06/863,530                   10/04/88
4,775,518                   06/884,558                   10/04/88
4,775,522                   06/808,999                   10/04/88
4,775,523                   06/913,784                   10/04/88
4,775,541                   06/906,824                   10/04/88
4,775,543                   06/911,107                   10/04/88
4,775,546                   06/876,583                   10/04/88
4,775,556                   06/893,392                   10/04/88
4,775,563                   07/118,791                   10/04/88
4,775,565                   06/885,880                   10/04/88
4,775,570                   07/055,929                   10/04/88
4,775,571                   07/033,613                   10/04/88
4,775,580                   07/046,951                   10/04/88
4,775,584                   07/041,100                   10/04/88
4,775,588                   07/124,404                   10/04/88
4,775,593                   07/059,995                   10/04/88
4,775,597                   07/062,030                   10/04/88
4,775,608                   07/104,476                   10/04/88
4,775,614                   06/920,360                   10/04/88
4,775,615                   07/070,169                   10/04/88
4,775,635                   06/858,630                   10/04/88
4,775,644                   07/057,458                   10/04/88
4,775,646                   06/906,619                   10/04/88
4,775,647                   07/027,069                   10/04/88
4,775,651                   07/122,237                   10/04/88
4,775,665                   07/102,062                   10/04/88
4,775,672                   07/014,741                   10/04/88
4,775,683                   07/014,748                   10/04/88
4,775,686                   06/943,859                   10/04/88
4,775,688                   07/051,103                   10/04/88
4,775,689                   07/078,500                   10/04/88
4,775,704                   07/041,304                   10/04/88
4,775,706                   06/868,508                   10/04/88
4,775,708                   07/102,466                   10/04/88
4,775,711                   07/033,240                   10/04/88
4,775,716                   06/862,085                   10/04/88
4,775,721                   07/041,386                   10/04/88
4,775,723                   07/117,451                   10/04/88
4,775,725                   07/033,861                   10/04/88
4,775,737                   07/022,918                   10/04/88
4,775,739                   07/055,352                   10/04/88
4,775,752                   07/099,032                   10/04/88
4,775,767                   07/077,980                   10/04/88
4,775,769                   07/060,557                   10/04/88
4,775,772                   07/006,032                   10/04/88
4,775,775                   07/062,903                   10/04/88
4,775,777                   07/139,979                   10/04/88
4,775,779                   07/023,396                   10/04/88
4,775,783                   06/890,609                   10/04/88
4,775,787                   07/037,359                   10/04/88
4,775,795                   07/013,983                   10/04/88
4,775,797                   06/930,805                   10/04/88
4,775,799                   07/111,950                   10/04/88
4,775,804                   07/113,797                   10/04/88
4,775,807                   07/066,928                   10/04/88
4,775,812                   07/048,830                   10/04/88
4,775,816                   07/118,446                   10/04/88
4,775,817                   07/082,026                   10/04/88
4,775,823                   06/947,394                   10/04/88
4,775,825                   07/064,557                   10/04/88
4,775,837                   07/058,293                   10/04/88
4,775,839                   07/010,980                   10/04/88
4,775,846                   07/097,169                   10/04/88
4,775,847                   06/939,822                   10/04/88
4,775,849                   07/137,745                   10/04/88
4,775,850                   07/027,279                   10/04/88
4,775,856                   07/079,688                   10/04/88
4,775,858                   06/771,245                   10/04/88
4,775,863                   06/932,733                   10/04/88
4,775,866                   06/863,939                   10/04/88
4,775,867                   06/753,188                   10/04/88
4,775,872                   07/146,769                   10/04/88
4,775,880                   06/943,705                   10/04/88
4,775,886                   06/641,784                   10/04/88
4,775,897                   06/867,091                   10/04/88
4,775,903                   06/919,099                   10/04/88
4,775,910                   06/841,258                   10/04/88
4,775,929                   06/917,940                   10/04/88
4,775,938                   06/791,898                   10/04/88
4,775,942                   06/806,650                   10/04/88
4,775,943                   06/788,230                   10/04/88
4,775,944                   06/771,587                   10/04/88
4,775,951                   06/935,095                   10/04/88
4,775,953                   06/944,565                   10/04/88
4,775,955                   07/134,676                   10/04/88
4,775,966                   06/890,326                   10/04/88
4,775,970                   06/905,390                   10/04/88
4,775,983                   07/102,515                   10/04/88
4,775,985                   07/034,849                   10/04/88
4,775,986                   07/012,973                   10/04/88
4,775,989                   06/878,582                   10/04/88
4,776,010                   06/809,178                   10/04/88
4,776,011                   06/545,079                   10/04/88
4,776,016                   06/800,324                   10/04/88
4,776,017                   06/857,838                   10/04/88
4,776,025                   06/900,514                   10/04/88
4,776,036                   07/119,868                   10/04/88
4,776,037                   07/082,719                   10/04/88
4,776,040                   07/085,268                   10/04/88

                  PATENTS WHICH EXPIRED ON September 29, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,150,475                   07/625,074                   09/29/92
5,150,478                   07/601,806                   09/29/92
5,150,484                   07/566,132                   09/29/92
5,150,489                   07/660,885                   09/29/92
5,150,491                   07/623,420                   09/29/92
5,150,492                   07/652,628                   09/29/92
5,150,494                   07/684,265                   09/29/92
5,150,498                   07/628,493                   09/29/92
5,150,502                   07/615,258                   09/29/92
5,150,505                   07/612,888                   09/29/92
5,150,519                   07/685,401                   09/29/92
5,150,524                   07/743,610                   09/29/92
5,150,525                   07/672,574                   09/29/92
5,150,537                   07/724,031                   09/29/92
5,150,546                   07/801,427                   09/29/92
5,150,548                   07/724,853                   09/29/92
5,150,559                   07/772,474                   09/29/92
5,150,563                   07/765,430                   09/29/92
5,150,568                   07/834,986                   09/29/92
5,150,576                   07/614,708                   09/29/92
5,150,577                   07/713,970                   09/29/92
5,150,582                   07/648,645                   09/29/92
5,150,583                   07/834,089                   09/29/92
5,150,601                   07/631,553                   09/29/92
5,150,607                   07/742,291                   09/29/92
5,150,612                   07/598,161                   09/29/92
5,150,614                   07/719,733                   09/29/92
5,150,616                   07/575,526                   09/29/92
5,150,617                   07/574,404                   09/29/92
5,150,631                   07/759,666                   09/29/92
5,150,632                   07/722,250                   09/29/92
5,150,636                   07/721,767                   09/29/92
5,150,637                   07/663,053                   09/29/92
5,150,643                   07/602,119                   09/29/92
5,150,651                   07/712,570                   09/29/92
5,150,655                   07/689,327                   09/29/92
5,150,661                   07/530,639                   09/29/92
5,150,671                   07/784,765                   09/29/92
5,150,672                   07/846,045                   09/29/92
5,150,675                   07/798,753                   09/29/92
5,150,678                   07/552,180                   09/29/92
5,150,685                   07/758,894                   09/29/92
5,150,688                   07/687,926                   09/29/92
5,150,689                   07/758,911                   09/29/92
5,150,691                   07/824,624                   09/29/92
5,150,693                   07/734,765                   09/29/92
5,150,695                   07/681,818                   09/29/92
5,150,696                   07/796,185                   09/29/92
5,150,704                   07/355,103                   09/29/92
5,150,714                   07/698,723                   09/29/92
5,150,718                   07/836,632                   09/29/92
5,150,725                   07/654,465                   09/29/92
5,150,726                   07/591,423                   09/29/92
5,150,727                   07/617,693                   09/29/92
5,150,728                   07/748,743                   09/29/92
5,150,731                   07/634,398                   09/29/92
5,150,737                   07/528,292                   09/29/92
5,150,741                   07/631,331                   09/29/92
5,150,751                   07/736,840                   09/29/92
5,150,757                   07/695,520                   09/29/92
5,150,758                   07/598,691                   09/29/92
5,150,762                   07/691,703                   09/29/92
5,150,771                   07/522,210                   09/29/92
5,150,780                   07/676,203                   09/29/92
5,150,791                   07/652,691                   09/29/92
5,150,792                   07/695,947                   09/29/92
5,150,794                   07/756,781                   09/29/92
5,150,795                   07/730,986                   09/29/92
5,150,796                   07/732,036                   09/29/92
5,150,797                   07/725,518                   09/29/92
5,150,800                   07/635,390                   09/29/92
5,150,808                   07/602,862                   09/29/92
5,150,818                   07/649,698                   09/29/92
5,150,825                   07/639,587                   09/29/92
5,150,829                   07/630,465                   09/29/92
5,150,830                   07/658,268                   09/29/92
5,150,834                   07/652,598                   09/29/92
5,150,835                   07/594,131                   09/29/92
5,150,837                   07/542,935                   09/29/92
5,150,843                   07/639,214                   09/29/92
5,150,846                   07/548,095                   09/29/92
5,150,847                   07/609,589                   09/29/92
5,150,849                   07/609,752                   09/29/92
5,150,851                   07/653,853                   09/29/92
5,150,865                   07/451,662                   09/29/92
5,150,871                   07/826,369                   09/29/92
5,150,873                   07/701,106                   09/29/92
5,150,875                   07/735,149                   09/29/92
5,150,876                   07/698,906                   09/29/92
5,150,883                   07/634,124                   09/29/92
5,150,889                   07/779,302                   09/29/92
5,150,903                   07/851,006                   09/29/92
5,150,911                   07/588,066                   09/29/92
5,150,912                   07/736,856                   09/29/92
5,150,918                   07/694,207                   09/29/92
5,150,921                   07/744,353                   09/29/92
5,150,926                   07/665,405                   09/29/92
5,150,935                   07/612,588                   09/29/92
5,150,938                   07/697,572                   09/29/92
5,150,941                   07/795,027                   09/29/92
5,150,943                   07/835,529                   09/29/92
5,150,953                   07/747,005                   09/29/92
5,150,961                   07/741,784                   09/29/92
5,150,967                   07/784,631                   09/29/92
5,150,970                   07/763,553                   09/29/92
5,150,976                   07/615,197                   09/29/92
5,150,978                   07/736,712                   09/29/92
5,150,980                   07/778,444                   09/29/92
5,150,985                   07/597,991                   09/29/92
5,150,988                   07/654,006                   09/29/92
5,150,989                   07/727,495                   09/29/92
5,150,990                   07/606,094                   09/29/92
5,150,992                   07/589,396                   09/29/92
5,150,994                   07/763,576                   09/29/92
5,151,005                   07/579,161                   09/29/92
5,151,007                   07/657,817                   09/29/92
5,151,011                   07/841,858                   09/29/92
5,151,016                   07/802,512                   09/29/92
5,151,018                   07/560,104                   09/29/92
5,151,035                   07/741,958                   09/29/92
5,151,039                   07/693,446                   09/29/92
5,151,040                   07/693,231                   09/29/92
5,151,041                   07/781,570                   09/29/92
5,151,046                   07/766,869                   09/29/92
5,151,047                   07/742,772                   09/29/92
5,151,049                   07/728,410                   09/29/92
5,151,050                   07/768,125                   09/29/92
5,151,063                   07/592,131                   09/29/92
5,151,076                   07/720,846                   09/29/92
5,151,077                   07/738,343                   09/29/92
5,151,078                   07/816,875                   09/29/92
5,151,081                   07/666,370                   09/29/92
5,151,095                   07/440,665                   09/29/92
5,151,096                   07/676,307                   09/29/92
5,151,108                   07/680,142                   09/29/92
5,151,109                   07/274,748                   09/29/92
5,151,113                   07/692,742                   09/29/92
5,151,124                   07/532,598                   09/29/92
5,151,126                   07/565,924                   09/29/92
5,151,127                   07/617,783                   09/29/92
5,151,129                   07/676,402                   09/29/92
5,151,130                   07/644,727                   09/29/92
5,151,131                   07/750,151                   09/29/92
5,151,133                   07/639,182                   09/29/92
5,151,140                   07/450,781                   09/29/92
5,151,145                   07/456,589                   09/29/92
5,151,156                   07/780,632                   09/29/92
5,151,157                   07/738,675                   09/29/92
5,151,160                   07/864,229                   09/29/92
5,151,163                   07/708,254                   09/29/92
5,151,169                   07/802,792                   09/29/92
5,151,174                   07/668,964                   09/29/92
5,151,177                   07/521,396                   09/29/92
5,151,179                   07/871,140                   09/29/92
5,151,183                   07/749,097                   09/29/92
5,151,184                   07/613,335                   09/29/92
5,151,190                   07/813,783                   09/29/92
5,151,193                   07/613,861                   09/29/92
5,151,198                   07/581,339                   09/29/92
5,151,199                   07/550,456                   09/29/92
5,151,201                   07/638,049                   09/29/92
5,151,205                   07/698,870                   09/29/92
5,151,212                   07/496,608                   09/29/92
5,151,217                   07/673,310                   09/29/92
5,151,221                   07/316,774                   09/29/92
5,151,226                   07/627,601                   09/29/92
5,151,241                   07/703,922                   09/29/92
5,151,243                   07/795,996                   09/29/92
5,151,245                   07/721,416                   09/29/92
5,151,258                   07/708,135                   09/29/92
5,151,262                   07/652,156                   09/29/92
5,151,266                   07/291,420                   09/29/92
5,151,275                   07/704,199                   09/29/92
5,151,281                   07/491,838                   09/29/92
5,151,288                   07/671,026                   09/29/92
5,151,290                   07/807,023                   09/29/92
5,151,292                   07/818,420                   09/29/92
5,151,293                   07/750,116                   09/29/92
5,151,294                   07/795,283                   09/29/92
5,151,297                   07/499,230                   09/29/92
5,151,302                   07/716,904                   09/29/92
5,151,304                   07/644,063                   09/29/92
5,151,308                   07/609,250                   09/29/92
5,151,326                   07/495,560                   09/29/92
5,151,328                   07/755,870                   09/29/92
5,151,332                   07/627,005                   09/29/92
5,151,335                   07/834,731                   09/29/92
5,151,337                   07/543,309                   09/29/92
5,151,339                   07/702,155                   09/29/92
5,151,349                   07/473,168                   09/29/92
5,151,358                   07/537,461                   09/29/92
5,151,368                   07/639,966                   09/29/92
5,151,370                   07/596,942                   09/29/92
5,151,383                   07/307,154                   09/29/92
5,151,385                   07/252,144                   09/29/92
5,151,390                   07/732,997                   09/29/92
5,151,397                   07/808,785                   09/29/92
5,151,400                   07/554,298                   09/29/92
5,151,410                   07/832,205                   09/29/92
5,151,412                   07/359,662                   09/29/92
5,151,416                   07/691,178                   09/29/92
5,151,417                   07/550,365                   09/29/92
5,151,424                   07/756,673                   09/29/92
5,151,427                   07/619,272                   09/29/92
5,151,430                   07/745,659                   09/29/92
5,151,432                   07/629,823                   09/29/92
5,151,436                   07/571,101                   09/29/92
5,151,439                   07/742,409                   09/29/92
5,151,445                   07/638,709                   09/29/92
5,151,446                   07/676,873                   09/29/92
5,151,447                   07/533,566                   09/29/92
5,151,450                   07/659,754                   09/29/92
5,151,451                   07/706,819                   09/29/92
5,151,454                   07/815,622                   09/29/92
5,151,461                   07/618,451                   09/29/92
5,151,466                   07/500,550                   09/29/92
5,151,471                   07/601,900                   09/29/92
5,151,473                   07/609,680                   09/29/92
5,151,477                   07/796,184                   09/29/92
5,151,485                   07/785,380                   09/29/92
5,151,493                   07/582,653                   09/29/92
5,151,495                   07/609,141                   09/29/92
5,151,497                   07/729,415                   09/29/92
5,151,498                   07/515,517                   09/29/92
5,151,511                   07/148,110                   09/29/92
5,151,517                   07/619,189                   09/29/92
5,151,521                   07/714,423                   09/29/92
5,151,524                   07/553,519                   09/29/92
5,151,529                   07/596,580                   09/29/92
5,151,530                   07/765,610                   09/29/92
5,151,538                   07/464,124                   09/29/92
5,151,540                   06/935,461                   09/29/92
5,151,547                   07/664,198                   09/29/92
5,151,560                   07/754,884                   09/29/92
5,151,569                   07/703,729                   09/29/92
5,151,570                   07/793,813                   09/29/92
5,151,571                   07/692,233                   09/29/92
5,151,576                   07/741,906                   09/29/92
5,151,579                   07/528,743                   09/29/92
5,151,588                   07/807,632                   09/29/92
5,151,589                   07/627,460                   09/29/92
5,151,590                   07/748,320                   09/29/92
5,151,595                   07/598,266                   09/29/92
5,151,601                   07/656,959                   09/29/92
5,151,617                   07/665,085                   09/29/92
5,151,634                   07/779,858                   09/29/92
5,151,641                   07/563,209                   09/29/92
5,151,646                   07/673,558                   09/29/92
5,151,648                   07/557,123                   09/29/92
5,151,651                   07/728,275                   09/29/92
5,151,654                   07/215,642                   09/29/92
5,151,655                   07/569,100                   09/29/92
5,151,659                   07/515,419                   09/29/92
5,151,664                   07/633,950                   09/29/92
5,151,669                   07/586,113                   09/29/92
5,151,673                   07/736,846                   09/29/92
5,151,678                   07/519,127                   09/29/92
5,151,679                   07/831,661                   09/29/92
5,151,685                   07/668,234                   09/29/92
5,151,691                   07/606,013                   09/29/92
5,151,692                   07/517,483                   09/29/92
5,151,702                   07/734,003                   09/29/92
5,151,705                   07/656,276                   09/29/92
5,151,709                   07/419,551                   09/29/92
5,151,721                   07/670,613                   09/29/92
5,151,733                   07/759,891                   09/29/92
5,151,740                   07/691,403                   09/29/92
5,151,742                   07/611,294                   09/29/92
5,151,745                   07/755,466                   09/29/92
5,151,746                   07/677,899                   09/29/92
5,151,751                   07/553,823                   09/29/92
5,151,753                   07/595,182                   09/29/92
5,151,770                   07/616,366                   09/29/92
5,151,773                   07/676,389                   09/29/92
5,151,775                   07/772,753                   09/29/92
5,151,778                   07/763,953                   09/29/92
5,151,779                   07/530,760                   09/29/92
5,151,791                   07/587,006                   09/29/92
5,151,797                   07/465,362                   09/29/92
5,151,802                   07/707,564                   09/29/92
5,151,804                   07/535,809                   09/29/92
5,151,815                   07/633,625                   09/29/92
5,151,821                   07/604,089                   09/29/92
5,151,825                   07/762,372                   09/29/92
5,151,826                   07/668,814                   09/29/92
5,151,831                   07/513,236                   09/29/92
5,151,835                   07/623,444                   09/29/92
5,151,838                   07/409,667                   09/29/92
5,151,839                   07/625,240                   09/29/92
5,151,843                   07/447,666                   09/29/92
5,151,847                   07/677,587                   09/29/92
5,151,856                   07/400,689                   09/29/92
5,151,868                   07/472,816                   09/29/92
5,151,869                   07/481,406                   09/29/92
5,151,873                   07/583,859                   09/29/92
5,151,876                   07/389,142                   09/29/92
5,151,882                   07/630,866                   09/29/92
5,151,883                   07/673,407                   09/29/92
5,151,893                   07/530,795                   09/29/92
5,151,897                   07/651,570                   09/29/92
5,151,916                   07/474,043                   09/29/92
5,151,923                   07/371,822                   09/29/92
5,151,928                   07/747,332                   09/29/92
5,151,937                   07/551,485                   09/29/92
5,151,939                   07/496,711                   09/29/92
5,151,940                   07/622,285                   09/29/92
5,151,949                   07/594,130                   09/29/92
5,151,963                   07/665,553                   09/29/92
5,151,968                   07/562,604                   09/29/92
5,151,971                   07/775,653                   09/29/92
5,151,972                   07/668,730                   09/29/92
5,151,974                   07/079,046                   09/29/92
5,151,980                   07/837,607                   09/29/92
5,151,982                   07/329,210                   09/29/92
5,151,992                   07/591,269                   09/29/92
5,151,993                   07/321,399                   09/29/92
5,152,000                   07/478,082                   09/29/92
5,152,011                   07/540,130                   09/29/92
5,152,012                   07/515,629                   09/29/92

                   PATENTS WHICH EXPIRED ON October 1, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,560,041                   08/438,791                   10/01/96
5,560,042                   08/556,166                   10/01/96
5,560,043                   08/421,934                   10/01/96
5,560,045                   08/204,946                   10/01/96
5,560,046                   08/218,628                   10/01/96
5,560,051                   08/383,436                   10/01/96
5,560,053                   08/336,765                   10/01/96
5,560,055                   08/437,631                   10/01/96
5,560,056                   08/379,143                   10/01/96
5,560,062                   08/398,964                   10/01/96
5,560,064                   08/359,728                   10/01/96
5,560,066                   08/439,293                   10/01/96
5,560,067                   08/543,402                   10/01/96
5,560,070                   08/335,255                   10/01/96
5,560,072                   08/243,572                   10/01/96
5,560,075                   08/394,598                   10/01/96
5,560,077                   08/344,870                   10/01/96
5,560,079                   08/313,199                   10/01/96
5,560,080                   08/362,770                   10/01/96
5,560,081                   08/567,594                   10/01/96
5,560,092                   08/407,613                   10/01/96
5,560,097                   08/405,656                   10/01/96
5,560,098                   08/374,568                   10/01/96
5,560,106                   08/149,273                   10/01/96
5,560,109                   08/343,365                   10/01/96
5,560,113                   08/451,916                   10/01/96
5,560,124                   08/244,888                   10/01/96
5,560,125                   08/353,119                   10/01/96
5,560,127                   08/383,457                   10/01/96
5,560,130                   08/420,774                   10/01/96
5,560,131                   08/369,137                   10/01/96
5,560,132                   08/421,417                   10/01/96
5,560,133                   08/423,737                   10/01/96
5,560,136                   08/401,241                   10/01/96
5,560,137                   08/251,407                   10/01/96
5,560,140                   08/136,239                   10/01/96
5,560,146                   08/247,339                   10/01/96
5,560,148                   08/297,424                   10/01/96
5,560,149                   08/327,635                   10/01/96
5,560,156                   08/509,574                   10/01/96
5,560,167                   08/248,670                   10/01/96
5,560,169                   08/311,853                   10/01/96
5,560,170                   08/258,423                   10/01/96
5,560,182                   08/411,143                   10/01/96
5,560,204                   08/374,550                   10/01/96
5,560,205                   08/360,858                   10/01/96
5,560,215                   08/430,483                   10/01/96
5,560,228                   08/381,844                   10/01/96
5,560,232                   08/423,137                   10/01/96
5,560,235                   08/342,260                   10/01/96
5,560,239                   08/320,684                   10/01/96
5,560,240                   08/404,766                   10/01/96
5,560,242                   08/291,026                   10/01/96
5,560,243                   08/339,679                   10/01/96
5,560,246                   08/387,835                   10/01/96
5,560,248                   08/559,684                   10/01/96
5,560,250                   08/399,743                   10/01/96
5,560,260                   08/390,664                   10/01/96
5,560,261                   08/422,330                   10/01/96
5,560,264                   08/346,197                   10/01/96
5,560,266                   08/197,606                   10/01/96
5,560,273                   08/257,722                   10/01/96
5,560,275                   08/407,927                   10/01/96
5,560,287                   08/330,973                   10/01/96
5,560,288                   08/401,199                   10/01/96
5,560,291                   08/525,014                   10/01/96
5,560,294                   08/373,977                   10/01/96
5,560,295                   08/014,284                   10/01/96
5,560,297                   08/525,279                   10/01/96
5,560,301                   08/383,236                   10/01/96
5,560,305                   08/356,087                   10/01/96
5,560,310                   08/481,410                   10/01/96
5,560,315                   08/502,378                   10/01/96
5,560,318                   08/363,913                   10/01/96
5,560,319                   08/405,698                   10/01/96
5,560,321                   08/499,223                   10/01/96
5,560,323                   08/349,970                   10/01/96
5,560,324                   08/384,098                   10/01/96
5,560,325                   08/475,633                   10/01/96
5,560,327                   08/317,237                   10/01/96
5,560,338                   08/560,201                   10/01/96
5,560,349                   08/375,672                   10/01/96
5,560,351                   08/319,543                   10/01/96
5,560,357                   08/379,994                   10/01/96
5,560,367                   08/290,588                   10/01/96
5,560,379                   08/289,631                   10/01/96
5,560,380                   08/324,308                   10/01/96
5,560,381                   08/536,090                   10/01/96
5,560,383                   08/351,953                   10/01/96
5,560,389                   08/422,914                   10/01/96
5,560,390                   08/302,364                   10/01/96
5,560,391                   08/529,561                   10/01/96
5,560,395                   08/314,394                   10/01/96
5,560,400                   08/431,748                   10/01/96
5,560,404                   08/399,523                   10/01/96
5,560,410                   08/321,399                   10/01/96
5,560,413                   08/478,545                   10/01/96
5,560,416                   08/327,416                   10/01/96
5,560,419                   08/355,239                   10/01/96
5,560,430                   08/544,550                   10/01/96
5,560,432                   08/508,445                   10/01/96
5,560,449                   08/533,544                   10/01/96
5,560,458                   08/184,543                   10/01/96
5,560,467                   08/211,549                   10/01/96
5,560,469                   08/506,697                   10/01/96
5,560,472                   08/449,026                   10/01/96
5,560,473                   08/336,677                   10/01/96
5,560,476                   08/399,229                   10/01/96
5,560,480                   08/336,201                   10/01/96
5,560,485                   08/419,183                   10/01/96
5,560,491                   08/530,304                   10/01/96
5,560,492                   08/568,250                   10/01/96
5,560,493                   08/403,454                   10/01/96
5,560,494                   08/543,492                   10/01/96
5,560,495                   08/392,765                   10/01/96
5,560,498                   08/299,442                   10/01/96
5,560,500                   08/446,057                   10/01/96
5,560,502                   08/349,086                   10/01/96
5,560,513                   08/578,466                   10/01/96
5,560,515                   08/387,557                   10/01/96
5,560,518                   08/284,573                   10/01/96
5,560,519                   08/179,185                   10/01/96
5,560,520                   08/512,226                   10/01/96
5,560,522                   08/429,268                   10/01/96
5,560,524                   08/358,260                   10/01/96
5,560,525                   08/245,637                   10/01/96
5,560,526                   08/399,035                   10/01/96
5,560,527                   08/042,697                   10/01/96
5,560,536                   08/389,130                   10/01/96
5,560,542                   08/340,044                   10/01/96
5,560,548                   08/333,849                   10/01/96
5,560,560                   08/318,999                   10/01/96
5,560,564                   08/507,583                   10/01/96
5,560,574                   08/328,460                   10/01/96
5,560,576                   08/394,617                   10/01/96
5,560,579                   08/452,710                   10/01/96
5,560,583                   08/104,061                   10/01/96
5,560,586                   08/442,164                   10/01/96
5,560,602                   08/393,343                   10/01/96
5,560,605                   08/460,658                   10/01/96
5,560,606                   08/607,320                   10/01/96
5,560,607                   08/507,998                   10/01/96
5,560,609                   08/592,970                   10/01/96
5,560,612                   08/512,882                   10/01/96
5,560,615                   08/338,672                   10/01/96
5,560,617                   08/389,018                   10/01/96
5,560,619                   08/458,895                   10/01/96
5,560,625                   08/383,934                   10/01/96
5,560,626                   08/442,370                   10/01/96
5,560,627                   08/152,514                   10/01/96
5,560,631                   08/459,745                   10/01/96
5,560,632                   08/330,263                   10/01/96
5,560,634                   08/274,273                   10/01/96
5,560,637                   08/256,365                   10/01/96
5,560,662                   08/174,961                   10/01/96
5,560,665                   08/525,396                   10/01/96
5,560,666                   08/434,375                   10/01/96
5,560,667                   08/375,337                   10/01/96
5,560,668                   08/534,626                   10/01/96
5,560,670                   08/308,688                   10/01/96
5,560,674                   08/483,838                   10/01/96
5,560,676                   08/370,405                   10/01/96
5,560,678                   08/407,374                   10/01/96
5,560,680                   08/493,656                   10/01/96
5,560,684                   08/403,715                   10/01/96
5,560,685                   08/305,969                   10/01/96
5,560,696                   08/524,626                   10/01/96
5,560,702                   08/566,671                   10/01/96
5,560,714                   08/519,610                   10/01/96
5,560,731                   08/238,830                   10/01/96
5,560,733                   08/461,437                   10/01/96
5,560,747                   08/369,071                   10/01/96
5,560,748                   08/273,389                   10/01/96
5,560,749                   08/468,591                   10/01/96
5,560,755                   08/460,615                   10/01/96
5,560,772                   08/339,178                   10/01/96
5,560,779                   08/090,842                   10/01/96
5,560,791                   08/329,862                   10/01/96
5,560,793                   08/510,940                   10/01/96
5,560,808                   08/391,583                   10/01/96
5,560,814                   08/454,156                   10/01/96
5,560,818                   08/305,691                   10/01/96
5,560,821                   08/275,191                   10/01/96
5,560,832                   08/438,131                   10/01/96
5,560,847                   08/313,084                   10/01/96
5,560,850                   08/542,931                   10/01/96
5,560,861                   08/348,333                   10/01/96
5,560,872                   08/444,335                   10/01/96
5,560,877                   08/505,635                   10/01/96
5,560,887                   08/438,401                   10/01/96
5,560,892                   08/425,296                   10/01/96
5,560,894                   08/351,746                   10/01/96
5,560,902                   08/419,800                   10/01/96
5,560,905                   08/242,491                   10/01/96
5,560,906                   08/410,976                   10/01/96
5,560,913                   08/379,407                   10/01/96
5,560,916                   08/383,429                   10/01/96
5,560,918                   08/437,480                   10/01/96
5,560,919                   08/244,278                   10/01/96
5,560,922                   08/461,098                   10/01/96
5,560,925                   08/316,848                   10/01/96
5,560,937                   08/296,644                   10/01/96
5,560,940                   08/375,575                   10/01/96
5,560,944                   08/314,062                   10/01/96
5,560,950                   08/455,682                   10/01/96
5,560,953                   08/455,933                   10/01/96
5,560,962                   08/204,263                   10/01/96
5,560,970                   08/275,284                   10/01/96
5,560,977                   08/259,994                   10/01/96
5,560,993                   08/389,052                   10/01/96
5,561,000                   08/465,110                   10/01/96
5,561,011                   08/292,962                   10/01/96
5,561,022                   08/433,608                   10/01/96
5,561,030                   08/235,215                   10/01/96
5,561,045                   08/177,732                   10/01/96
5,561,057                   08/309,434                   10/01/96
5,561,066                   08/433,552                   10/01/96
5,561,085                   08/359,128                   10/01/96
5,561,100                   08/292,861                   10/01/96
5,561,102                   08/355,851                   10/01/96
5,561,105                   08/436,550                   10/01/96
5,561,106                   08/515,785                   10/01/96
5,561,112                   08/204,836                   10/01/96
5,561,124                   08/436,292                   10/01/96
5,561,125                   08/408,381                   10/01/96
5,561,135                   08/392,987                   10/01/96
5,561,136                   08/437,469                   10/01/96
5,561,147                   08/455,170                   10/01/96
5,561,149                   08/403,620                   10/01/96
5,561,154                   08/391,233                   10/01/96
5,561,170                   08/426,475                   10/01/96
5,561,179                   08/560,263                   10/01/96
5,561,186                   08/466,885                   10/01/96
5,561,191                   08/392,991                   10/01/96
5,561,192                   08/324,426                   10/01/96
5,561,199                   08/562,751                   10/01/96
5,561,214                   08/443,505                   10/01/96
5,561,221                   08/285,346                   10/01/96
5,561,226                   08/094,152                   10/01/96
5,561,234                   08/499,726                   10/01/96
5,561,243                   08/408,830                   10/01/96
5,561,253                   08/510,768                   10/01/96
5,561,254                   08/492,298                   10/01/96
5,561,257                   08/550,390                   10/01/96
5,561,259                   08/322,913                   10/01/96
5,561,264                   08/538,902                   10/01/96
5,561,276                   08/550,039                   10/01/96
5,561,294                   08/330,151                   10/01/96
5,561,321                   08/146,086                   10/01/96
5,561,326                   08/414,014                   10/01/96
5,561,336                   08/304,798                   10/01/96
5,561,354                   08/504,283                   10/01/96
5,561,413                   08/368,707                   10/01/96
5,561,414                   08/392,324                   10/01/96
5,561,418                   08/313,498                   10/01/96
5,561,427                   08/366,565                   10/01/96
5,561,463                   08/307,678                   10/01/96
5,561,467                   07/498,778                   10/01/96
5,561,483                   08/470,146                   10/01/96
5,561,507                   08/272,210                   10/01/96
5,561,508                   08/400,834                   10/01/96
5,561,535                   08/297,050                   10/01/96
5,561,540                   08/333,749                   10/01/96
5,561,548                   07/958,642                   10/01/96
5,561,557                   08/254,693                   10/01/96
5,561,563                   08/462,072                   10/01/96
5,561,570                   08/348,772                   10/01/96
5,561,574                   08/521,614                   10/01/96
5,561,575                   08/561,267                   10/01/96
5,561,582                   08/573,903                   10/01/96
5,561,588                   08/545,039                   10/01/96
5,561,593                   08/187,052                   10/01/96
5,561,595                   08/409,869                   10/01/96
5,561,621                   08/381,529                   10/01/96
5,561,640                   08/443,918                   10/01/96
5,561,648                   08/348,810                   10/01/96
5,561,659                   08/450,136                   10/01/96
5,561,680                   08/359,379                   10/01/96
5,561,684                   08/365,967                   10/01/96
5,561,693                   08/283,426                   10/01/96
5,561,699                   08/435,429                   10/01/96
5,561,714                   08/353,610                   10/01/96
5,561,732                   08/204,327                   10/01/96
5,561,754                   08/108,194                   10/01/96
5,561,755                   08/280,697                   10/01/96
5,561,762                   08/471,417                   10/01/96
5,561,764                   08/446,560                   10/01/96
5,561,794                   08/238,036                   10/01/96
5,561,803                   08/488,030                   10/01/96