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

   35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required 
maintenance fee and any applicable surcharge are not paid in a patent 
requiring such payment, the patent will expire at the end of the 4th, 8th 
or 12th anniversary of the grant of the patent depending on the first 
maintenance fee which was not paid.
   According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.
   
                   PATENTS WHICH EXPIRED ON November 8, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

4,782,541                       07/075,970                       11/08/88
4,782,542                       06/927,263                       11/08/88
4,782,543                       07/034,424                       11/08/88
4,782,550                       07/155,312                       11/08/88
4,782,552                       07/077,626                       11/08/88
4,782,555                       07/077,035                       11/08/88
4,782,561                       07/065,531                       11/08/88
4,782,566                       07/079,831                       11/08/88
4,782,567                       07/031,742                       11/08/88
4,782,571                       07/027,325                       11/08/88
4,782,590                       06/731,122                       11/08/88
4,782,593                       07/020,099                       11/08/88
4,782,600                       07/019,572                       11/08/88
4,782,605                       06/891,898                       11/08/88
4,782,608                       06/928,319                       11/08/88
4,782,617                       06/922,876                       11/08/88
4,782,620                       07/058,568                       11/08/88
4,782,624                       07/160,252                       11/08/88
4,782,636                       07/003,414                       11/08/88
4,782,647                       07/109,679                       11/08/88
4,782,652                       07/102,099                       11/08/88
4,782,653                       07/066,420                       11/08/88
4,782,657                       07/073,161                       11/08/88
4,782,658                       07/046,708                       11/08/88
4,782,659                       07/073,157                       11/08/88
4,782,677                       07/034,752                       11/08/88
4,782,683                       06/835,478                       11/08/88
4,782,693                       07/076,291                       11/08/88
4,782,702                       07/060,747                       11/08/88
4,782,705                       07/073,355                       11/08/88
4,782,706                       07/012,443                       11/08/88
4,782,709                       06/891,005                       11/08/88
4,782,710                       07/043,044                       11/08/88
4,782,713                       07/050,301                       11/08/88
4,782,719                       07/048,150                       11/08/88
4,782,726                       07/002,729                       11/08/88
4,782,732                       07/170,798                       11/08/88
4,782,735                       07/085,433                       11/08/88
4,782,749                       06/891,913                       11/08/88
4,782,752                       07/064,865                       11/08/88
4,782,755                       07/043,441                       11/08/88
4,782,756                       07/133,108                       11/08/88
4,782,757                       07/095,151                       11/08/88
4,782,761                       07/045,857                       11/08/88
4,782,766                       07/018,682                       11/08/88
4,782,769                       07/144,625                       11/08/88
4,782,781                       06/908,818                       11/08/88
4,782,784                       06/941,633                       11/08/88
4,782,794                       07/089,207                       11/08/88
4,782,796                       06/886,341                       11/08/88
4,782,800                       07/092,979                       11/08/88
4,782,803                       07/064,084                       11/08/88
4,782,811                       07/032,509                       11/08/88
4,782,814                       06/576,037                       11/08/88
4,782,819                       07/036,553                       11/08/88
4,782,822                       07/082,589                       11/08/88
4,782,823                       07/026,938                       11/08/88
4,782,824                       07/076,790                       11/08/88
4,782,831                       07/054,707                       11/08/88
4,782,833                       07/016,587                       11/08/88
4,782,842                       07/009,909                       11/08/88
4,782,853                       07/109,999                       11/08/88
4,782,854                       07/048,036                       11/08/88
4,782,856                       07/038,878                       11/08/88
4,782,863                       07/089,023                       11/08/88
4,782,876                       06/906,614                       11/08/88
4,782,878                       06/943,068                       11/08/88
4,782,885                       07/145,922                       11/08/88
4,782,892                       07/104,542                       11/08/88
4,782,896                       07/055,489                       11/08/88
4,782,912                       07/027,478                       11/08/88
4,782,913                       07/046,462                       11/08/88
4,782,922                       06/900,554                       11/08/88
4,782,927                       07/045,451                       11/08/88
4,782,929                       07/038,492                       11/08/88
4,782,930                       07/008,777                       11/08/88
4,782,939                       07/055,729                       11/08/88
4,782,940                       06/872,483                       11/08/88
4,782,943                       06/940,617                       11/08/88
4,782,968                       07/039,747                       11/08/88
4,782,976                       07/178,729                       11/08/88
4,782,977                       07/133,578                       11/08/88
4,782,995                       06/771,479                       11/08/88
4,782,999                       07/087,794                       11/08/88
4,783,005                       07/060,178                       11/08/88
4,783,012                       07/130,989                       11/08/88
4,783,019                       07/007,360                       11/08/88
4,783,024                       06/930,919                       11/08/88
4,783,034                       07/013,507                       11/08/88
4,783,044                       07/068,591                       11/08/88
4,783,058                       07/141,912                       11/08/88
4,783,059                       07/141,911                       11/08/88
4,783,068                       07/099,016                       11/08/88
4,783,075                       07/165,805                       11/08/88
4,783,079                       07/011,528                       11/08/88
4,783,088                       07/027,545                       11/08/88
4,783,089                       06/760,141                       11/08/88
4,783,093                       06/909,623                       11/08/88
4,783,103                       07/017,238                       11/08/88
4,783,110                       07/149,497                       11/08/88
4,783,113                       07/116,406                       11/08/88
4,783,122                       06/912,517                       11/08/88
4,783,123                       06/946,417                       11/08/88
4,783,133                       06/900,548                       11/08/88
4,783,139                       06/827,069                       11/08/88
4,783,143                       07/023,247                       11/08/88
4,783,154                       06/888,377                       11/08/88
4,783,158                       07/095,668                       11/08/88
4,783,161                       07/095,163                       11/08/88
4,783,164                       07/112,822                       11/08/88
4,783,165                       07/014,309                       11/08/88
4,783,189                       07/051,854                       11/08/88
4,783,196                       07/010,932                       11/08/88
4,783,197                       07/128,429                       11/08/88
4,783,198                       07/119,581                       11/08/88
4,783,202                       06/674,241                       11/08/88
4,783,203                       07/111,452                       11/08/88
4,783,204                       06/893,440                       11/08/88
4,783,207                       07/105,337                       11/08/88
4,783,210                       07/132,534                       11/08/88
4,783,221                       06/940,548                       11/08/88
4,783,222                       07/102,700                       11/08/88
4,783,224                       07/132,243                       11/08/88
4,783,229                       07/034,504                       11/08/88
4,783,241                       07/133,996                       11/08/88
4,783,243                       06/944,281                       11/08/88
4,783,251                       06/945,644                       11/08/88
4,783,252                       07/020,364                       11/08/88
4,783,256                       06/891,323                       11/08/88
4,783,260                       07/080,832                       11/08/88
4,783,269                       07/037,157                       11/08/88
4,783,271                       06/879,308                       11/08/88
4,783,279                       07/081,232                       11/08/88
4,783,281                       06/816,930                       11/08/88
4,783,284                       06/907,898                       11/08/88
4,783,302                       06/922,089                       11/08/88
4,783,306                       06/870,280                       11/08/88
4,783,311                       07/073,560                       11/08/88
4,783,325                       06/734,393                       11/08/88
4,783,326                       06/932,505                       11/08/88
4,783,333                       07/149,909                       11/08/88
4,783,348                       06/934,426                       11/08/88
4,783,351                       07/093,796                       11/08/88
4,783,361                       07/163,135                       11/08/88
4,783,363                       07/024,651                       11/08/88
4,783,368                       06/927,211                       11/08/88
4,783,370                       06/868,134                       11/08/88
4,783,372                       07/041,889                       11/08/88
4,783,378                       07/065,561                       11/08/88
4,783,380                       07/093,289                       11/08/88
4,783,381                       07/071,494                       11/08/88
4,783,387                       07/105,249                       11/08/88
4,783,395                       07/117,591                       11/08/88
4,783,404                       06/650,638                       11/08/88
4,783,417                       06/826,988                       11/08/88
4,783,423                       07/090,419                       11/08/88
4,783,424                       06/834,101                       11/08/88
4,783,429                       07/033,995                       11/08/88
4,783,431                       07/071,642                       11/08/88
4,783,433                       06/929,089                       11/08/88
4,783,434                       06/925,193                       11/08/88
4,783,435                       07/089,939                       11/08/88
4,783,445                       07/132,097                       11/08/88
4,783,450                       07/037,671                       11/08/88
4,783,457                       07/026,968                       11/08/88
4,783,462                       06/833,607                       11/08/88
4,783,489                       06/826,547                       11/08/88
4,783,492                       06/726,805                       11/08/88
4,783,501                       06/898,496                       11/08/88
4,783,502                       07/128,353                       11/08/88
4,783,505                       06/930,619                       11/08/88
4,783,510                       07/057,193                       11/08/88
4,783,513                       07/036,624                       11/08/88
4,783,514                       06/872,372                       11/08/88
4,783,516                       06/554,291                       11/08/88
4,783,522                       06/884,603                       11/08/88
4,783,542                       06/497,954                       11/08/88
4,783,544                       06/875,064                       11/08/88
4,783,548                       07/097,021                       11/08/88
4,783,559                       07/030,155                       11/08/88
4,783,560                       06/888,901                       11/08/88
4,783,565                       07/045,578                       11/08/88
4,783,586                       07/096,238                       11/08/88
4,783,598                       06/905,552                       11/08/88
4,783,613                       07/055,035                       11/08/88
4,783,617                       06/881,023                       11/08/88
4,783,622                       07/042,249                       11/08/88
4,783,626                       07/027,590                       11/08/88
4,783,628                       07/085,649                       11/08/88
4,783,638                       07/060,162                       11/08/88
4,783,647                       06/811,888                       11/08/88
4,783,652                       06/900,014                       11/08/88
4,783,657                       06/828,103                       11/08/88
4,783,669                       07/020,409                       11/08/88
4,783,678                       06/890,061                       11/08/88
4,783,686                       07/051,645                       11/08/88
4,783,692                       06/859,208                       11/08/88
4,783,696                       06/938,546                       11/08/88
4,783,699                       06/912,104                       11/08/88
4,783,709                       06/917,774                       11/08/88
4,783,711                       06/879,567                       11/08/88
4,783,715                       07/182,651                       11/08/88
4,783,730                       06/910,006                       11/08/88
4,783,735                       06/810,945                       11/08/88
4,783,738                       06/839,311                       11/08/88
4,783,743                       06/808,172                       11/08/88
4,783,747                       07/021,487                       11/08/88
4,783,760                       06/740,700                       11/08/88
4,783,767                       06/872,126                       11/08/88
4,783,768                       07/042,367                       11/08/88
4,783,775                       06/889,149                       11/08/88
4,783,776                       06/886,413                       11/08/88
4,783,778                       06/908,112                       11/08/88
4,783,779                       06/917,572                       11/08/88
4,783,783                       06/888,936                       11/08/88
4,783,784                       06/883,755                       11/08/88
4,783,786                       06/884,525                       11/08/88
4,783,789                       06/751,503                       11/08/88
4,783,791                       07/038,753                       11/08/88
4,783,795                       07/007,482                       11/08/88
4,783,798                       06/712,015                       11/08/88
4,783,802                       06/775,398                       11/08/88
4,783,813                       06/946,383                       11/08/88
4,783,824                       06/789,028                       11/08/88
4,783,825                       06/854,570                       11/08/88
4,783,833                       06/935,260                       11/08/88
4,783,835                       07/142,353                       11/08/88
4,783,836                       06/768,570                       11/08/88
4,783,839                       06/903,565                       11/08/88

                   PATENTS WHICH EXPIRED ON November 3, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,159,717                       07/537,055                       11/03/92
5,159,720                       07/829,773                       11/03/92
5,159,729                       07/729,333                       11/03/92
5,159,731                       07/772,247                       11/03/92
5,159,738                       07/819,134                       11/03/92
5,159,742                       07/606,702                       11/03/92
5,159,744                       07/825,569                       11/03/92
5,159,745                       07/492,855                       11/03/92
5,159,759                       07/721,170                       11/03/92
5,159,764                       07/727,933                       11/03/92
5,159,765                       07/687,388                       11/03/92
5,159,768                       07/750,206                       11/03/92
5,159,776                       07/557,553                       11/03/92
5,159,778                       07/579,966                       11/03/92
5,159,779                       07/696,170                       11/03/92
5,159,780                       07/537,122                       11/03/92
5,159,792                       07/667,762                       11/03/92
5,159,811                       07/552,976                       11/03/92
5,159,812                       07/633,084                       11/03/92
5,159,814                       07/604,763                       11/03/92
5,159,821                       07/740,618                       11/03/92
5,159,828                       07/577,338                       11/03/92
5,159,832                       07/826,687                       11/03/92
5,159,836                       07/582,870                       11/03/92
5,159,837                       07/645,511                       11/03/92
5,159,843                       07/658,477                       11/03/92
5,159,844                       07/689,588                       11/03/92
5,159,848                       07/694,559                       11/03/92
5,159,851                       07/762,545                       11/03/92
5,159,865                       07/833,871                       11/03/92
5,159,868                       07/689,823                       11/03/92
5,159,870                       07/745,412                       11/03/92
5,159,873                       07/659,893                       11/03/92
5,159,874                       07/578,767                       11/03/92
5,159,876                       07/677,347                       11/03/92
5,159,878                       07/860,144                       11/03/92
5,159,883                       07/753,790                       11/03/92
5,159,884                       07/760,995                       11/03/92
5,159,887                       07/613,227                       11/03/92
5,159,891                       07/748,402                       11/03/92
5,159,894                       07/794,790                       11/03/92
5,159,902                       07/635,999                       11/03/92
5,159,904                       07/458,742                       11/03/92
5,159,905                       07/767,335                       11/03/92
5,159,906                       07/695,127                       11/03/92
5,159,907                       07/803,270                       11/03/92
5,159,908                       07/634,222                       11/03/92
5,159,909                       07/621,019                       11/03/92
5,159,910                       07/704,982                       11/03/92
5,159,921                       07/618,393                       11/03/92
5,159,922                       07/803,463                       11/03/92
5,159,929                       07/538,398                       11/03/92
5,159,932                       07/833,630                       11/03/92
5,159,938                       07/750,521                       11/03/92
5,159,944                       07/528,302                       11/03/92
5,159,949                       07/712,507                       11/03/92
5,159,954                       07/767,264                       11/03/92
5,159,962                       07/681,140                       11/03/92
5,159,963                       07/675,555                       11/03/92
5,159,970                       07/554,399                       11/03/92
5,159,971                       07/722,428                       11/03/92
5,159,973                       07/676,979                       11/03/92
5,159,978                       07/744,139                       11/03/92
5,159,980                       07/722,045                       11/03/92
5,159,984                       07/695,561                       11/03/92
5,160,000                       07/836,215                       11/03/92
5,160,009                       07/519,121                       11/03/92
5,160,014                       07/847,405                       11/03/92
5,160,015                       07/756,398                       11/03/92
5,160,029                       07/614,903                       11/03/92
5,160,032                       07/808,136                       11/03/92
5,160,034                       07/845,761                       11/03/92
5,160,035                       07/515,081                       11/03/92
5,160,042                       07/787,898                       11/03/92
5,160,044                       07/839,206                       11/03/92
5,160,046                       07/793,900                       11/03/92
5,160,049                       07/694,459                       11/03/92
5,160,062                       07/780,995                       11/03/92
5,160,072                       07/739,827                       11/03/92
5,160,074                       07/760,090                       11/03/92
5,160,075                       07/570,208                       11/03/92
5,160,079                       07/747,935                       11/03/92
5,160,081                       07/813,734                       11/03/92
5,160,082                       07/836,851                       11/03/92
5,160,083                       07/778,382                       11/03/92
5,160,085                       07/793,559                       11/03/92
5,160,086                       07/577,491                       11/03/92
5,160,088                       07/613,659                       11/03/92
5,160,095                       07/819,099                       11/03/92
5,160,097                       07/674,372                       11/03/92
5,160,098                       07/616,885                       11/03/92
5,160,103                       07/804,459                       11/03/92
5,160,104                       07/564,767                       11/03/92
5,160,111                       07/822,712                       11/03/92
5,160,116                       07/633,617                       11/03/92
5,160,117                       07/748,608                       11/03/92
5,160,118                       07/809,720                       11/03/92
5,160,119                       07/778,523                       11/03/92
5,160,120                       07/644,775                       11/03/92
5,160,124                       07/805,658                       11/03/92
5,160,128                       07/675,818                       11/03/92
5,160,131                       07/714,271                       11/03/92
5,160,135                       07/680,013                       11/03/92
5,160,136                       07/619,053                       11/03/92
5,160,137                       07/857,129                       11/03/92
5,160,142                       07/804,864                       11/03/92
5,160,144                       07/787,223                       11/03/92
5,160,150                       07/614,163                       11/03/92
5,160,152                       07/667,749                       11/03/92
5,160,157                       07/662,181                       11/03/92
5,160,161                       07/658,610                       11/03/92
5,160,162                       07/672,633                       11/03/92
5,160,165                       07/789,679                       11/03/92
5,160,167                       07/675,007                       11/03/92
5,160,169                       07/871,836                       11/03/92
5,160,179                       07/730,883                       11/03/92
5,160,182                       07/821,442                       11/03/92
5,160,189                       07/505,248                       11/03/92
5,160,190                       07/703,188                       11/03/92
5,160,192                       07/701,579                       11/03/92
5,160,197                       07/760,863                       11/03/92
5,160,203                       07/721,963                       11/03/92
5,160,206                       07/559,539                       11/03/92
5,160,221                       07/712,395                       11/03/92
5,160,228                       07/677,503                       11/03/92
5,160,238                       07/554,781                       11/03/92
5,160,247                       07/764,885                       11/03/92
5,160,259                       07/694,257                       11/03/92
5,160,263                       07/683,251                       11/03/92
5,160,265                       07/723,406                       11/03/92
5,160,270                       07/697,201                       11/03/92
5,160,275                       07/734,625                       11/03/92
5,160,280                       07/791,144                       11/03/92
5,160,285                       07/772,442                       11/03/92
5,160,293                       07/757,635                       11/03/92
5,160,295                       07/702,096                       11/03/92
5,160,299                       07/684,821                       11/03/92
5,160,300                       07/819,243                       11/03/92
5,160,302                       07/654,353                       11/03/92
5,160,303                       07/679,256                       11/03/92
5,160,306                       07/802,017                       11/03/92
5,160,320                       07/741,413                       11/03/92
5,160,323                       07/656,153                       11/03/92
5,160,326                       07/717,592                       11/03/92
5,160,329                       07/550,641                       11/03/92
5,160,333                       07/649,831                       11/03/92
5,160,349                       07/438,835                       11/03/92
5,160,350                       07/806,808                       11/03/92
5,160,351                       07/705,335                       11/03/92
5,160,358                       07/692,457                       11/03/92
5,160,359                       07/726,745                       11/03/92
5,160,367                       07/770,385                       11/03/92
5,160,369                       07/659,776                       11/03/92
5,160,372                       07/714,877                       11/03/92
5,160,374                       07/557,285                       11/03/92
5,160,377                       07/735,598                       11/03/92
5,160,389                       07/732,770                       11/03/92
5,160,390                       07/757,313                       11/03/92
5,160,394                       07/638,091                       11/03/92
5,160,400                       07/528,298                       11/03/92
5,160,406                       07/509,228                       11/03/92
5,160,407                       07/636,867                       11/03/92
5,160,411                       07/536,559                       11/03/92
5,160,412                       07/848,184                       11/03/92
5,160,416                       07/674,825                       11/03/92
5,160,419                       07/737,064                       11/03/92
5,160,422                       07/530,169                       11/03/92
5,160,423                       07/606,024                       11/03/92
5,160,426                       07/515,931                       11/03/92
5,160,432                       07/695,318                       11/03/92
5,160,436                       07/693,379                       11/03/92
5,160,438                       07/635,072                       11/03/92
5,160,439                       07/718,764                       11/03/92
5,160,441                       07/701,778                       11/03/92
5,160,448                       07/704,695                       11/03/92
5,160,450                       07/622,473                       11/03/92
5,160,459                       07/818,508                       11/03/92
5,160,470                       07/885,791                       11/03/92
5,160,473                       07/701,764                       11/03/92
5,160,477                       07/727,240                       11/03/92
5,160,479                       07/722,325                       11/03/92
5,160,483                       07/697,642                       11/03/92
5,160,485                       07/506,194                       11/03/92
5,160,488                       07/583,378                       11/03/92
5,160,493                       07/692,755                       11/03/92
5,160,500                       07/785,361                       11/03/92
5,160,505                       07/562,559                       11/03/92
5,160,510                       07/710,354                       11/03/92
5,160,514                       07/806,718                       11/03/92
5,160,515                       07/764,539                       11/03/92
5,160,516                       07/797,981                       11/03/92
5,160,517                       07/841,191                       11/03/92
5,160,518                       07/709,642                       11/03/92
5,160,520                       07/718,626                       11/03/92
5,160,524                       07/673,179                       11/03/92
5,160,525                       07/675,347                       11/03/92
5,160,530                       07/301,458                       11/03/92
5,160,531                       07/795,837                       11/03/92
5,160,538                       07/690,869                       11/03/92
5,160,552                       07/694,749                       11/03/92
5,160,555                       07/661,214                       11/03/92
5,160,558                       07/562,792                       11/03/92
5,160,565                       07/602,484                       11/03/92
5,160,574                       07/707,659                       11/03/92
5,160,577                       07/738,015                       11/03/92
5,160,582                       07/520,380                       11/03/92
5,160,585                       07/734,606                       11/03/92
5,160,588                       07/444,676                       11/03/92
5,160,590                       07/770,715                       11/03/92
5,160,607                       07/690,716                       11/03/92
5,160,617                       07/683,079                       11/03/92
5,160,619                       07/759,021                       11/03/92
5,160,623                       07/759,706                       11/03/92
5,160,630                       07/764,040                       11/03/92
5,160,639                       07/719,067                       11/03/92
5,160,641                       07/635,809                       11/03/92
5,160,644                       07/805,759                       11/03/92
5,160,654                       07/566,635                       11/03/92
5,160,656                       07/614,050                       11/03/92
5,160,661                       07/620,818                       11/03/92
5,160,670                       07/719,421                       11/03/92
5,160,671                       07/777,047                       11/03/92
5,160,673                       07/665,490                       11/03/92
5,160,687                       07/585,132                       11/03/92
5,160,689                       07/615,750                       11/03/92
5,160,694                       07/633,961                       11/03/92
5,160,696                       07/560,900                       11/03/92
5,160,702                       07/297,563                       11/03/92
5,160,722                       07/716,539                       11/03/92
5,160,729                       07/734,975                       11/03/92
5,160,731                       07/638,129                       11/03/92
5,160,734                       07/641,610                       11/03/92
5,160,735                       07/538,270                       11/03/92
5,160,756                       07/029,929                       11/03/92
5,160,761                       07/856,703                       11/03/92
5,160,765                       07/484,322                       11/03/92
5,160,768                       07/262,764                       11/03/92
5,160,773                       07/746,681                       11/03/92
5,160,786                       07/630,197                       11/03/92
5,160,797                       07/766,281                       11/03/92
5,160,803                       07/618,479                       11/03/92
5,160,807                       07/743,481                       11/03/92
5,160,809                       07/666,941                       11/03/92
5,160,813                       07/767,112                       11/03/92
5,160,814                       07/554,620                       11/03/92
5,160,815                       07/719,748                       11/03/92
5,160,818                       07/688,797                       11/03/92
5,160,820                       07/671,110                       11/03/92
5,160,824                       07/877,252                       11/03/92
5,160,826                       07/770,699                       11/03/92
5,160,828                       07/489,161                       11/03/92
5,160,837                       07/669,957                       11/03/92
5,160,839                       07/703,751                       11/03/92
5,160,840                       07/782,112                       11/03/92
5,160,843                       07/731,971                       11/03/92
5,160,864                       07/330,765                       11/03/92
5,160,865                       07/753,003                       11/03/92
5,160,870                       07/543,267                       11/03/92
5,160,874                       07/647,581                       11/03/92
5,160,875                       07/580,585                       11/03/92
5,160,879                       07/773,194                       11/03/92
5,160,891                       07/609,779                       11/03/92
5,160,902                       07/727,839                       11/03/92
5,160,906                       07/720,143                       11/03/92
5,160,909                       07/726,264                       11/03/92
5,160,911                       07/605,097                       11/03/92
5,160,913                       07/760,603                       11/03/92
5,160,920                       07/623,847                       11/03/92
5,160,924                       07/752,913                       11/03/92
5,160,930                       07/665,856                       11/03/92
5,160,935                       07/799,443                       11/03/92
5,160,956                       07/637,645                       11/03/92
5,160,958                       07/799,736                       11/03/92
5,160,959                       07/809,644                       11/03/92
5,160,973                       07/778,740                       11/03/92
5,160,974                       07/542,967                       11/03/92
5,160,983                       07/439,809                       11/03/92
5,160,984                       07/732,934                       11/03/92
5,160,990                       07/286,817                       11/03/92
5,160,999                       07/543,823                       11/03/92
5,161,003                       07/667,297                       11/03/92
5,161,004                       07/667,612                       11/03/92
5,161,021                       07/629,671                       11/03/92
5,161,048                       07/633,893                       11/03/92
5,161,056                       07/559,404                       11/03/92
5,161,057                       07/537,230                       11/03/92
5,161,067                       07/508,558                       11/03/92
5,161,068                       07/386,798                       11/03/92
5,161,069                       07/733,184                       11/03/92
5,161,078                       07/534,212                       11/03/92
5,161,089                       07/532,722                       11/03/92
5,161,094                       07/756,315                       11/03/92
5,161,096                       07/778,417                       11/03/92
5,161,099                       07/411,288                       11/03/92
5,161,100                       07/485,037                       11/03/92
5,161,108                       07/856,302                       11/03/92
5,161,110                       07/485,425                       11/03/92
5,161,126                       07/706,625                       11/03/92
5,161,129                       07/808,871                       11/03/92
5,161,130                       07/599,133                       11/03/92
5,161,147                       07/400,841                       11/03/92
5,161,158                       07/421,579                       11/03/92
5,161,167                       07/717,046                       11/03/92
5,161,182                       07/686,684                       11/03/92
5,161,188                       07/732,593                       11/03/92
5,161,191                       07/618,617                       11/03/92
5,161,198                       07/700,745                       11/03/92
5,161,211                       07/422,039                       11/03/92
5,161,217                       07/418,084                       11/03/92
5,161,219                       07/711,343                       11/03/92
5,161,221                       07/282,714                       11/03/92
5,161,237                       07/570,241                       11/03/92
5,161,240                       07/605,106                       11/03/92
5,161,241                       07/813,061                       11/03/92
5,161,242                       07/300,842                       11/03/92
5,161,246                       07/694,562                       11/03/92
5,161,247                       07/379,274                       11/03/92
5,161,252                       07/375,669                       11/03/92
5,161,254                       07/621,359                       11/03/92
5,161,255                       07/645,527                       11/03/92

                   PATENTS WHICH EXPIRED ON November 5, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,570,470                       08/497,525                       11/05/96
5,570,471                       08/400,378                       11/05/96
5,570,484                       08/276,000                       11/05/96
5,570,486                       08/448,197                       11/05/96
5,570,487                       08/557,360                       11/05/96
5,570,489                       08/501,311                       11/05/96
5,570,493                       08/342,352                       11/05/96
5,570,496                       08/385,753                       11/05/96
5,570,501                       08/351,277                       11/05/96
5,570,506                       08/463,562                       11/05/96
5,570,515                       08/500,142                       11/05/96
5,570,521                       08/430,539                       11/05/96
5,570,523                       08/455,405                       11/05/96
5,570,524                       08/489,756                       11/05/96
5,570,527                       08/390,800                       11/05/96
5,570,528                       08/488,647                       11/05/96
5,570,530                       07/783,528                       11/05/96
5,570,536                       08/363,563                       11/05/96
5,570,537                       08/430,904                       11/05/96
5,570,540                       08/434,072                       11/05/96
5,570,543                       08/197,195                       11/05/96
5,570,544                       08/337,077                       11/05/96
5,570,545                       08/202,211                       11/05/96
5,570,549                       08/275,974                       11/05/96
5,570,550                       08/104,091                       11/05/96
5,570,551                       08/518,809                       11/05/96
5,570,553                       08/390,808                       11/05/96
5,570,555                       08/375,607                       11/05/96
5,570,560                       08/461,325                       11/05/96
5,570,571                       08/605,653                       11/05/96
5,570,572                       08/295,859                       11/05/96
5,570,578                       08/159,541                       11/05/96
5,570,579                       08/178,295                       11/05/96
5,570,590                       08/401,263                       11/05/96
5,570,592                       08/555,484                       11/05/96
5,570,595                       08/416,767                       11/05/96
5,570,598                       08/393,930                       11/05/96
5,570,600                       08/342,748                       11/05/96
5,570,609                       08/295,790                       11/05/96
5,570,613                       08/351,683                       11/05/96
5,570,617                       08/493,716                       11/05/96
5,570,623                       08/568,932                       11/05/96
5,570,630                       08/569,933                       11/05/96
5,570,641                       08/508,912                       11/05/96
5,570,642                       08/369,599                       11/05/96
5,570,644                       08/517,100                       11/05/96
5,570,646                       08/281,470                       11/05/96
5,570,648                       08/354,673                       11/05/96
5,570,654                       08/536,594                       11/05/96
5,570,655                       08/344,001                       11/05/96
5,570,675                       08/228,644                       11/05/96
5,570,676                       08/402,471                       11/05/96
5,570,680                       08/493,358                       11/05/96
5,570,685                       08/443,951                       11/05/96
5,570,704                       08/359,881                       11/05/96
5,570,710                       08/528,889                       11/05/96
5,570,712                       08/546,358                       11/05/96
5,570,727                       08/293,014                       11/05/96
5,570,733                       08/336,834                       11/05/96
5,570,734                       08/372,941                       11/05/96
5,570,735                       08/444,401                       11/05/96
5,570,742                       08/450,391                       11/05/96
5,570,748                       08/542,285                       11/05/96
5,570,760                       08/585,937                       11/05/96
5,570,764                       08/381,749                       11/05/96
5,570,772                       08/397,669                       11/05/96
5,570,774                       08/411,800                       11/05/96
5,570,775                       08/532,717                       11/05/96
5,570,780                       08/423,215                       11/05/96
5,570,781                       08/317,700                       11/05/96
5,570,791                       08/406,120                       11/05/96
5,570,793                       08/393,847                       11/05/96
5,570,794                       08/509,927                       11/05/96
5,570,801                       08/544,216                       11/05/96
5,570,805                       08/407,600                       11/05/96
5,570,806                       08/462,683                       11/05/96
5,570,807                       08/519,597                       11/05/96
5,570,809                       08/390,088                       11/05/96
5,570,816                       08/351,783                       11/05/96
5,570,820                       08/155,843                       11/05/96
5,570,824                       08/433,314                       11/05/96
5,570,825                       08/446,421                       11/05/96
5,570,830                       08/443,091                       11/05/96
5,570,831                       08/167,069                       11/05/96
5,570,835                       08/372,012                       11/05/96
5,570,839                       08/396,280                       11/05/96
5,570,840                       08/323,264                       11/05/96
5,570,844                       08/290,740                       11/05/96
5,570,853                       08/528,227                       11/05/96
5,570,855                       08/404,337                       11/05/96
5,570,859                       08/370,371                       11/05/96
5,570,860                       08/200,621                       11/05/96
5,570,862                       08/488,992                       11/05/96
5,570,871                       08/402,509                       11/05/96
5,570,877                       08/504,355                       11/05/96
5,570,881                       08/327,914                       11/05/96
5,570,884                       08/418,560                       11/05/96
5,570,889                       08/524,581                       11/05/96
5,570,894                       08/452,651                       11/05/96
5,570,896                       08/170,212                       11/05/96
5,570,903                       08/391,061                       11/05/96
5,570,914                       08/503,459                       11/05/96
5,570,918                       08/395,328                       11/05/96
5,570,919                       08/494,841                       11/05/96
5,570,938                       08/385,102                       11/05/96
5,570,947                       08/336,304                       11/05/96
5,570,949                       08/580,942                       11/05/96
5,570,955                       08/242,612                       11/05/96
5,570,965                       08/522,701                       11/05/96
5,570,966                       08/438,028                       11/05/96
5,570,967                       08/502,486                       11/05/96
5,570,968                       08/343,610                       11/05/96
5,570,970                       08/255,243                       11/05/96
5,570,974                       08/328,071                       11/05/96
5,570,979                       08/516,333                       11/05/96
5,570,987                       08/166,589                       11/05/96
5,570,988                       08/247,684                       11/05/96
5,570,989                       08/385,659                       11/05/96
5,570,998                       08/545,534                       11/05/96
5,571,003                       08/490,070                       11/05/96
5,571,005                       08/479,676                       11/05/96
5,571,020                       08/128,821                       11/05/96
5,571,024                       08/339,814                       11/05/96
5,571,033                       08/395,394                       11/05/96
5,571,037                       08/534,035                       11/05/96
5,571,038                       08/515,452                       11/05/96
5,571,040                       08/168,023                       11/05/96
5,571,062                       08/537,588                       11/05/96
5,571,064                       08/451,126                       11/05/96
5,571,072                       08/430,346                       11/05/96
5,571,077                       08/324,723                       11/05/96
5,571,088                       08/471,647                       11/05/96
5,571,092                       08/500,637                       11/05/96
5,571,095                       08/520,819                       11/05/96
5,571,099                       08/437,994                       11/05/96
5,571,107                       08/303,219                       11/05/96
5,571,111                       08/432,569                       11/05/96
5,571,114                       08/274,340                       11/05/96
5,571,119                       08/437,963                       11/05/96
5,571,120                       08/452,756                       11/05/96
5,571,128                       08/506,023                       11/05/96
5,571,133                       08/457,527                       11/05/96
5,571,134                       08/327,686                       11/05/96
5,571,139                       08/445,337                       11/05/96
5,571,167                       08/391,960                       11/05/96
5,571,170                       08/199,119                       11/05/96
5,571,176                       08/041,950                       11/05/96
5,571,185                       08/075,494                       11/05/96
5,571,190                       08/289,286                       11/05/96
5,571,218                       08/570,722                       11/05/96
5,571,219                       08/349,962                       11/05/96
5,571,222                       08/410,249                       11/05/96
5,571,228                       08/438,086                       11/05/96
5,571,230                       08/064,758                       11/05/96
5,571,233                       08/578,355                       11/05/96
5,571,234                       08/390,646                       11/05/96
5,571,262                       06/573,700                       11/05/96
5,571,272                       08/326,836                       11/05/96
5,571,278                       08/581,175                       11/05/96
5,571,279                       08/581,174                       11/05/96
5,571,287                       08/289,956                       11/05/96
5,571,293                       08/527,711                       11/05/96
5,571,322                       08/489,745                       11/05/96
5,571,341                       08/403,273                       11/05/96
5,571,399                       08/370,305                       11/05/96
5,571,430                       08/360,453                       11/05/96
5,571,443                       08/366,907                       11/05/96
5,571,446                       08/508,124                       11/05/96
5,571,458                       08/281,544                       11/05/96
5,571,478                       08/095,482                       11/05/96
5,571,485                       08/428,803                       11/05/96
5,571,486                       08/442,024                       11/05/96
5,571,487                       08/400,569                       11/05/96
5,571,501                       08/213,279                       11/05/96
5,571,507                       07/840,867                       11/05/96
5,571,513                       08/455,799                       11/05/96
5,571,516                       08/294,556                       11/05/96
5,571,518                       08/546,959                       11/05/96
5,571,532                       08/124,310                       11/05/96
5,571,533                       08/240,033                       11/05/96
5,571,539                       08/367,396                       11/05/96
5,571,542                       08/425,478                       11/05/96
5,571,546                       08/271,227                       11/05/96
5,571,560                       08/180,368                       11/05/96
5,571,561                       08/138,012                       11/05/96
5,571,567                       08/478,931                       11/05/96
5,571,568                       08/474,114                       11/05/96
5,571,582                       08/369,334                       11/05/96
5,571,602                       08/366,188                       11/05/96
5,571,621                       08/487,836                       11/05/96
5,571,651                       08/223,131                       11/05/96
5,571,661                       08/466,431                       11/05/96
5,571,678                       08/030,524                       11/05/96
5,571,680                       08/184,791                       11/05/96
5,571,689                       08/218,399                       11/05/96
5,571,711                       08/079,110                       11/05/96
5,571,755                       08/333,464                       11/05/96
5,571,756                       08/485,843                       11/05/96
5,571,759                       08/551,253                       11/05/96
5,571,769                       08/260,023                       11/05/96
5,571,771                       08/276,438                       11/05/96
5,571,777                       08/479,853                       11/05/96
5,571,781                       08/416,687                       11/05/96
5,571,800                       08/330,510                       11/05/96
5,571,810                       08/422,545                       11/05/96
5,571,820                       08/428,119                       11/05/96
5,571,830                       08/586,119                       11/05/96
5,571,833                       08/167,890                       11/05/96
5,571,834                       08/186,177                       11/05/96
5,571,835                       08/315,059                       11/05/96
5,571,836                       08/438,661                       11/05/96
5,571,839                       08/034,399                       11/05/96
5,571,844                       08/354,741                       11/05/96
5,571,846                       08/351,484                       11/05/96
5,571,885                       08/398,635                       11/05/96
5,571,891                       08/417,305                       11/05/96
5,571,895                       08/172,328                       11/05/96
5,571,898                       08/500,565                       11/05/96
5,571,916                       08/271,988                       11/05/96
5,571,921                       08/470,372                       11/05/96
5,571,928                       08/504,380                       11/05/96
5,571,930                       08/534,216                       11/05/96
5,571,931                       08/435,251                       11/05/96
5,571,937                       08/242,664                       11/05/96
5,571,946                       08/301,851                       11/05/96
5,571,952                       08/418,112                       11/05/96
5,571,954                       08/433,446                       11/05/96
5,571,955                       08/418,015                       11/05/96
5,571,956                       08/310,235                       11/05/96
5,571,958                       08/422,550                       11/05/96
5,571,959                       08/188,753                       11/05/96
5,571,974                       08/369,670                       11/05/96
5,571,976                       08/352,486                       11/05/96
5,571,978                       08/471,872                       11/05/96
5,571,980                       07/832,997                       11/05/96
5,571,988                       08/417,835                       11/05/96
5,571,993                       08/167,942                       11/05/96
5,571,994                       08/183,134                       11/05/96
5,572,005                       08/381,127                       11/05/96
5,572,009                       08/326,001                       11/05/96
5,572,021                       08/432,501                       11/05/96
5,572,024                       08/522,597                       11/05/96
5,572,034                       08/486,406                       11/05/96
5,572,037                       08/383,411                       11/05/96
5,572,048                       08/153,047                       11/05/96
5,572,082                       08/340,043                       11/05/96
5,572,088                       08/459,187                       11/05/96
5,572,098                       08/561,564                       11/05/96
5,572,100                       08/330,521                       11/05/96
5,572,113                       08/285,532                       11/05/96
5,572,116                       08/345,220                       11/05/96
5,572,182                       08/197,867                       11/05/96
5,572,190                       08/408,642                       11/05/96
5,572,191                       08/214,826                       11/05/96
5,572,205                       08/040,188                       11/05/96
5,572,217                       08/253,093                       11/05/96
5,572,225                       08/515,145                       11/05/96
5,572,247                       08/224,732                       11/05/96
5,572,259                       08/329,826                       11/05/96
5,572,295                       08/370,436                       11/05/96
5,572,297                       08/363,879                       11/05/96
5,572,305                       08/323,933                       11/05/96
5,572,314                       08/308,696                       11/05/96
5,572,319                       08/327,612                       11/05/96
5,572,326                       08/149,831                       11/05/96
5,572,327                       08/384,270                       11/05/96
5,572,333                       08/614,940                       11/05/96
5,572,337                       08/358,542                       11/05/96
5,572,340                       08/284,886                       11/05/96
5,572,361                       07/962,286                       11/05/96
5,572,385                       08/264,218                       11/05/96
5,572,390                       08/590,962                       11/05/96
5,572,409                       08/319,860                       11/05/96
5,572,423                       08/376,693                       11/05/96
5,572,430                       07/905,888                       11/05/96
5,572,433                       08/087,288                       11/05/96
5,572,454                       08/353,266                       11/05/96
5,572,462                       08/510,259                       11/05/96
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5,572,595                       07/986,358                       11/05/96
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5,572,716                       08/217,955                       11/05/96
5,572,733                       08/247,695                       11/05/96
5,572,736                       08/414,554                       11/05/96