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 January 10, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

4,796,308                       07/150,733                       01/10/89
4,796,318                       07/119,692                       01/10/89
4,796,320                       07/139,859                       01/10/89
4,796,353                       07/079,029                       01/10/89
4,796,355                       07/096,468                       01/10/89
4,796,356                       07/090,193                       01/10/89
4,796,358                       07/169,787                       01/10/89
4,796,365                       07/104,379                       01/10/89
4,796,374                       07/101,432                       01/10/89
4,796,376                       07/090,087                       01/10/89
4,796,378                       06/571,134                       01/10/89
4,796,379                       07/080,223                       01/10/89
4,796,388                       07/071,365                       01/10/89
4,796,392                       07/117,215                       01/10/89
4,796,397                       07/098,794                       01/10/89
4,796,400                       07/088,563                       01/10/89
4,796,403                       07/090,705                       01/10/89
4,796,405                       07/101,234                       01/10/89
4,796,408                       07/078,445                       01/10/89
4,796,414                       07/068,066                       01/10/89
4,796,422                       07/194,886                       01/10/89
4,796,424                       07/076,712                       01/10/89
4,796,426                       06/631,218                       01/10/89
4,796,430                       07/085,536                       01/10/89
4,796,442                       06/937,851                       01/10/89
4,796,444                       06/901,313                       01/10/89
4,796,447                       07/071,417                       01/10/89
4,796,452                       07/029,859                       01/10/89
4,796,457                       07/063,716                       01/10/89
4,796,462                       07/014,531                       01/10/89
4,796,474                       07/092,395                       01/10/89
4,796,486                       06/887,803                       01/10/89
4,796,499                       07/033,700                       01/10/89
4,796,503                       07/062,088                       01/10/89
4,796,508                       07/014,603                       01/10/89
4,796,515                       07/002,740                       01/10/89
4,796,521                       07/112,941                       01/10/89
4,796,528                       07/056,785                       01/10/89
4,796,529                       06/937,550                       01/10/89
4,796,535                       07/062,450                       01/10/89
4,796,548                       06/608,053                       01/10/89
4,796,565                       07/069,800                       01/10/89
4,796,567                       07/067,717                       01/10/89
4,796,568                       07/171,597                       01/10/89
4,796,575                       07/111,253                       01/10/89
4,796,584                       07/012,548                       01/10/89
4,796,591                       07/087,031                       01/10/89
4,796,595                       07/013,931                       01/10/89
4,796,596                       07/093,815                       01/10/89
4,796,602                       07/123,744                       01/10/89
4,796,606                       07/089,792                       01/10/89
4,796,617                       06/688,484                       01/10/89
4,796,637                       07/062,967                       01/10/89
4,796,641                       07/069,728                       01/10/89
4,796,644                       06/884,128                       01/10/89
4,796,648                       07/030,120                       01/10/89
4,796,651                       07/175,234                       01/10/89
4,796,654                       07/141,946                       01/10/89
4,796,656                       07/017,324                       01/10/89
4,796,662                       07/197,268                       01/10/89
4,796,672                       06/896,147                       01/10/89
4,796,675                       07/147,649                       01/10/89
4,796,701                       07/079,728                       01/10/89
4,796,704                       07/027,231                       01/10/89
4,796,705                       07/089,522                       01/10/89
4,796,728                       07/073,399                       01/10/89
4,796,729                       07/084,924                       01/10/89
4,796,737                       07/025,639                       01/10/89
4,796,740                       07/013,292                       01/10/89
4,796,742                       07/063,816                       01/10/89
4,796,747                       07/024,415                       01/10/89
4,796,749                       07/120,139                       01/10/89
4,796,750                       07/079,923                       01/10/89
4,796,752                       07/127,809                       01/10/89
4,796,769                       07/064,561                       01/10/89
4,796,771                       07/143,316                       01/10/89
4,796,777                       07/138,150                       01/10/89
4,796,794                       07/061,689                       01/10/89
4,796,796                       07/033,142                       01/10/89
4,796,802                       07/066,829                       01/10/89
4,796,814                       07/094,651                       01/10/89
4,796,819                       07/121,078                       01/10/89
4,796,833                       07/093,599                       01/10/89
4,796,851                       07/003,266                       01/10/89
4,796,853                       07/136,331                       01/10/89
4,796,863                       06/922,201                       01/10/89
4,796,864                       07/113,254                       01/10/89
4,796,876                       07/035,990                       01/10/89
4,796,883                       06/940,415                       01/10/89
4,796,891                       07/009,961                       01/10/89
4,796,895                       07/148,297                       01/10/89
4,796,900                       07/163,779                       01/10/89
4,796,914                       07/143,765                       01/10/89
4,796,925                       07/095,160                       01/10/89
4,796,942                       07/080,667                       01/10/89
4,796,943                       06/932,949                       01/10/89
4,796,951                       06/855,621                       01/10/89
4,796,955                       07/116,575                       01/10/89
4,796,957                       06/799,166                       01/10/89
4,796,973                       07/094,026                       01/10/89
4,796,975                       07/050,254                       01/10/89
4,796,983                       07/058,586                       01/10/89
4,796,988                       06/906,249                       01/10/89
4,797,001                       07/079,147                       01/10/89
4,797,006                       07/052,435                       01/10/89
4,797,008                       07/107,692                       01/10/89
4,797,014                       07/145,519                       01/10/89
4,797,022                       07/002,304                       01/10/89
4,797,031                       07/028,540                       01/10/89
4,797,033                       06/216,151                       01/10/89
4,797,037                       07/043,725                       01/10/89
4,797,038                       06/898,382                       01/10/89
4,797,042                       07/057,101                       01/10/89
4,797,045                       07/068,897                       01/10/89
4,797,047                       07/150,439                       01/10/89
4,797,054                       06/874,000                       01/10/89
4,797,055                       06/943,568                       01/10/89
4,797,057                       06/767,740                       01/10/89
4,797,060                       07/107,868                       01/10/89
4,797,061                       07/013,136                       01/10/89
4,797,063                       07/054,742                       01/10/89
4,797,085                       07/033,664                       01/10/89
4,797,106                       06/902,488                       01/10/89
4,797,114                       07/020,803                       01/10/89
4,797,120                       07/132,390                       01/10/89
4,797,123                       07/178,786                       01/10/89
4,797,125                       07/055,163                       01/10/89
4,797,133                       06/946,999                       01/10/89
4,797,134                       07/089,598                       01/10/89
4,797,140                       06/896,371                       01/10/89
4,797,144                       07/075,518                       01/10/89
4,797,167                       06/881,834                       01/10/89
4,797,169                       07/067,696                       01/10/89
4,797,173                       06/874,649                       01/10/89
4,797,174                       07/038,996                       01/10/89
4,797,176                       07/083,166                       01/10/89
4,797,189                       07/131,759                       01/10/89
4,797,202                       07/019,461                       01/10/89
4,797,204                       07/167,959                       01/10/89
4,797,213                       07/017,844                       01/10/89
4,797,217                       06/895,839                       01/10/89
4,797,219                       07/041,983                       01/10/89
4,797,230                       06/867,836                       01/10/89
4,797,234                       07/064,859                       01/10/89
4,797,236                       06/810,892                       01/10/89
4,797,237                       07/045,387                       01/10/89
4,797,239                       07/036,877                       01/10/89
4,797,252                       06/910,238                       01/10/89
4,797,266                       06/894,164                       01/10/89
4,797,272                       06/798,501                       01/10/89
4,797,273                       06/928,217                       01/10/89
4,797,289                       07/023,686                       01/10/89
4,797,290                       07/036,935                       01/10/89
4,797,292                       07/088,947                       01/10/89
4,797,319                       06/816,533                       01/10/89
4,797,324                       07/149,255                       01/10/89
4,797,325                       06/807,465                       01/10/89
4,797,330                       07/023,039                       01/10/89
4,797,332                       07/097,521                       01/10/89
4,797,340                       07/071,520                       01/10/89
4,797,345                       07/068,397                       01/10/89
4,797,346                       07/051,224                       01/10/89
4,797,351                       06/856,779                       01/10/89
4,797,356                       06/803,818                       01/10/89
4,797,359                       06/493,251                       01/10/89
4,797,360                       06/936,764                       01/10/89
4,797,362                       06/870,018                       01/10/89
4,797,380                       07/022,073                       01/10/89
4,797,381                       07/079,551                       01/10/89
4,797,400                       07/062,573                       01/10/89
4,797,408                       06/875,911                       01/10/89
4,797,415                       06/891,276                       01/10/89
4,797,428                       07/065,228                       01/10/89
4,797,436                       06/934,109                       01/10/89
4,797,443                       06/728,548                       01/10/89
4,797,444                       07/010,452                       01/10/89
4,797,453                       07/063,687                       01/10/89
4,797,465                       06/938,050                       01/10/89
4,797,466                       07/011,907                       01/10/89
4,797,468                       07/130,905                       01/10/89
4,797,473                       06/878,420                       01/10/89
4,797,478                       07/029,496                       01/10/89
4,797,479                       06/852,881                       01/10/89
4,797,482                       07/039,518                       01/10/89
4,797,486                       07/108,172                       01/10/89
4,797,489                       07/127,740                       01/10/89
4,797,491                       06/840,604                       01/10/89
4,797,493                       07/038,364                       01/10/89
4,797,495                       07/128,638                       01/10/89
4,797,500                       07/184,115                       01/10/89
4,797,508                       07/090,043                       01/10/89
4,797,527                       06/825,288                       01/10/89
4,797,528                       07/130,016                       01/10/89
4,797,530                       06/939,969                       01/10/89
4,797,531                       07/094,528                       01/10/89
4,797,535                       07/126,786                       01/10/89
4,797,550                       07/117,263                       01/10/89
4,797,559                       07/117,264                       01/10/89
4,797,570                       07/080,031                       01/10/89
4,797,571                       07/063,779                       01/10/89
4,797,575                       06/938,626                       01/10/89
4,797,576                       07/081,877                       01/10/89
4,797,590                       07/117,951                       01/10/89
4,797,591                       06/927,067                       01/10/89
4,797,596                       07/093,214                       01/10/89
4,797,602                       07/013,706                       01/10/89
4,797,604                       07/130,417                       01/10/89
4,797,628                       07/173,062                       01/10/89
4,797,632                       07/112,869                       01/10/89
4,797,633                       07/028,551                       01/10/89
4,797,645                       06/794,231                       01/10/89
4,797,654                       07/044,617                       01/10/89
4,797,664                       07/095,885                       01/10/89
4,797,671                       07/003,644                       01/10/89
4,797,680                       06/776,264                       01/10/89
4,797,683                       06/913,898                       01/10/89
4,797,689                       07/138,626                       01/10/89
4,797,695                       07/105,503                       01/10/89
4,797,711                       07/094,519                       01/10/89
4,797,716                       07/059,365                       01/10/89
4,797,720                       06/288,001                       01/10/89
4,797,723                       07/096,212                       01/10/89
4,797,727                       06/521,510                       01/10/89
4,797,728                       06/886,077                       01/10/89
4,797,736                       07/092,233                       01/10/89
4,797,750                       06/852,738                       01/10/89
4,797,754                       06/941,645                       01/10/89
4,797,755                       06/914,471                       01/10/89
4,797,759                       06/911,150                       01/10/89
4,797,761                       06/874,003                       01/10/89
4,797,764                       06/823,190                       01/10/89
4,797,778                       07/058,874                       01/10/89
4,797,782                       07/054,178                       01/10/89
4,797,783                       07/106,891                       01/10/89
4,797,784                       07/101,893                       01/10/89
4,797,786                       07/102,239                       01/10/89
4,797,789                       07/050,104                       01/10/89
4,797,796                       07/118,607                       01/10/89
4,797,799                       07/154,312                       01/10/89
4,797,801                       07/162,904                       01/10/89
4,797,802                       07/128,445                       01/10/89
4,797,812                       06/874,995                       01/10/89
4,797,817                       06/940,315                       01/10/89
4,797,820                       06/890,170                       01/10/89
4,797,824                       07/181,522                       01/10/89
4,797,827                       06/899,778                       01/10/89
4,797,838                       07/120,903                       01/10/89
4,797,842                       07/097,382                       01/10/89
4,797,851                       06/812,926                       01/10/89
4,797,855                       07/000,700                       01/10/89
4,797,861                       07/175,274                       01/10/89
4,797,862                       07/015,091                       01/10/89
4,797,872                       07/084,844                       01/10/89
4,797,881                       07/025,386                       01/10/89
4,797,887                       06/921,517                       01/10/89
4,797,890                       06/946,324                       01/10/89
4,797,891                       06/941,842                       01/10/89
4,797,895                       06/881,260                       01/10/89
4,797,900                       07/091,489                       01/10/89
4,797,903                       07/051,640                       01/10/89
4,797,905                       07/001,305                       01/10/89
4,797,914                       07/064,315                       01/10/89
4,797,921                       06/796,753                       01/10/89
4,797,936                       07/120,729                       01/10/89
4,797,939                       06/914,863                       01/10/89
4,797,940                       07/020,994                       01/10/89
4,797,946                       06/940,411                       01/10/89

                   PATENTS WHICH EXPIRED ON January 5, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,175,895                       07/515,861                       01/05/93
5,175,905                       07/732,784                       01/05/93
5,175,906                       07/531,945                       01/05/93
5,175,907                       07/703,262                       01/05/93
5,175,917                       07/808,482                       01/05/93
5,175,934                       07/887,480                       01/05/93
5,175,946                       07/757,849                       01/05/93
5,175,951                       07/633,418                       01/05/93
5,175,952                       07/731,991                       01/05/93
5,175,954                       07/859,094                       01/05/93
5,175,955                       07/818,868                       01/05/93
5,175,967                       07/694,772                       01/05/93
5,175,973                       07/690,072                       01/05/93
5,175,974                       07/826,348                       01/05/93
5,175,976                       07/706,810                       01/05/93
5,175,983                       07/808,957                       01/05/93
5,175,992                       07/662,704                       01/05/93
5,176,001                       07/767,895                       01/05/93
5,176,005                       07/917,430                       01/05/93
5,176,006                       07/826,881                       01/05/93
5,176,007                       07/814,440                       01/05/93
5,176,009                       07/827,469                       01/05/93
5,176,014                       07/669,472                       01/05/93
5,176,017                       07/543,836                       01/05/93
5,176,023                       07/819,724                       01/05/93
5,176,024                       07/557,569                       01/05/93
5,176,029                       07/880,234                       01/05/93
5,176,031                       07/609,270                       01/05/93
5,176,033                       07/576,852                       01/05/93
5,176,038                       07/690,916                       01/05/93
5,176,043                       07/613,834                       01/05/93
5,176,046                       07/750,863                       01/05/93
5,176,060                       07/793,886                       01/05/93
5,176,066                       07/654,688                       01/05/93
5,176,068                       07/561,187                       01/05/93
5,176,069                       07/892,136                       01/05/93
5,176,070                       07/806,604                       01/05/93
5,176,081                       07/673,815                       01/05/93
5,176,088                       07/819,248                       01/05/93
5,176,102                       07/853,588                       01/05/93
5,176,104                       07/460,186                       01/05/93
5,176,106                       07/606,514                       01/05/93
5,176,109                       07/836,616                       01/05/93
5,176,116                       07/812,691                       01/05/93
5,176,126                       07/594,059                       01/05/93
5,176,127                       07/646,561                       01/05/93
5,176,129                       07/663,382                       01/05/93
5,176,130                       07/775,295                       01/05/93
5,176,134                       07/798,819                       01/05/93
5,176,136                       07/741,145                       01/05/93
5,176,149                       07/814,331                       01/05/93
5,176,152                       07/607,292                       01/05/93
5,176,154                       07/687,009                       01/05/93
5,176,158                       07/783,940                       01/05/93
5,176,159                       07/766,732                       01/05/93
5,176,170                       07/740,447                       01/05/93
5,176,176                       07/792,342                       01/05/93
5,176,187                       07/601,838                       01/05/93
5,176,191                       07/733,671                       01/05/93
5,176,192                       07/624,312                       01/05/93
5,176,195                       07/868,547                       01/05/93
5,176,197                       07/771,808                       01/05/93
5,176,218                       07/708,641                       01/05/93
5,176,227                       07/739,338                       01/05/93
5,176,228                       07/643,532                       01/05/93
5,176,235                       07/688,644                       01/05/93
5,176,244                       07/760,150                       01/05/93
5,176,245                       07/732,084                       01/05/93
5,176,248                       07/827,752                       01/05/93
5,176,252                       07/795,236                       01/05/93
5,176,259                       07/884,151                       01/05/93
5,176,261                       07/638,311                       01/05/93
5,176,264                       07/787,363                       01/05/93
5,176,265                       07/879,893                       01/05/93
5,176,268                       07/713,695                       01/05/93
5,176,272                       07/698,918                       01/05/93
5,176,275                       07/494,301                       01/05/93
5,176,280                       07/680,532                       01/05/93
5,176,283                       07/832,436                       01/05/93
5,176,284                       07/610,510                       01/05/93
5,176,286                       07/747,684                       01/05/93
5,176,294                       07/645,265                       01/05/93
5,176,295                       07/798,984                       01/05/93
5,176,297                       07/537,567                       01/05/93
5,176,298                       07/721,634                       01/05/93
5,176,301                       07/715,681                       01/05/93
5,176,304                       07/802,480                       01/05/93
5,176,309                       07/704,094                       01/05/93
5,176,312                       07/745,052                       01/05/93
5,176,313                       07/421,470                       01/05/93
5,176,317                       07/720,661                       01/05/93
5,176,323                       07/685,096                       01/05/93
5,176,326                       07/627,334                       01/05/93
5,176,327                       07/764,973                       01/05/93
5,176,329                       07/818,942                       01/05/93
5,176,332                       07/452,619                       01/05/93
5,176,334                       07/710,521                       01/05/93
5,176,346                       07/709,625                       01/05/93
5,176,353                       07/676,585                       01/05/93
5,176,356                       07/798,967                       01/05/93
5,176,361                       07/674,094                       01/05/93
5,176,362                       07/691,890                       01/05/93
5,176,364                       07/575,118                       01/05/93
5,176,369                       07/810,108                       01/05/93
5,176,379                       07/755,545                       01/05/93
5,176,380                       07/717,345                       01/05/93
5,176,382                       07/236,359                       01/05/93
5,176,385                       07/754,751                       01/05/93
5,176,387                       07/678,023                       01/05/93
5,176,388                       07/802,900                       01/05/93
5,176,397                       07/736,296                       01/05/93
5,176,400                       07/727,649                       01/05/93
5,176,403                       07/648,984                       01/05/93
5,176,413                       07/689,787                       01/05/93
5,176,418                       07/814,648                       01/05/93
5,176,424                       07/898,399                       01/05/93
5,176,425                       07/726,154                       01/05/93
5,176,428                       07/774,901                       01/05/93
5,176,430                       07/613,069                       01/05/93
5,176,438                       07/800,275                       01/05/93
5,176,440                       07/834,482                       01/05/93
5,176,444                       07/711,862                       01/05/93
5,176,445                       07/565,945                       01/05/93
5,176,465                       07/572,394                       01/05/93
5,176,466                       07/908,205                       01/05/93
5,176,472                       07/706,269                       01/05/93
5,176,476                       07/411,260                       01/05/93
5,176,477                       07/639,451                       01/05/93
5,176,478                       07/675,162                       01/05/93
5,176,490                       07/705,436                       01/05/93
5,176,501                       07/628,353                       01/05/93
5,176,503                       07/866,509                       01/05/93
5,176,508                       07/736,586                       01/05/93
5,176,511                       07/795,040                       01/05/93
5,176,528                       07/896,940                       01/05/93
5,176,530                       07/765,132                       01/05/93
5,176,535                       07/841,854                       01/05/93
5,176,536                       07/715,490                       01/05/93
5,176,539                       07/853,581                       01/05/93
5,176,545                       07/680,341                       01/05/93
5,176,554                       07/904,644                       01/05/93
5,176,560                       07/749,698                       01/05/93
5,176,561                       07/771,406                       01/05/93
5,176,568                       07/855,547                       01/05/93
5,176,569                       07/690,685                       01/05/93
5,176,573                       07/748,573                       01/05/93
5,176,576                       07/620,882                       01/05/93
5,176,578                       07/831,409                       01/05/93
5,176,580                       07/775,199                       01/05/93
5,176,581                       07/711,649                       01/05/93
5,176,589                       07/150,416                       01/05/93
5,176,592                       07/792,657                       01/05/93
5,176,595                       07/678,701                       01/05/93
5,176,599                       07/774,350                       01/05/93
5,176,602                       07/516,790                       01/05/93
5,176,603                       07/621,470                       01/05/93
5,176,604                       07/896,874                       01/05/93
5,176,618                       07/573,601                       01/05/93
5,176,630                       07/572,034                       01/05/93
5,176,640                       07/752,533                       01/05/93
5,176,647                       07/709,703                       01/05/93
5,176,649                       07/646,175                       01/05/93
5,176,659                       07/662,404                       01/05/93
5,176,661                       07/776,726                       01/05/93
5,176,665                       07/643,298                       01/05/93
5,176,673                       07/671,014                       01/05/93
5,176,675                       07/625,639                       01/05/93
5,176,676                       07/684,812                       01/05/93
5,176,683                       07/688,683                       01/05/93
5,176,688                       07/731,820                       01/05/93
5,176,691                       07/580,551                       01/05/93
5,176,697                       07/590,354                       01/05/93
5,176,715                       07/741,388                       01/05/93
5,176,717                       07/732,987                       01/05/93
5,176,728                       07/764,532                       01/05/93
5,176,729                       07/783,894                       01/05/93
5,176,734                       07/704,194                       01/05/93
5,176,737                       07/652,705                       01/05/93
5,176,740                       07/635,444                       01/05/93
5,176,741                       07/595,974                       01/05/93
5,176,744                       07/742,795                       01/05/93
5,176,772                       07/589,215                       01/05/93
5,176,773                       07/549,841                       01/05/93
5,176,776                       07/524,561                       01/05/93
5,176,779                       07/654,382                       01/05/93
5,176,781                       07/647,342                       01/05/93
5,176,802                       07/732,644                       01/05/93
5,176,804                       07/622,539                       01/05/93
5,176,808                       07/431,798                       01/05/93
5,176,810                       07/710,052                       01/05/93
5,176,811                       07/649,514                       01/05/93
5,176,823                       07/687,060                       01/05/93
5,176,826                       07/601,194                       01/05/93
5,176,827                       07/737,614                       01/05/93
5,176,834                       07/703,236                       01/05/93
5,176,854                       07/711,414                       01/05/93
5,176,856                       07/819,278                       01/05/93
5,176,864                       07/364,135                       01/05/93
5,176,869                       07/746,639                       01/05/93
5,176,871                       07/775,275                       01/05/93
5,176,872                       07/836,966                       01/05/93
5,176,873                       07/635,546                       01/05/93
5,176,884                       07/690,993                       01/05/93
5,176,888                       07/694,085                       01/05/93
5,176,892                       07/622,913                       01/05/93
5,176,893                       07/416,190                       01/05/93
5,176,895                       07/726,839                       01/05/93
5,176,896                       07/210,538                       01/05/93
5,176,898                       07/838,987                       01/05/93
5,176,899                       07/797,776                       01/05/93
5,176,908                       07/861,744                       01/05/93
5,176,909                       07/590,230                       01/05/93
5,176,918                       07/633,018                       01/05/93
5,176,931                       07/851,215                       01/05/93
5,176,933                       07/737,412                       01/05/93
5,176,937                       07/649,373                       01/05/93
5,176,941                       07/444,032                       01/05/93
5,176,948                       07/805,868                       01/05/93
5,176,959                       07/660,811                       01/05/93
5,176,960                       07/782,957                       01/05/93
5,176,991                       07/826,568                       01/05/93
5,176,992                       07/820,181                       01/05/93
5,177,003                       07/615,541                       01/05/93
5,177,004                       07/757,867                       01/05/93
5,177,008                       07/537,779                       01/05/93
5,177,009                       07/381,179                       01/05/93
5,177,018                       07/766,412                       01/05/93
5,177,019                       07/702,484                       01/05/93
5,177,034                       07/787,364                       01/05/93
5,177,049                       07/746,903                       01/05/93
5,177,062                       07/325,649                       01/05/93
5,177,069                       07/623,107                       01/05/93
5,177,070                       07/793,039                       01/05/93
5,177,077                       07/728,492                       01/05/93
5,177,082                       07/599,541                       01/05/93
5,177,084                       07/795,291                       01/05/93
5,177,085                       07/805,662                       01/05/93
5,177,087                       07/461,114                       01/05/93
5,177,089                       07/557,713                       01/05/93
5,177,094                       07/628,097                       01/05/93
5,177,096                       07/590,207                       01/05/93
5,177,102                       07/695,121                       01/05/93
5,177,103                       07/616,155                       01/05/93
5,177,110                       07/689,399                       01/05/93
5,177,113                       07/883,617                       01/05/93
5,177,115                       07/793,724                       01/05/93
5,177,116                       07/901,010                       01/05/93
5,177,127                       07/646,886                       01/05/93
5,177,129                       07/688,842                       01/05/93
5,177,131                       07/727,120                       01/05/93
5,177,135                       07/621,497                       01/05/93
5,177,139                       07/654,612                       01/05/93
5,177,145                       07/653,841                       01/05/93
5,177,156                       07/701,910                       01/05/93
5,177,157                       07/571,964                       01/05/93
5,177,158                       07/543,212                       01/05/93
5,177,161                       07/497,561                       01/05/93
5,177,173                       06/583,820                       01/05/93
5,177,175                       07/604,061                       01/05/93
5,177,184                       07/833,280                       01/05/93
5,177,198                       07/443,781                       01/05/93
5,177,209                       07/689,398                       01/05/93
5,177,210                       07/748,312                       01/05/93
5,177,220                       07/639,087                       01/05/93
5,177,222                       07/608,844                       01/05/93
5,177,227                       07/639,463                       01/05/93
5,177,232                       07/727,590                       01/05/93
5,177,233                       07/686,616                       01/05/93
5,177,238                       07/730,752                       01/05/93
5,177,242                       07/809,803                       01/05/93
5,177,245                       07/797,659                       01/05/93
5,177,257                       07/776,385                       01/05/93
5,177,268                       07/863,896                       01/05/93
5,177,286                       07/544,270                       01/05/93
5,177,287                       07/786,072                       01/05/93
5,177,291                       07/798,508                       01/05/93
5,177,294                       07/700,290                       01/05/93
5,177,295                       07/812,262                       01/05/93
5,177,300                       07/790,905                       01/05/93
5,177,304                       07/557,561                       01/05/93
5,177,306                       07/405,698                       01/05/93
5,177,318                       07/777,081                       01/05/93
5,177,326                       07/779,909                       01/05/93
5,177,329                       07/706,908                       01/05/93
5,177,330                       07/730,395                       01/05/93
5,177,334                       07/755,225                       01/05/93
5,177,335                       07/465,507                       01/05/93
5,177,338                       07/803,668                       01/05/93
5,177,341                       07/159,916                       01/05/93
5,177,343                       07/630,252                       01/05/93
5,177,345                       07/664,914                       01/05/93
5,177,352                       07/711,235                       01/05/93
5,177,356                       07/764,193                       01/05/93
5,177,362                       07/608,987                       01/05/93
5,177,368                       07/779,239                       01/05/93
5,177,374                       07/592,148                       01/05/93
5,177,375                       07/628,696                       01/05/93
5,177,377                       07/700,426                       01/05/93
5,177,379                       07/723,578                       01/05/93
5,177,392                       07/640,752                       01/05/93
5,177,396                       07/630,148                       01/05/93
5,177,397                       07/458,464                       01/05/93
5,177,407                       07/289,951                       01/05/93
5,177,408                       07/732,829                       01/05/93
5,177,418                       07/619,984                       01/05/93
5,177,426                       07/279,108                       01/05/93
5,177,427                       07/673,939                       01/05/93
5,177,433                       07/643,787                       01/05/93
5,177,437                       07/564,812                       01/05/93
5,177,447                       07/610,213                       01/05/93
5,177,455                       07/823,967                       01/05/93
5,177,459                       07/690,785                       01/05/93
5,177,460                       07/460,997                       01/05/93
5,177,467                       07/804,037                       01/05/93
5,177,473                       07/676,448                       01/05/93
5,177,485                       07/566,346                       01/05/93
5,177,487                       07/644,370                       01/05/93
5,177,493                       07/663,334                       01/05/93
5,177,495                       07/439,177                       01/05/93
5,177,497                       07/686,761                       01/05/93
5,177,501                       07/604,642                       01/05/93
5,177,508                       07/770,668                       01/05/93
5,177,513                       07/850,904                       01/05/93
5,177,516                       07/769,729                       01/05/93
5,177,517                       07/722,578                       01/05/93
5,177,528                       07/887,789                       01/05/93
5,177,535                       07/687,735                       01/05/93
5,177,551                       07/759,359                       01/05/93
5,177,559                       07/701,936                       01/05/93
5,177,563                       07/305,472                       01/05/93
5,177,568                       07/738,604                       01/05/93
5,177,575                       07/622,074                       01/05/93
5,177,578                       07/574,865                       01/05/93
5,177,588                       07/785,952                       01/05/93
5,177,591                       07/747,733                       01/05/93
5,177,606                       07/766,068                       01/05/93
5,177,607                       07/748,886                       01/05/93
5,177,611                       07/560,943                       01/05/93
5,177,612                       07/709,947                       01/05/93
5,177,628                       07/513,731                       01/05/93
5,177,632                       07/680,306                       01/05/93
5,177,635                       07/578,580                       01/05/93
5,177,645                       07/770,601                       01/05/93
5,177,665                       07/769,962                       01/05/93
5,177,667                       07/783,631                       01/05/93
5,177,671                       07/771,350                       01/05/93
5,177,675                       07/778,311                       01/05/93
5,177,690                       07/465,143                       01/05/93
5,177,700                       07/814,265                       01/05/93
5,177,701                       07/788,439                       01/05/93
5,177,702                       07/555,325                       01/05/93
5,177,708                       07/260,132                       01/05/93
5,177,712                       07/876,552                       01/05/93
5,177,717                       07/754,229                       01/05/93
5,177,733                       07/688,033                       01/05/93
5,177,748                       07/740,973                       01/05/93
5,177,750                       07/737,625                       01/05/93
5,177,751                       07/694,092                       01/05/93
5,177,761                       07/778,499                       01/05/93
5,177,773                       07/674,406                       01/05/93
5,177,774                       07/749,277                       01/05/93
5,177,781                       07/586,007                       01/05/93
5,177,782                       07/575,076                       01/05/93
5,177,787                       07/771,851                       01/05/93
5,177,796                       07/600,480                       01/05/93
5,177,800                       07/534,738                       01/05/93
5,177,804                       07/850,465                       01/05/93
5,177,807                       07/779,232                       01/05/93

                   PATENTS WHICH EXPIRED ON January 7, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,590,423                       08/571,542                       01/07/97
5,590,426                       08/421,962                       01/07/97
5,590,434                       08/467,880                       01/07/97
5,590,436                       08/450,954                       01/07/97
5,590,439                       08/365,234                       01/07/97
5,590,440                       08/409,315                       01/07/97
5,590,445                       08/249,770                       01/07/97
5,590,446                       08/525,272                       01/07/97
5,590,450                       08/510,243                       01/07/97
5,590,454                       08/361,123                       01/07/97
5,590,455                       08/374,125                       01/07/97
5,590,463                       08/503,694                       01/07/97
5,590,471                       08/555,603                       01/07/97
5,590,477                       08/466,376                       01/07/97
5,590,481                       08/645,924                       01/07/97
5,590,486                       08/364,794                       01/07/97
5,590,498                       08/417,204                       01/07/97
5,590,499                       08/150,164                       01/07/97
5,590,505                       08/319,947                       01/07/97
5,590,523                       08/258,257                       01/07/97
5,590,536                       08/420,994                       01/07/97
5,590,542                       08/562,416                       01/07/97
5,590,549                       08/416,766                       01/07/97
5,590,550                       08/511,941                       01/07/97
5,590,554                       08/482,749                       01/07/97
5,590,557                       08/345,502                       01/07/97
5,590,559                       08/379,415                       01/07/97
5,590,563                       08/311,014                       01/07/97
5,590,565                       08/385,490                       01/07/97
5,590,566                       08/495,992                       01/07/97
5,590,569                       08/487,879                       01/07/97
5,590,570                       08/326,989                       01/07/97
5,590,573                       08/414,344                       01/07/97
5,590,574                       08/523,771                       01/07/97
5,590,583                       08/506,294                       01/07/97
5,590,588                       08/397,694                       01/07/97
5,590,593                       08/364,120                       01/07/97
5,590,594                       08/521,879                       01/07/97
5,590,595                       08/507,764                       01/07/97
5,590,612                       08/509,710                       01/07/97
5,590,613                       08/454,134                       01/07/97
5,590,619                       08/517,126                       01/07/97
5,590,621                       08/514,840                       01/07/97
5,590,635                       08/605,893                       01/07/97
5,590,639                       08/117,165                       01/07/97
5,590,646                       08/572,635                       01/07/97
5,590,650                       08/345,065                       01/07/97
5,590,669                       08/516,934                       01/07/97
5,590,673                       08/438,490                       01/07/97
5,590,674                       08/539,530                       01/07/97
5,590,682                       08/623,909                       01/07/97
5,590,683                       08/320,666                       01/07/97
5,590,686                       08/433,933                       01/07/97
5,590,698                       08/523,241                       01/07/97
5,590,700                       08/559,296                       01/07/97
5,590,702                       08/492,480                       01/07/97
5,590,710                       08/361,302                       01/07/97
5,590,714                       08/602,154                       01/07/97
5,590,717                       08/570,080                       01/07/97
5,590,734                       08/362,243                       01/07/97
5,590,740                       08/370,422                       01/07/97
5,590,744                       08/552,025                       01/07/97
5,590,748                       08/407,590                       01/07/97
5,590,760                       08/364,254                       01/07/97
5,590,761                       08/640,541                       01/07/97
5,590,764                       08/514,699                       01/07/97
5,590,767                       08/508,922                       01/07/97
5,590,769                       08/618,551                       01/07/97
5,590,773                       08/516,258                       01/07/97
5,590,774                       08/466,783                       01/07/97
5,590,780                       08/493,790                       01/07/97
5,590,781                       08/376,964                       01/07/97
5,590,782                       08/423,425                       01/07/97
5,590,786                       08/533,733                       01/07/97
5,590,791                       08/382,243                       01/07/97
5,590,794                       08/415,482                       01/07/97
5,590,795                       08/492,225                       01/07/97
5,590,801                       07/991,139                       01/07/97
5,590,803                       08/271,362                       01/07/97
5,590,804                       08/300,711                       01/07/97
5,590,810                       08/545,283                       01/07/97
5,590,811                       08/530,942                       01/07/97
5,590,812                       08/419,644                       01/07/97
5,590,813                       08/445,774                       01/07/97
5,590,817                       08/555,946                       01/07/97
5,590,819                       08/422,796                       01/07/97
5,590,824                       08/318,963                       01/07/97
5,590,829                       08/495,653                       01/07/97
5,590,833                       08/325,304                       01/07/97
5,590,834                       08/279,592                       01/07/97
5,590,836                       08/369,152                       01/07/97
5,590,839                       08/184,943                       01/07/97
5,590,840                       08/465,544                       01/07/97
5,590,860                       08/426,842                       01/07/97
5,590,862                       08/342,342                       01/07/97
5,590,865                       08/316,794                       01/07/97
5,590,869                       08/574,651                       01/07/97
5,590,875                       08/512,614                       01/07/97
5,590,877                       08/646,091                       01/07/97
5,590,880                       08/551,922                       01/07/97
5,590,882                       08/461,433                       01/07/97
5,590,884                       08/582,153                       01/07/97
5,590,886                       08/510,101                       01/07/97
5,590,890                       08/061,583                       01/07/97
5,590,894                       08/179,386                       01/07/97
5,590,895                       08/396,831                       01/07/97
5,590,897                       08/354,043                       01/07/97
5,590,905                       08/349,944                       01/07/97
5,590,906                       08/579,450                       01/07/97
5,590,907                       08/541,604                       01/07/97
5,590,916                       08/492,163                       01/07/97
5,590,919                       08/373,114                       01/07/97
5,590,935                       08/536,260                       01/07/97
5,590,937                       08/533,011                       01/07/97
5,590,940                       08/572,652                       01/07/97
5,590,946                       08/396,461                       01/07/97
5,590,947                       08/538,282                       01/07/97
5,590,949                       08/549,151                       01/07/97
5,590,950                       08/502,814                       01/07/97
5,590,952                       08/559,455                       01/07/97
5,590,955                       08/113,432                       01/07/97
5,590,967                       08/434,910                       01/07/97
5,590,972                       08/555,871                       01/07/97
5,590,983                       08/523,462                       01/07/97
5,590,987                       08/284,513                       01/07/97
5,590,989                       08/602,234                       01/07/97
5,591,005                       08/511,456                       01/07/97
5,591,006                       08/562,527                       01/07/97
5,591,011                       08/529,794                       01/07/97
5,591,017                       08/317,174                       01/07/97
5,591,023                       08/541,966                       01/07/97
5,591,033                       08/391,771                       01/07/97
5,591,048                       08/570,362                       01/07/97
5,591,073                       08/571,660                       01/07/97
5,591,075                       08/524,403                       01/07/97
5,591,087                       08/192,834                       01/07/97
5,591,095                       08/595,972                       01/07/97
5,591,108                       08/605,866                       01/07/97
5,591,110                       08/397,379                       01/07/97
5,591,128                       08/397,916                       01/07/97
5,591,133                       08/257,352                       01/07/97
5,591,134                       08/496,223                       01/07/97
5,591,143                       08/043,911                       01/07/97
5,591,153                       07/935,145                       01/07/97
5,591,171                       08/441,038                       01/07/97
5,591,173                       08/281,935                       01/07/97
5,591,177                       08/351,550                       01/07/97
5,591,185                       08/345,245                       01/07/97
5,591,186                       08/615,635                       01/07/97
5,591,187                       08/502,616                       01/07/97
5,591,190                       08/313,655                       01/07/97
5,591,191                       08/316,164                       01/07/97
5,591,193                       08/438,581                       01/07/97
5,591,200                       08/261,684                       01/07/97
5,591,208                       08/429,956                       01/07/97
5,591,209                       08/246,007                       01/07/97
5,591,210                       08/295,230                       01/07/97
5,591,228                       08/437,368                       01/07/97
5,591,241                       08/594,365                       01/07/97
5,591,242                       08/524,512                       01/07/97
5,591,243                       08/304,761                       01/07/97
5,591,245                       08/332,466                       01/07/97
5,591,270                       08/508,381                       01/07/97
5,591,278                       08/318,099                       01/07/97
5,591,283                       08/408,607                       01/07/97
5,591,286                       08/277,608                       01/07/97
5,591,300                       08/484,020                       01/07/97
5,591,326                       08/347,934                       01/07/97
5,591,333                       08/394,363                       01/07/97
5,591,339                       08/515,902                       01/07/97
5,591,350                       08/554,757                       01/07/97
5,591,356                       08/446,723                       01/07/97
5,591,375                       08/410,415                       01/07/97
5,591,377                       08/515,024                       01/07/97
5,591,387                       08/288,204                       01/07/97
5,591,390                       08/481,567                       01/07/97
5,591,404                       08/097,414                       01/07/97
5,591,413                       08/460,881                       01/07/97
5,591,415                       08/260,954                       01/07/97
5,591,425                       08/407,698                       01/07/97
5,591,427                       08/211,524                       01/07/97
5,591,437                       08/441,735                       01/07/97
5,591,446                       08/420,334                       01/07/97
5,591,448                       08/345,465                       01/07/97
5,591,450                       08/473,208                       01/07/97
5,591,472                       08/516,170                       01/07/97
5,591,482                       08/197,983                       01/07/97
5,591,483                       08/298,764                       01/07/97
5,591,485                       08/422,402                       01/07/97
5,591,495                       08/480,832                       01/07/97
5,591,506                       08/438,922                       01/07/97
5,591,513                       08/303,443                       01/07/97
5,591,520                       08/430,701                       01/07/97
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