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 December 13, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                        Issue
Number                         Number                        Date

4,790,038                      07/082,078                    12/13/88
4,790,065                      06/311,712                    12/13/88
4,790,068                      07/128,902                    12/13/88
4,790,078                      07/007,465                    12/13/88
4,790,087                      06/896,509                    12/13/88
4,790,092                      06/896,321                    12/13/88
4,790,094                      06/937,360                    12/13/88
4,790,098                      07/118,155                    12/13/88
4,790,102                      07/072,731                    12/13/88
4,790,104                      07/133,186                    12/13/88
4,790,107                      06/921,123                    12/13/88
4,790,112                      07/074,869                    12/13/88
4,790,116                      07/031,069                    12/13/88
4,790,132                      07/074,243                    12/13/88
4,790,144                      06/930,754                    12/13/88
4,790,146                      07/000,995                    12/13/88
4,790,153                      07/119,869                    12/13/88
4,790,157                      07/050,869                    12/13/88
4,790,158                      06/919,080                    12/13/88
4,790,165                      07/106,366                    12/13/88
4,790,174                      07/053,137                    12/13/88
4,790,175                      06/752,172                    12/13/88
4,790,177                      07/106,476                    12/13/88
4,790,185                      06/864,192                    12/13/88
4,790,194                      07/044,625                    12/13/88
4,790,206                      07/129,857                    12/13/88
4,790,214                      06/890,651                    12/13/88
4,790,239                      07/035,833                    12/13/88
4,790,240                      07/184,683                    12/13/88
4,790,243                      07/067,978                    12/13/88
4,790,257                      06/923,124                    12/13/88
4,790,259                      07/162,137                    12/13/88
4,790,285                      06/863,507                    12/13/88
4,790,299                      06/935,257                    12/13/88
4,790,301                      07/113,213                    12/13/88
4,790,310                      07/010,868                    12/13/88
4,790,315                      06/903,028                    12/13/88
4,790,316                      07/049,325                    12/13/88
4,790,321                      06/930,413                    12/13/88
4,790,323                      06/926,078                    12/13/88
4,790,325                      07/074,363                    12/13/88
4,790,329                      07/062,443                    12/13/88
4,790,331                      06/936,854                    12/13/88
4,790,333                      06/519,480                    12/13/88
4,790,339                      07/097,052                    12/13/88
4,790,343                      07/031,266                    12/13/88
4,790,351                      07/183,351                    12/13/88
4,790,367                      07/149,288                    12/13/88
4,790,371                      06/515,069                    12/13/88
4,790,372                      06/941,377                    12/13/88
4,790,380                      07/097,671                    12/13/88
4,790,381                      07/118,757                    12/13/88
4,790,382                      07/112,585                    12/13/88
4,790,384                      07/042,191                    12/13/88
4,790,387                      06/592,534                    12/13/88
4,790,388                      07/069,927                    12/13/88
4,790,397                      07/047,420                    12/13/88
4,790,401                      07/092,221                    12/13/88
4,790,413                      07/111,737                    12/13/88
4,790,418                      07/044,094                    12/13/88
4,790,433                      07/099,727                    12/13/88
4,790,443                      07/047,435                    12/13/88
4,790,452                      07/127,209                    12/13/88
4,790,463                      07/067,863                    12/13/88
4,790,474                      07/032,590                    12/13/88
4,790,478                      07/088,114                    12/13/88
4,790,483                      07/078,041                    12/13/88
4,790,485                      07/017,351                    12/13/88
4,790,489                      07/040,596                    12/13/88
4,790,491                      06/908,776                    12/13/88
4,790,493                      07/103,969                    12/13/88
4,790,503                      07/174,873                    12/13/88
4,790,513                      06/751,875                    12/13/88
4,790,520                      06/933,898                    12/13/88
4,790,529                      07/003,726                    12/13/88
4,790,530                      07/038,025                    12/13/88
4,790,531                      06/932,869                    12/13/88
4,790,555                      07/101,982                    12/13/88
4,790,559                      07/140,638                    12/13/88
4,790,566                      06/786,853                    12/13/88
4,790,567                      07/136,860                    12/13/88
4,790,568                      06/891,541                    12/13/88
4,790,573                      07/065,990                    12/13/88
4,790,577                      07/161,496                    12/13/88
4,790,583                      06/943,630                    12/13/88
4,790,613                      07/000,790                    12/13/88
4,790,624                      06/926,357                    12/13/88
4,790,637                      06/941,255                    12/13/88
4,790,646                      06/571,680                    12/13/88
4,790,647                      06/805,854                    12/13/88
4,790,648                      07/081,780                    12/13/88
4,790,654                      07/074,812                    12/13/88
4,790,662                      07/067,610                    12/13/88
4,790,670                      06/690,676                    12/13/88
4,790,672                      06/944,683                    12/13/88
4,790,680                      07/136,667                    12/13/88
4,790,688                      07/007,793                    12/13/88
4,790,692                      07/021,753                    12/13/88
4,790,694                      06/916,779                    12/13/88
4,790,704                      07/099,869                    12/13/88
4,790,712                      06/889,336                    12/13/88
4,790,723                      07/002,537                    12/13/88
4,790,751                      07/119,201                    12/13/88
4,790,760                      07/065,239                    12/13/88
4,790,768                      07/051,564                    12/13/88
4,790,770                      07/037,703                    12/13/88
4,790,779                      07/046,969                    12/13/88
4,790,782                      07/160,834                    12/13/88
4,790,784                      06/884,916                    12/13/88
4,790,788                      07/147,292                    12/13/88
4,790,791                      07/064,009                    12/13/88
4,790,792                      06/564,537                    12/13/88
4,790,793                      07/053,213                    12/13/88
4,790,802                      07/097,287                    12/13/88
4,790,808                      07/058,435                    12/13/88
4,790,814                      07/035,993                    12/13/88
4,790,818                      06/720,019                    12/13/88
4,790,830                      07/077,493                    12/13/88
4,790,850                      07/064,634                    12/13/88
4,790,858                      07/149,808                    12/13/88
4,790,876                      07/068,366                    12/13/88
4,790,881                      07/018,651                    12/13/88
4,790,885                      06/753,079                    12/13/88
4,790,886                      07/124,584                    12/13/88
4,790,905                      06/918,612                    12/13/88
4,790,911                      07/131,649                    12/13/88
4,790,913                      07/071,974                    12/13/88
4,790,914                      06/781,173                    12/13/88
4,790,921                      06/827,832                    12/13/88
4,790,924                      07/138,101                    12/13/88
4,790,928                      07/153,395                    12/13/88
4,790,937                      06/865,364                    12/13/88
4,790,945                      07/047,398                    12/13/88
4,790,948                      06/918,204                    12/13/88
4,790,958                      07/050,642                    12/13/88
4,790,961                      06/894,878                    12/13/88
4,790,962                      06/814,154                    12/13/88
4,790,964                      07/175,954                    12/13/88
4,790,968                      06/916,338                    12/13/88
4,790,975                      07/002,404                    12/13/88
4,790,981                      07/050,081                    12/13/88
4,790,997                      07/069,264                    12/13/88
4,790,998                      06/945,344                    12/13/88
4,791,006                      07/058,194                    12/13/88
4,791,013                      06/939,047                    12/13/88
4,791,016                      07/016,916                    12/13/88
4,791,026                      07/122,255                    12/13/88
4,791,031                      07/113,661                    12/13/88
4,791,039                      07/014,695                    12/13/88
4,791,041                      07/058,421                    12/13/88
4,791,052                      07/030,510                    12/13/88
4,791,056                      06/593,762                    12/13/88
4,791,059                      06/844,389                    12/13/88
4,791,067                      07/066,306                    12/13/88
4,791,070                      07/011,508                    12/13/88
4,791,075                      07/104,478                    12/13/88
4,791,077                      06/826,636                    12/13/88
4,791,080                      07/078,224                    12/13/88
4,791,081                      06/947,788                    12/13/88
4,791,082                      07/109,839                    12/13/88
4,791,101                      06/746,793                    12/13/88
4,791,106                      07/066,908                    12/13/88
4,791,108                      07/037,320                    12/13/88
4,791,110                      06/859,558                    12/13/88
4,791,113                      07/057,889                    12/13/88
4,791,122                      06/816,916                    12/13/88
4,791,123                      07/006,565                    12/13/88
4,791,128                      07/143,314                    12/13/88
4,791,130                      07/038,376                    12/13/88
4,791,142                      07/082,042                    12/13/88
4,791,149                      06/929,252                    12/13/88
4,791,161                      06/867,601                    12/13/88
4,791,162                      06/682,181                    12/13/88
4,791,163                      07/047,837                    12/13/88
4,791,174                      07/030,487                    12/13/88
4,791,175                      07/015,818                    12/13/88
4,791,177                      06/911,216                    12/13/88
4,791,179                      07/093,171                    12/13/88
4,791,197                      06/751,208                    12/13/88
4,791,209                      06/860,210                    12/13/88
4,791,226                      06/587,947                    12/13/88
4,791,253                      07/117,177                    12/13/88
4,791,262                      07/070,550                    12/13/88
4,791,266                      06/907,739                    12/13/88
4,791,269                      07/046,516                    12/13/88
4,791,277                      07/012,444                    12/13/88
4,791,288                      07/042,833                    12/13/88
4,791,295                      07/154,050                    12/13/88
4,791,299                      07/020,732                    12/13/88
4,791,312                      07/059,073                    12/13/88
4,791,319                      07/044,105                    12/13/88
4,791,320                      06/897,460                    12/13/88
4,791,324                      07/036,626                    12/13/88
4,791,330                      07/156,001                    12/13/88
4,791,333                      07/009,000                    12/13/88
4,791,335                      07/148,863                    12/13/88
4,791,336                      07/066,072                    12/13/88
4,791,353                      07/085,443                    12/13/88
4,791,354                      07/091,664                    12/13/88
4,791,356                      06/909,940                    12/13/88
4,791,367                      07/073,734                    12/13/88
4,791,368                      07/027,430                    12/13/88
4,791,370                      06/768,873                    12/13/88
4,791,372                      07/086,368                    12/13/88
4,791,377                      07/110,396                    12/13/88
4,791,384                      07/036,195                    12/13/88
4,791,389                      07/054,717                    12/13/88
4,791,397                      07/068,617                    12/13/88
4,791,399                      06/869,184                    12/13/88
4,791,401                      07/003,863                    12/13/88
4,791,410                      07/044,278                    12/13/88
4,791,415                      06/921,008                    12/13/88
4,791,422                      06/886,258                    12/13/88
4,791,427                      06/800,938                    12/13/88
4,791,442                      07/136,660                    12/13/88
4,791,455                      07/014,691                    12/13/88
4,791,459                      07/000,143                    12/13/88
4,791,468                      07/153,523                    12/13/88
4,791,470                      07/063,752                    12/13/88
4,791,471                      07/158,043                    12/13/88
4,791,475                      06/849,461                    12/13/88
4,791,477                      07/189,409                    12/13/88
4,791,491                      07/009,778                    12/13/88
4,791,494                      06/605,977                    12/13/88
4,791,496                      06/849,823                    12/13/88
4,791,508                      07/096,978                    12/13/88
4,791,518                      07/053,746                    12/13/88
4,791,524                      07/121,990                    12/13/88
4,791,525                      07/115,692                    12/13/88
4,791,529                      07/045,923                    12/13/88
4,791,549                      07/123,287                    12/13/88
4,791,555                      07/021,621                    12/13/88
4,791,562                      06/804,347                    12/13/88
4,791,564                      07/161,387                    12/13/88
4,791,566                      07/032,152                    12/13/88
4,791,568                      06/780,402                    12/13/88
4,791,569                      06/840,583                    12/13/88
4,791,570                      06/873,032                    12/13/88
4,791,576                      07/036,679                    12/13/88
4,791,585                      06/706,331                    12/13/88
4,791,590                      06/799,692                    12/13/88
4,791,596                      06/758,810                    12/13/88
4,791,606                      07/092,078                    12/13/88
4,791,607                      06/804,489                    12/13/88
4,791,609                      07/036,521                    12/13/88
4,791,610                      06/866,507                    12/13/88
4,791,612                      06/942,895                    12/13/88
4,791,614                      07/063,035                    12/13/88
4,791,622                      07/075,273                    12/13/88
4,791,624                      06/945,110                    12/13/88
4,791,630                      06/911,710                    12/13/88
4,791,638                      07/106,692                    12/13/88
4,791,643                      06/947,409                    12/13/88
4,791,651                      07/052,686                    12/13/88
4,791,655                      07/137,687                    12/13/88
4,791,674                      07/108,776                    12/13/88
4,791,677                      06/941,625                    12/13/88

                   PATENTS WHICH EXPIRED ON December 8, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,168,581                      07/706,928                    12/08/92
5,168,583                      07/377,850                    12/08/92
5,168,584                      07/765,573                    12/08/92
5,168,587                      07/884,382                    12/08/92
5,168,594                      07/545,700                    12/08/92
5,168,595                      07/697,252                    12/08/92
5,168,601                      07/915,679                    12/08/92
5,168,610                      07/793,349                    12/08/92
5,168,612                      07/731,159                    12/08/92
5,168,613                      07/763,004                    12/08/92
5,168,615                      07/737,429                    12/08/92
5,168,616                      07/727,953                    12/08/92
5,168,631                      07/893,939                    12/08/92
5,168,633                      07/747,734                    12/08/92
5,168,637                      07/799,330                    12/08/92
5,168,646                      07/798,011                    12/08/92
5,168,648                      07/671,724                    12/08/92
5,168,649                      07/838,524                    12/08/92
5,168,650                      07/712,489                    12/08/92
5,168,657                      07/689,469                    12/08/92
5,168,659                      07/676,278                    12/08/92
5,168,660                      07/897,490                    12/08/92
5,168,663                      07/401,814                    12/08/92
5,168,664                      07/791,790                    12/08/92
5,168,671                      07/833,008                    12/08/92
5,168,679                      07/697,948                    12/08/92
5,168,681                      07/569,881                    12/08/92
5,168,682                      07/593,828                    12/08/92
5,168,684                      07/706,351                    12/08/92
5,168,687                      07/733,189                    12/08/92
5,168,690                      07/772,419                    12/08/92
5,168,691                      07/610,362                    12/08/92
5,168,694                      07/528,138                    12/08/92
5,168,701                      07/674,162                    12/08/92
5,168,702                      07/633,345                    12/08/92
5,168,703                      07/463,259                    12/08/92
5,168,707                      07/616,185                    12/08/92
5,168,708                      07/763,645                    12/08/92
5,168,710                      07/802,099                    12/08/92
5,168,711                      07/712,235                    12/08/92
5,168,717                      07/791,419                    12/08/92
5,168,720                      07/715,429                    12/08/92
5,168,727                      07/773,677                    12/08/92
5,168,731                      07/685,604                    12/08/92
5,168,734                      07/716,210                    12/08/92
5,168,739                      07/744,459                    12/08/92
5,168,748                      07/692,538                    12/08/92
5,168,750                      07/745,223                    12/08/92
5,168,754                      07/816,001                    12/08/92
5,168,756                      07/653,535                    12/08/92
5,168,758                      07/708,374                    12/08/92
5,168,760                      07/786,641                    12/08/92
5,168,764                      07/559,228                    12/08/92
5,168,766                      07/660,939                    12/08/92
5,168,767                      07/706,616                    12/08/92
5,168,775                      07/715,642                    12/08/92
5,168,777                      07/680,732                    12/08/92
5,168,778                      07/752,064                    12/08/92
5,168,779                      07/844,179                    12/08/92
5,168,782                      07/678,675                    12/08/92
5,168,783                      07/828,289                    12/08/92
5,168,792                      07/768,034                    12/08/92
5,168,797                      07/881,207                    12/08/92
5,168,813                      07/689,875                    12/08/92
5,168,817                      07/697,934                    12/08/92
5,168,820                      07/613,674                    12/08/92
5,168,823                      07/678,135                    12/08/92
5,168,832                      07/735,535                    12/08/92
5,168,837                      07/901,179                    12/08/92
5,168,838                      07/781,406                    12/08/92
5,168,843                      07/808,669                    12/08/92
5,168,844                      07/702,407                    12/08/92
5,168,847                      07/845,883                    12/08/92
5,168,849                      07/858,889                    12/08/92
5,168,850                      07/688,902                    12/08/92
5,168,853                      07/864,308                    12/08/92
5,168,857                      07/873,497                    12/08/92
5,168,859                      07/646,722                    12/08/92
5,168,860                      07/711,683                    12/08/92
5,168,863                      07/572,705                    12/08/92
5,168,875                      07/684,001                    12/08/92
5,168,879                      07/607,217                    12/08/92
5,168,885                      07/635,480                    12/08/92
5,168,894                      07/676,503                    12/08/92
5,168,902                      07/659,011                    12/08/92
5,168,909                      07/681,915                    12/08/92
5,168,912                      07/683,866                    12/08/92
5,168,915                      07/764,208                    12/08/92
5,168,922                      07/460,887                    12/08/92
5,168,924                      07/723,081                    12/08/92
5,168,925                      07/799,154                    12/08/92
5,168,930                      07/635,672                    12/08/92
5,168,935                      07/696,121                    12/08/92
5,168,939                      07/574,361                    12/08/92
5,168,949                      07/686,661                    12/08/92
5,168,951                      07/669,021                    12/08/92
5,168,954                      07/682,083                    12/08/92
5,168,960                      07/672,114                    12/08/92
5,168,963                      07/693,644                    12/08/92
5,168,969                      07/806,278                    12/08/92
5,168,972                      07/813,478                    12/08/92
5,168,980                      07/763,176                    12/08/92
5,168,990                      07/710,104                    12/08/92
5,168,991                      07/773,177                    12/08/92
5,168,997                      07/843,607                    12/08/92
5,168,999                      07/723,460                    12/08/92
5,169,001                      07/732,590                    12/08/92
5,169,007                      07/851,895                    12/08/92
5,169,009                      07/861,063                    12/08/92
5,169,010                      07/824,511                    12/08/92
5,169,011                      07/536,594                    12/08/92
5,169,024                      07/600,940                    12/08/92
5,169,025                      07/824,390                    12/08/92
5,169,026                      07/858,221                    12/08/92
5,169,032                      07/840,785                    12/08/92
5,169,034                      07/653,405                    12/08/92
5,169,036                      07/850,750                    12/08/92
5,169,039                      07/692,311                    12/08/92
5,169,045                      07/814,636                    12/08/92
5,169,048                      07/831,686                    12/08/92
5,169,049                      07/749,965                    12/08/92
5,169,052                      07/741,773                    12/08/92
5,169,053                      07/613,780                    12/08/92
5,169,063                      07/820,228                    12/08/92
5,169,073                      07/622,604                    12/08/92
5,169,087                      07/739,874                    12/08/92
5,169,097                      07/618,641                    12/08/92
5,169,098                      07/837,003                    12/08/92
5,169,099                      07/808,817                    12/08/92
5,169,100                      07/698,828                    12/08/92
5,169,101                      07/708,657                    12/08/92
5,169,107                      07/642,588                    12/08/92
5,169,108                      07/701,473                    12/08/92
5,169,109                      07/795,196                    12/08/92
5,169,111                      07/854,878                    12/08/92
5,169,117                      07/842,539                    12/08/92
5,169,123                      07/810,356                    12/08/92
5,169,125                      07/664,872                    12/08/92
5,169,128                      07/880,430                    12/08/92
5,169,132                      07/853,194                    12/08/92
5,169,136                      07/789,009                    12/08/92
5,169,148                      07/795,465                    12/08/92
5,169,151                      07/829,425                    12/08/92
5,169,152                      07/799,194                    12/08/92
5,169,154                      07/707,827                    12/08/92
5,169,155                      07/796,765                    12/08/92
5,169,156                      07/654,745                    12/08/92
5,169,163                      07/720,172                    12/08/92
5,169,169                      07/652,577                    12/08/92
5,169,171                      07/702,905                    12/08/92
5,169,174                      07/742,835                    12/08/92
5,169,177                      07/644,022                    12/08/92
5,169,188                      07/746,537                    12/08/92
5,169,189                      07/794,521                    12/08/92
5,169,190                      07/779,889                    12/08/92
5,169,191                      07/784,892                    12/08/92
5,169,194                      07/623,440                    12/08/92
5,169,199                      07/649,418                    12/08/92
5,169,207                      07/761,639                    12/08/92
5,169,211                      07/671,378                    12/08/92
5,169,219                      07/731,429                    12/08/92
5,169,223                      07/566,473                    12/08/92
5,169,224                      07/728,628                    12/08/92
5,169,226                      07/878,392                    12/08/92
5,169,233                      07/775,330                    12/08/92
5,169,245                      07/699,831                    12/08/92
5,169,248                      07/606,953                    12/08/92
5,169,251                      07/740,060                    12/08/92
5,169,255                      07/654,384                    12/08/92
5,169,258                      07/648,104                    12/08/92
5,169,264                      07/888,327                    12/08/92
5,169,271                      07/734,970                    12/08/92
5,169,274                      07/503,432                    12/08/92
5,169,277                      07/668,934                    12/08/92
5,169,279                      07/719,750                    12/08/92
5,169,282                      07/780,459                    12/08/92
5,169,283                      07/749,857                    12/08/92
5,169,290                      07/788,912                    12/08/92
5,169,299                      07/778,530                    12/08/92
5,169,305                      07/676,697                    12/08/92
5,169,307                      07/688,822                    12/08/92
5,169,310                      07/757,863                    12/08/92
5,169,311                      07/545,401                    12/08/92
5,169,313                      07/874,702                    12/08/92
5,169,317                      07/617,645                    12/08/92
5,169,320                      07/766,831                    12/08/92
5,169,323                      07/715,388                    12/08/92
5,169,330                      07/895,155                    12/08/92
5,169,331                      07/694,063                    12/08/92
5,169,332                      07/762,142                    12/08/92
5,169,356                      07/731,982                    12/08/92
5,169,361                      07/894,548                    12/08/92
5,169,364                      07/712,925                    12/08/92
5,169,367                      07/791,723                    12/08/92
5,169,371                      07/733,012                    12/08/92
5,169,380                      07/664,504                    12/08/92
5,169,387                      07/680,151                    12/08/92
5,169,388                      07/535,396                    12/08/92
5,169,390                      07/526,129                    12/08/92
5,169,412                      07/794,911                    12/08/92
5,169,413                      07/772,336                    12/08/92
5,169,415                      07/575,586                    12/08/92
5,169,417                      07/656,100                    12/08/92
5,169,418                      07/765,809                    12/08/92
5,169,424                      07/519,733                    12/08/92
5,169,425                      07/716,534                    12/08/92
5,169,426                      07/576,197                    12/08/92
5,169,432                      07/704,548                    12/08/92
5,169,433                      07/553,630                    12/08/92
5,169,435                      07/055,796                    12/08/92
5,169,438                      07/714,876                    12/08/92
5,169,448                      07/781,373                    12/08/92
5,169,449                      07/560,367                    12/08/92
5,169,454                      07/499,540                    12/08/92
5,169,455                      07/866,904                    12/08/92
5,169,458                      07/473,865                    12/08/92
5,169,459                      07/729,391                    12/08/92
5,169,460                      07/826,751                    12/08/92
5,169,461                      07/711,633                    12/08/92
5,169,466                      07/677,084                    12/08/92
5,169,467                      07/569,949                    12/08/92
5,169,478                      07/611,386                    12/08/92
5,169,484                      07/521,948                    12/08/92
5,169,488                      07/704,884                    12/08/92
5,169,502                      07/613,881                    12/08/92
5,169,504                      07/615,302                    12/08/92
5,169,506                      07/689,145                    12/08/92
5,169,523                      07/681,804                    12/08/92
5,169,526                      07/767,385                    12/08/92
5,169,533                      07/718,795                    12/08/92
5,169,536                      07/874,942                    12/08/92
5,169,545                      07/753,133                    12/08/92
5,169,553                      07/708,321                    12/08/92
5,169,554                      07/417,614                    12/08/92
5,169,558                      07/695,210                    12/08/92
5,169,569                      07/740,517                    12/08/92
5,169,574                      07/742,112                    12/08/92
5,169,581                      07/609,529                    12/08/92
5,169,585                      07/689,043                    12/08/92
5,169,590                      07/616,881                    12/08/92
5,169,599                      07/576,359                    12/08/92
5,169,606                      07/660,550                    12/08/92
5,169,607                      07/647,505                    12/08/92
5,169,608                      07/587,900                    12/08/92
5,169,611                      07/635,992                    12/08/92
5,169,613                      07/651,311                    12/08/92
5,169,614                      07/179,344                    12/08/92
5,169,615                      07/605,747                    12/08/92
5,169,618                      07/820,174                    12/08/92
5,169,619                      07/655,238                    12/08/92
5,169,624                      07/662,880                    12/08/92
5,169,630                      07/599,357                    12/08/92
5,169,634                      07/829,514                    12/08/92
5,169,643                      07/515,623                    12/08/92
5,169,651                      07/703,176                    12/08/92
5,169,655                      07/781,907                    12/08/92
5,169,661                      07/651,411                    12/08/92
5,169,663                      07/851,856                    12/08/92
5,169,665                      07/629,304                    12/08/92
5,169,666                      07/791,691                    12/08/92
5,169,667                      07/850,230                    12/08/92
5,169,668                      07/513,701                    12/08/92
5,169,676                      07/702,663                    12/08/92
5,169,677                      07/604,145                    12/08/92
5,169,682                      07/672,333                    12/08/92
5,169,685                      07/607,972                    12/08/92
5,169,686                      07/674,503                    12/08/92
5,169,696                      07/786,581                    12/08/92
5,169,699                      07/526,299                    12/08/92
5,169,713                      07/654,664                    12/08/92
5,169,717                      07/634,118                    12/08/92
5,169,720                      07/665,498                    12/08/92
5,169,722                      07/620,358                    12/08/92
5,169,723                      07/510,010                    12/08/92
5,169,732                      07/649,907                    12/08/92
5,169,735                      07/487,730                    12/08/92
5,169,741                      07/696,994                    12/08/92
5,169,748                      07/788,000                    12/08/92
5,169,749                      07/686,499                    12/08/92
5,169,752                      07/668,386                    12/08/92
5,169,753                      07/816,649                    12/08/92
5,169,755                      07/207,630                    12/08/92
5,169,767                      07/801,616                    12/08/92
5,169,772                      07/726,646                    12/08/92
5,169,777                      07/573,970                    12/08/92
5,169,791                      07/585,522                    12/08/92
5,169,799                      07/684,508                    12/08/92
5,169,800                      07/629,795                    12/08/92
5,169,804                      07/756,042                    12/08/92
5,169,805                      07/706,637                    12/08/92
5,169,814                      07/417,423                    12/08/92
5,169,819                      07/773,647                    12/08/92
5,169,823                      07/721,332                    12/08/92
5,169,828                      07/682,389                    12/08/92
5,169,830                      07/567,958                    12/08/92
5,169,831                      07/825,578                    12/08/92
5,169,832                      07/217,926                    12/08/92
5,169,842                      07/697,870                    12/08/92
5,169,843                      07/879,408                    12/08/92
5,169,847                      07/797,963                    12/08/92
5,169,848                      07/504,020                    12/08/92
5,169,852                      07/628,692                    12/08/92
5,169,855                      07/506,961                    12/08/92
5,169,859                      07/730,922                    12/08/92
5,169,861                      07/645,433                    12/08/92
5,169,865                      07/323,421                    12/08/92
5,169,866                      07/713,568                    12/08/92
5,169,875                      07/429,399                    12/08/92
5,169,877                      07/638,858                    12/08/92
5,169,889                      07/826,571                    12/08/92
5,169,896                      07/861,549                    12/08/92
5,169,907                      07/614,787                    12/08/92
5,169,909                      07/826,344                    12/08/92
5,169,914                      07/865,826                    12/08/92
5,169,919                      07/705,001                    12/08/92
5,169,920                      07/687,352                    12/08/92
5,169,922                      07/445,610                    12/08/92
5,169,926                      07/684,110                    12/08/92
5,169,932                      07/545,239                    12/08/92
5,169,938                      07/184,768                    12/08/92
5,169,942                      07/795,575                    12/08/92
5,169,944                      07/685,083                    12/08/92
5,169,949                      07/769,028                    12/08/92
5,169,954                      07/807,608                    12/08/92
5,169,959                      07/764,181                    12/08/92
5,169,962                      07/583,524                    12/08/92
5,169,964                      07/333,008                    12/08/92
5,169,968                      07/194,793                    12/08/92
5,169,972                      07/621,350                    12/08/92
5,169,973                      07/685,379                    12/08/92
5,169,977                      07/669,247                    12/08/92
5,169,984                      07/579,630                    12/08/92
5,169,985                      07/873,884                    12/08/92
5,169,988                      07/865,389                    12/08/92
5,169,990                      07/833,769                    12/08/92
5,170,001                      07/714,924                    12/08/92
5,170,015                      07/724,912                    12/08/92
5,170,022                      07/709,205                    12/08/92
5,170,026                      07/735,560                    12/08/92
5,170,035                      07/619,235                    12/08/92
5,170,036                      07/684,039                    12/08/92
5,170,039                      07/533,356                    12/08/92
5,170,041                      07/585,655                    12/08/92
5,170,045                      07/670,439                    12/08/92
5,170,046                      07/620,219                    12/08/92
5,170,051                      07/635,577                    12/08/92
5,170,058                      07/784,867                    12/08/92
5,170,059                      07/606,911                    12/08/92
5,170,060                      07/770,935                    12/08/92
5,170,064                      07/720,428                    12/08/92
5,170,070                      07/651,369                    12/08/92
5,170,071                      07/716,717                    12/08/92
5,170,086                      07/696,783                    12/08/92
5,170,107                      07/799,656                    12/08/92
5,170,112                      07/757,592                    12/08/92
5,170,113                      07/702,360                    12/08/92
5,170,141                      07/785,009                    12/08/92
5,170,147                      07/632,155                    12/08/92
5,170,162                      07/558,455                    12/08/92
5,170,168                      07/686,316                    12/08/92
5,170,179                      07/649,696                    12/08/92
5,170,185                      07/708,138                    12/08/92
5,170,202                      07/548,451                    12/08/92
5,170,208                      07/738,663                    12/08/92
5,170,215                      07/770,670                    12/08/92
5,170,218                      07/677,696                    12/08/92
5,170,221                      07/713,155                    12/08/92
5,170,227                      07/493,540                    12/08/92
5,170,235                      07/747,652                    12/08/92
5,170,237                      07/608,557                    12/08/92
5,170,241                      07/623,295                    12/08/92
5,170,245                      07/653,978                    12/08/92
5,170,253                      07/637,786                    12/08/92
5,170,256                      07/691,878                    12/08/92
5,170,261                      07/616,658                    12/08/92
5,170,272                      07/667,143                    12/08/92
5,170,279                      07/786,554                    12/08/92
5,170,281                      07/682,260                    12/08/92
5,170,289                      07/649,492                    12/08/92
5,170,290                      07/746,294                    12/08/92
5,170,291                      07/717,027                    12/08/92
5,170,318                      07/783,490                    12/08/92
5,170,321                      07/632,728                    12/08/92
5,170,323                      07/731,827                    12/08/92
5,170,338                      07/434,694                    12/08/92
5,170,356                      07/568,079                    12/08/92
5,170,366                      07/690,643                    12/08/92
5,170,377                      07/855,720                    12/08/92
5,170,388                      07/557,094                    12/08/92
5,170,391                      07/595,193                    12/08/92
5,170,400                      07/456,170                    12/08/92
5,170,421                      07/800,500                    12/08/92
5,170,430                      07/637,656                    12/08/92
5,170,435                      07/844,893                    12/08/92
5,170,438                      07/673,531                    12/08/92
5,170,441                      07/668,245                    12/08/92
5,170,443                      07/625,512                    12/08/92
5,170,464                      07/794,617                    12/08/92
5,170,472                      07/693,997                    12/08/92
5,170,476                      07/468,021                    12/08/92
5,170,477                      07/430,693                    12/08/92
5,170,480                      07/411,729                    12/08/92
5,170,481                      07/367,828                    12/08/92
5,170,483                      07/391,141                    12/08/92
5,170,486                      07/502,752                    12/08/92
5,170,489                      07/789,629                    12/08/92

                  PATENTS WHICH EXPIRED ON December 10, 2000
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,581,806                      08/400,866                    12/10/96
5,581,807                      08/476,701                    12/10/96
5,581,811                      08/512,104                    12/10/96
5,581,813                      08/504,598                    12/10/96
5,581,814                      08/574,325                    12/10/96
5,581,821                      08/494,346                    12/10/96
5,581,822                      08/485,990                    12/10/96
5,581,823                      08/563,497                    12/10/96
5,581,825                      08/456,675                    12/10/96
5,581,828                      08/308,121                    12/10/96
5,581,831                      08/567,312                    12/10/96
5,581,832                      08/158,448                    12/10/96
5,581,834                      08/373,590                    12/10/96
5,581,835                      08/354,826                    12/10/96
5,581,837                      08/493,070                    12/10/96
5,581,839                      08/564,483                    12/10/96
5,581,840                      08/571,676                    12/10/96
5,581,841                      08/408,815                    12/10/96
5,581,844                      08/506,327                    12/10/96
5,581,845                      08/445,709                    12/10/96
5,581,846                      08/431,744                    12/10/96
5,581,847                      08/494,347                    12/10/96
5,581,848                      08/531,190                    12/10/96
5,581,853                      08/273,508                    12/10/96
5,581,859                      08/602,016                    12/10/96
5,581,865                      08/382,700                    12/10/96
5,581,868                      08/345,203                    12/10/96
5,581,881                      08/323,645                    12/10/96
5,581,883                      08/395,138                    12/10/96
5,581,884                      08/403,473                    12/10/96
5,581,887                      08/498,848                    12/10/96
5,581,888                      08/399,688                    12/10/96
5,581,892                      08/453,200                    12/10/96
5,581,893                      08/534,120                    12/10/96
5,581,899                      08/211,103                    12/10/96
5,581,900                      08/453,647                    12/10/96
5,581,915                      08/529,272                    12/10/96
5,581,917                      08/544,628                    12/10/96
5,581,919                      08/383,315                    12/10/96
5,581,922                      08/371,953                    12/10/96
5,581,928                      08/409,595                    12/10/96
5,581,929                      08/406,994                    12/10/96
5,581,933                      08/440,902                    12/10/96
5,581,936                      08/495,722                    12/10/96
5,581,940                      08/572,889                    12/10/96
5,581,949                      08/552,129                    12/10/96
5,581,956                      08/382,969                    12/10/96
5,581,957                      08/174,789                    12/10/96
5,581,964                      07/972,163                    12/10/96
5,581,965                      08/455,111                    12/10/96
5,581,970                      08/527,854                    12/10/96
5,581,981                      08/150,997                    12/10/96
5,581,985                      08/490,834                    12/10/96
5,581,992                      08/559,035                    12/10/96
5,582,002                      08/453,524                    12/10/96
5,582,008                      08/323,865                    12/10/96
5,582,010                      08/529,110                    12/10/96
5,582,019                      08/436,731                    12/10/96
5,582,023                      08/387,340                    12/10/96
5,582,025                      08/493,254                    12/10/96
5,582,037                      08/073,138                    12/10/96
5,582,041                      08/529,748                    12/10/96
5,582,043                      08/441,200                    12/10/96
5,582,044                      08/577,065                    12/10/96
5,582,045                      08/527,777                    12/10/96
5,582,047                      08/129,372                    12/10/96
5,582,059                      08/357,318                    12/10/96
5,582,062                      08/431,362                    12/10/96
5,582,070                      08/498,938                    12/10/96
5,582,074                      08/504,523                    12/10/96
5,582,080                      08/312,280                    12/10/96
5,582,081                      08/512,917                    12/10/96
5,582,084                      08/491,236                    12/10/96
5,582,088                      08/257,928                    12/10/96
5,582,094                      08/501,487                    12/10/96
5,582,095                      08/578,108                    12/10/96
5,582,104                      08/158,839                    12/10/96
5,582,106                      08/438,970                    12/10/96
5,582,107                      08/555,850                    12/10/96
5,582,110                      08/533,378                    12/10/96
5,582,116                      08/187,284                    12/10/96
5,582,118                      08/280,227                    12/10/96
5,582,122                      08/444,711                    12/10/96
5,582,124                      08/506,751                    12/10/96
5,582,132                      08/495,826                    12/10/96
5,582,133                      08/343,704                    12/10/96
5,582,135                      08/463,923                    12/10/96
5,582,139                      08/385,653                    12/10/96
5,582,140                      08/434,570                    12/10/96
5,582,142                      08/429,855                    12/10/96
5,582,143                      08/389,170                    12/10/96
5,582,153                      08/454,357                    12/10/96
5,582,157                      08/530,234                    12/10/96
5,582,160                      08/570,492                    12/10/96
5,582,165                      07/852,181                    12/10/96
5,582,167                      08/204,481                    12/10/96
5,582,171                      08/272,764                    12/10/96
5,582,187                      08/419,723                    12/10/96
5,582,197                      08/502,646                    12/10/96
5,582,198                      08/426,947                    12/10/96
5,582,209                      08/323,466                    12/10/96
5,582,210                      08/406,889                    12/10/96
5,582,219                      08/094,774                    12/10/96
5,582,225                      08/445,889                    12/10/96
5,582,226                      08/564,900                    12/10/96
5,582,233                      08/392,081                    12/10/96
5,582,239                      08/441,417                    12/10/96
5,582,244                      08/389,049                    12/10/96
5,582,250                      08/556,152                    12/10/96
5,582,253                      08/459,396                    12/10/96
5,582,254                      08/537,761                    12/10/96
5,582,290                      08/282,812                    12/10/96
5,582,291                      08/413,077                    12/10/96
5,582,292                      08/317,743                    12/10/96
5,582,293                      08/583,311                    12/10/96
5,582,297                      08/264,742                    12/10/96
5,582,301                      08/338,236                    12/10/96
5,582,304                      08/353,825                    12/10/96
5,582,309                      08/119,158                    12/10/96
5,582,313                      08/318,653                    12/10/96
5,582,317                      08/452,268                    12/10/96
5,582,318                      08/308,632                    12/10/96
5,582,320                      08/391,688                    12/10/96
5,582,321                      08/577,138                    12/10/96
5,582,325                      08/424,396                    12/10/96
5,582,326                      08/444,412                    12/10/96
5,582,328                      08/292,028                    12/10/96
5,582,330                      08/365,571                    12/10/96
5,582,336                      08/413,858                    12/10/96
5,582,342                      08/392,746                    12/10/96
5,582,356                      08/521,853                    12/10/96
5,582,360                      08/298,229                    12/10/96
5,582,363                      08/499,039                    12/10/96
5,582,374                      08/440,081                    12/10/96
5,582,377                      07/860,070                    12/10/96
5,582,381                      08/441,202                    12/10/96
5,582,382                      08/497,056                    12/10/96
5,582,390                      08/340,938                    12/10/96
5,582,392                      08/352,702                    12/10/96
5,582,394                      08/270,381                    12/10/96
5,582,395                      08/574,894                    12/10/96
5,582,396                      08/352,736                    12/10/96
5,582,405                      08/618,799                    12/10/96
5,582,406                      08/529,678                    12/10/96
5,582,409                      08/443,586                    12/10/96
5,582,410                      08/562,415                    12/10/96
5,582,417                      08/139,203                    12/10/96
5,582,418                      08/408,476                    12/10/96
5,582,421                      08/543,529                    12/10/96
5,582,430                      08/185,796                    12/10/96
5,582,433                      08/079,624                    12/10/96
5,582,436                      08/476,224                    12/10/96
5,582,442                      08/529,189                    12/10/96
5,582,446                      08/507,725                    12/10/96
5,582,453                      08/369,225                    12/10/96
5,582,454                      08/324,286                    12/10/96
5,582,460                      08/075,769                    12/10/96
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