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 main-
tenance 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 ap-
plicable surcharge.

                  PATENTS WHICH EXPIRED ON November 10, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                     Application                      Issue
Number                        Number                         Date

4,704,745                   07/013,724                   11/10/87
4,704,747                   06/874,062                   11/10/87
4,704,761                   06/882,484                   11/10/87
4,704,762                   06/892,177                   11/10/87
4,704,770                   06/927,127                   11/10/87
4,704,772                   06/924,972                   11/10/87
4,704,774                   07/032,750                   11/10/87
4,704,779                   06/904,504                   11/10/87
4,704,781                   06/892,701                   11/10/87
4,704,785                   06/893,437                   11/10/87
4,704,789                   06/832,888                   11/10/87
4,704,791                   06/836,376                   11/10/87
4,704,794                   06/750,157                   11/10/87
4,704,797                   06/898,190                   11/10/87
4,704,804                   06/589,260                   11/10/87
4,704,813                   06/916,372                   11/10/87
4,704,819                   06/856,932                   11/10/87
4,704,828                   06/872,229                   11/10/87
4,704,836                   06/829,658                   11/10/87
4,704,847                   06/806,531                   11/10/87
4,704,848                   06/750,788                   11/10/87
4,704,853                   06/879,112                   11/10/87
4,704,855                   06/874,297                   11/10/87
4,704,858                   06/914,279                   11/10/87
4,704,863                   06/810,766                   11/10/87
4,704,871                   06/848,001                   11/10/87
4,704,872                   06/934,585                   11/10/87
4,704,874                   06/905,241                   11/10/87
4,704,877                   06/914,278                   11/10/87
4,704,885                   06/906,575                   11/10/87
4,704,888                   06/859,839                   11/10/87
4,704,897                   06/911,256                   11/10/87
4,704,899                   06/692,061                   11/10/87
4,704,913                   06/844,464                   11/10/87
4,704,914                   06/839,968                   11/10/87
4,704,917                   06/800,456                   11/10/87
4,704,919                   06/841,273                   11/10/87
4,704,920                   06/854,353                   11/10/87
4,704,921                   06/849,783                   11/10/87
4,704,922                   06/925,359                   11/10/87
4,704,927                   06/746,622                   11/10/87
4,704,931                   06/874,589                   11/10/87
4,704,932                   06/920,147                   11/10/87
4,704,935                   06/914,823                   11/10/87
4,704,944                   06/884,665                   11/10/87
4,704,954                   06/928,968                   11/10/87
4,704,972                   07/003,340                   11/10/87
4,704,973                   06/884,953                   11/10/87
4,704,974                   06/900,022                   11/10/87
4,704,975                   06/865,550                   11/10/87
4,704,977                   06/890,348                   11/10/87
4,704,983                   06/772,871                   11/10/87
4,704,996                   06/820,868                   11/10/87
4,704,997                   06/878,079                   11/10/87
4,704,999                   06/870,143                   11/10/87
4,705,003                   06/788,485                   11/10/87
4,705,006                   06/367,980                   11/10/87
4,705,014                   06/687,482                   11/10/87
4,705,022                   06/911,971                   11/10/87
4,705,035                   06/902,766                   11/10/87
4,705,039                   06/759,416                   11/10/87
4,705,041                   06/910,154                   11/10/87
4,705,045                   06/832,763                   11/10/87
4,705,049                   06/892,993                   11/10/87
4,705,055                   06/802,427                   11/10/87
4,705,058                   06/869,415                   11/10/87
4,705,067                   06/862,760                   11/10/87
4,705,068                   06/923,414                   11/10/87
4,705,070                   06/940,037                   11/10/87
4,705,071                   06/806,568                   11/10/87
4,705,080                   06/899,554                   11/10/87
4,705,091                   06/758,374                   11/10/87
4,705,093                   06/875,727                   11/10/87
4,705,094                   06/888,142                   11/10/87
4,705,095                   06/817,514                   11/10/87
4,705,099                   06/726,774                   11/10/87
4,705,105                   06/860,622                   11/10/87
4,705,111                   06/896,996                   11/10/87
4,705,112                   06/892,870                   11/10/87
4,705,117                   06/801,167                   11/10/87
4,705,118                   06/803,403                   11/10/87
4,705,122                   06/818,628                   11/10/87
4,705,124                   06/899,529                   11/10/87
4,705,134                   06/855,056                   11/10/87
4,705,139                   06/904,902                   11/10/87
4,705,140                   07/028,124                   11/10/87
4,705,146                   06/596,176                   11/10/87
4,705,148                   06/683,915                   11/10/87
4,705,150                   06/749,965                   11/10/87
4,705,152                   06/866,222                   11/10/87
4,705,155                   06/686,680                   11/10/87
4,705,156                   06/798,573                   11/10/87
4,705,162                   06/929,800                   11/10/87
4,705,165                   06/781,740                   11/10/87
4,705,168                   06/400,386                   11/10/87
4,705,170                   06/895,507                   11/10/87
4,705,176                   06/880,730                   11/10/87
4,705,190                   07/006,369                   11/10/87
4,705,197                   06/890,232                   11/10/87
4,705,206                   06/810,295                   11/10/87
4,705,207                   06/919,760                   11/10/87
4,705,208                   07/010,072                   11/10/87
4,705,209                   06/904,353                   11/10/87
4,705,218                   06/871,687                   11/10/87
4,705,223                   06/798,480                   11/10/87
4,705,228                   06/791,810                   11/10/87
4,705,244                   06/865,273                   11/10/87
4,705,258                   06/760,676                   11/10/87
4,705,260                   06/617,830                   11/10/87
4,705,273                   06/779,583                   11/10/87
4,705,278                   06/912,593                   11/10/87
4,705,285                   06/807,635                   11/10/87
4,705,286                   06/946,453                   11/10/87
4,705,291                   06/887,905                   11/10/87
4,705,292                   06/839,598                   11/10/87
4,705,293                   06/801,542                   11/10/87
4,705,304                   06/819,615                   11/10/87
4,705,311                   06/833,254                   11/10/87
4,705,318                   06/832,393                   11/10/87
4,705,323                   06/873,385                   11/10/87
4,705,339                   06/876,525                   11/10/87
4,705,340                   06/922,836                   11/10/87
4,705,342                   06/797,277                   11/10/87
4,705,354                   06/764,073                   11/10/87
4,705,355                   06/906,998                   11/10/87
4,705,367                   06/863,213                   11/10/87
4,705,390                   06/910,288                   11/10/87
4,705,391                   06/785,838                   11/10/87
4,705,392                   06/901,895                   11/10/87
4,705,396                   06/610,295                   11/10/87
4,705,408                   07/026,180                   11/10/87
4,705,416                   06/832,232                   11/10/87
4,705,425                   06/912,835                   11/10/87
4,705,428                   06/837,406                   11/10/87
4,705,438                   06/898,221                   11/10/87
4,705,440                   06/810,511                   11/10/87
4,705,451                   06/936,963                   11/10/87
4,705,456                   06/894,624                   11/10/87
4,705,461                   06/287,836                   11/10/87
4,705,462                   06/795,017                   11/10/87
4,705,482                   06/816,618                   11/10/87
4,705,491                   06/816,349                   11/10/87
4,705,497                   06/868,094                   11/10/87
4,705,505                   06/930,739                   11/10/87
4,705,506                   06/798,228                   11/10/87
4,705,508                   06/781,774                   11/10/87
4,705,513                   06/879,459                   11/10/87
4,705,514                   06/821,073                   11/10/87
4,705,526                   06/876,034                   11/10/87
4,705,532                   07/009,105                   11/10/87
4,705,548                   06/856,087                   11/10/87
4,705,553                   07/015,542                   11/10/87
4,705,565                   06/881,158                   11/10/87
4,705,576                   06/926,918                   11/10/87
4,705,578                   06/852,876                   11/10/87
4,705,579                   06/827,488                   11/10/87
4,705,581                   06/851,159                   11/10/87
4,705,592                   06/943,227                   11/10/87
4,705,599                   06/900,444                   11/10/87
4,705,602                   06/801,626                   11/10/87
4,705,603                   06/848,968                   11/10/87
4,705,612                   06/826,579                   11/10/87
4,705,618                   06/849,568                   11/10/87
4,705,625                   06/793,198                   11/10/87
4,705,628                   06/849,068                   11/10/87
4,705,647                   06/878,578                   11/10/87
4,705,652                   06/867,111                   11/10/87
4,705,663                   06/801,140                   11/10/87
4,705,664                   06/927,076                   11/10/87
4,705,665                   06/808,585                   11/10/87
4,705,668                   06/900,784                   11/10/87
4,705,676                   06/769,197                   11/10/87
4,705,697                   06/878,416                   11/10/87
4,705,699                   07/017,178                   11/10/87
4,705,703                   06/880,264                   11/10/87
4,705,705                   06/853,408                   11/10/87
4,705,707                   06/810,101                   11/10/87
4,705,714                   06/836,914                   11/10/87
4,705,717                   06/838,809                   11/10/87
4,705,726                   07/010,074                   11/10/87
4,705,739                   06/856,046                   11/10/87
4,705,743                   06/681,032                   11/10/87
4,705,747                   06/832,432                   11/10/87
4,705,754                   06/897,827                   11/10/87
4,705,760                   06/871,316                   11/10/87
4,705,768                   07/004,514                   11/10/87
4,705,769                   06/902,801                   11/10/87
4,705,771                   06/816,506                   11/10/87
4,705,772                   06/891,010                   11/10/87
4,705,780                   06/889,281                   11/10/87
4,705,781                   06/916,967                   11/10/87
4,705,790                   06/780,063                   11/10/87
4,705,792                   06/878,854                   11/10/87
4,705,794                   06/470,886                   11/10/87
4,705,801                   06/784,984                   11/10/87
4,705,812                   06/681,914                   11/10/87
4,705,813                   06/681,946                   11/10/87
4,705,816                   06/854,726                   11/10/87
4,705,817                   06/921,199                   11/10/87
4,705,818                   06/845,506                   11/10/87
4,705,839                   07/032,892                   11/10/87
4,705,844                   06/904,685                   11/10/87
4,705,860                   06/838,893                   11/10/87
4,705,861                   06/798,253                   11/10/87
4,705,869                   06/762,031                   11/10/87
4,705,871                   06/894,591                   11/10/87
4,705,883                   06/820,850                   11/10/87
4,705,884                   06/878,862                   11/10/87
4,705,895                   06/937,805                   11/10/87
4,705,901                   06/900,474                   11/10/87
4,705,912                   06/909,255                   11/10/87
4,705,919                   06/704,329                   11/10/87
4,705,924                   06/873,347                   11/10/87
4,705,934                   06/713,288                   11/10/87
4,705,945                   06/824,488                   11/10/87
4,705,949                   06/802,091                   11/10/87
4,705,956                   06/716,413                   11/10/87
4,705,957                   06/895,418                   11/10/87
4,705,962                   06/918,235                   11/10/87
4,705,965                   06/780,528                   11/10/87
4,705,966                   06/772,790                   11/10/87
4,705,968                   06/738,718                   11/10/87
4,705,974                   06/715,869                   11/10/87
4,705,975                   06/890,311                   11/10/87
4,705,989                   06/812,858                   11/10/87
4,705,991                   06/382,735                   11/10/87
4,705,993                   06/853,406                   11/10/87
4,706,002                   06/862,200                   11/10/87
4,706,008                   06/940,329                   11/10/87
4,706,018                   06/667,506                   11/10/87
4,706,020                   06/800,006                   11/10/87
4,706,028                   06/784,064                   11/10/87
4,706,033                   06/865,087                   11/10/87
4,706,034                   06/852,388                   11/10/87
4,706,035                   06/838,728                   11/10/87
4,706,039                   06/838,729                   11/10/87
4,706,041                   06/868,212                   11/10/87
4,706,046                   06/866,351                   11/10/87
4,706,053                   06/846,774                   11/10/87
4,706,055                   06/824,019                   11/10/87
4,706,056                   06/906,023                   11/10/87
4,706,061                   06/901,215                   11/10/87
4,706,066                   06/793,873                   11/10/87
4,706,074                   06/820,467                   11/10/87
4,706,075                   06/629,088                   11/10/87
4,706,081                   06/682,061                   11/10/87
4,706,083                   06/858,879                   11/10/87
4,706,084                   06/783,485                   11/10/87
4,706,088                   06/842,961                   11/10/87
4,706,089                   06/842,951                   11/10/87
4,706,090                   06/693,099                   11/10/87
4,706,092                   06/836,918                   11/10/87
4,706,094                   06/730,401                   11/10/87
4,706,098                   06/914,272                   11/10/87
4,706,100                   06/891,829                   11/10/87
4,706,106                   06/743,747                   11/10/87
4,706,107                   06/830,919                   11/10/87
4,706,113                   06/826,916                   11/10/87
4,706,119                   06/774,788                   11/10/87
4,706,120                   06/771,433                   11/10/87
4,706,136                   06/840,049                   11/10/87
4,706,142                   06/780,292                   11/10/87
4,706,147                   06/753,228                   11/10/87
4,706,150                   06/933,309                   11/10/87
4,706,154                   06/798,658                   11/10/87
4,706,157                   06/871,548                   11/10/87
4,706,163                   07/018,635                   11/10/87
4,706,176                   06/882,800                   11/10/87
4,706,181                   07/010,067                   11/10/87
4,706,185                   06/859,926                   11/10/87
4,706,192                   06/727,762                   11/10/87
4,706,196                   06/763,795                   11/10/87
4,706,198                   06/707,859                   11/10/87
4,706,200                   06/768,118                   11/10/87
4,706,201                   06/776,205                   11/10/87
4,706,206                   06/643,243                   11/10/87
4,706,207                   06/748,003                   11/10/87
4,706,213                   06/655,158                   11/10/87
4,706,220                   06/829,253                   11/10/87
4,706,222                   06/852,052                   11/10/87
4,706,232                   06/919,408                   11/10/87
4,706,234                   06/838,107                   11/10/87
4,706,235                   06/694,875                   11/10/87
4,706,236                   06/826,040                   11/10/87
4,706,238                   06/876,374                   11/10/87
4,706,244                   06/692,597                   11/10/87
4,706,257                   06/802,294                   11/10/87
4,706,265                   06/792,760                   11/10/87
4,706,268                   06/676,834                   11/10/87
4,706,276                   06/813,186                   11/10/87
4,706,277                   06/813,187                   11/10/87
4,706,278                   06/813,188                   11/10/87
4,706,279                   06/813,176                   11/10/87
4,706,298                   06/889,211                   11/10/87

                   PATENTS WHICH EXPIRED ON November 5, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,062,158                   07/415,202                   11/05/91
5,062,166                   07/583,494                   11/05/91
5,062,172                   07/559,356                   11/05/91
5,062,178                   07/625,468                   11/05/91
5,062,179                   07/667,272                   11/05/91
5,062,183                   07/550,998                   11/05/91
5,062,184                   07/575,867                   11/05/91
5,062,186                   07/469,652                   11/05/91
5,062,191                   07/594,419                   11/05/91
5,062,201                   07/623,468                   11/05/91
5,062,203                   07/658,805                   11/05/91
5,062,204                   07/658,803                   11/05/91
5,062,211                   07/664,122                   11/05/91
5,062,222                   07/409,457                   11/05/91
5,062,231                   07/653,496                   11/05/91
5,062,240                   07/609,768                   11/05/91
5,062,245                   07/458,614                   11/05/91
5,062,247                   07/504,120                   11/05/91
5,062,251                   07/441,328                   11/05/91
5,062,254                   07/601,813                   11/05/91
5,062,256                   07/416,487                   11/05/91
5,062,258                   06/889,364                   11/05/91
5,062,260                   07/587,400                   11/05/91
5,062,261                   07/467,169                   11/05/91
5,062,269                   07/656,458                   11/05/91
5,062,272                   07/594,332                   11/05/91
5,062,275                   07/489,188                   11/05/91
5,062,285                   07/606,099                   11/05/91
5,062,286                   07/487,959                   11/05/91
5,062,295                   07/633,130                   11/05/91
5,062,299                   07/461,200                   11/05/91
5,062,303                   07/542,331                   11/05/91
5,062,304                   07/351,733                   11/05/91
5,062,305                   07/530,907                   11/05/91
5,062,308                   07/583,428                   11/05/91
5,062,313                   07/475,529                   11/05/91
5,062,315                   07/512,103                   11/05/91
5,062,317                   07/524,371                   11/05/91
5,062,318                   07/617,810                   11/05/91
5,062,319                   07/670,181                   11/05/91
5,062,322                   07/413,727                   11/05/91
5,062,324                   07/578,727                   11/05/91
5,062,329                   07/554,202                   11/05/91
5,062,333                   07/285,396                   11/05/91
5,062,336                   07/446,043                   11/05/91
5,062,341                   07/458,601                   11/05/91
5,062,342                   07/455,977                   11/05/91
5,062,346                   07/603,713                   11/05/91
5,062,347                   07/561,867                   11/05/91
5,062,348                   07/567,912                   11/05/91
5,062,351                   07/589,190                   11/05/91
5,062,366                   07/389,939                   11/05/91
5,062,369                   07/543,777                   11/05/91
5,062,371                   07/478,507                   11/05/91
5,062,375                   07/680,839                   11/05/91
5,062,378                   07/437,686                   11/05/91
5,062,381                   07/575,375                   11/05/91
5,062,386                   07/356,293                   11/05/91
5,062,389                   07/570,386                   11/05/91
5,062,394                   07/423,562                   11/05/91
5,062,407                   07/541,592                   11/05/91
5,062,408                   07/511,044                   11/05/91
5,062,409                   07/510,294                   11/05/91
5,062,429                   07/454,581                   11/05/91
5,062,430                   07/518,896                   11/05/91
5,062,433                   07/465,387                   11/05/91
5,062,435                   07/551,473                   11/05/91
5,062,440                   07/644,196                   11/05/91
5,062,442                   07/461,685                   11/05/91
5,062,445                   07/572,141                   11/05/91
5,062,446                   07/638,279                   11/05/91
5,062,454                   07/528,063                   11/05/91
5,062,461                   07/543,014                   11/05/91
5,062,463                   07/563,485                   11/05/91
5,062,468                   07/547,287                   11/05/91
5,062,472                   07/356,055                   11/05/91
5,062,478                   07/516,331                   11/05/91
5,062,480                   07/597,203                   11/05/91
5,062,491                   07/459,332                   11/05/91
5,062,492                   07/480,843                   11/05/91
5,062,494                   07/569,936                   11/05/91
5,062,498                   07/381,197                   11/05/91
5,062,500                   07/619,286                   11/05/91
5,062,501                   07/518,275                   11/05/91
5,062,503                   07/585,415                   11/05/91
5,062,513                   07/431,739                   11/05/91
5,062,516                   07/494,789                   11/05/91
5,062,519                   07/530,797                   11/05/91
5,062,523                   07/569,150                   11/05/91
5,062,526                   07/452,213                   11/05/91
5,062,530                   07/530,397                   11/05/91
5,062,531                   07/325,949                   11/05/91
5,062,534                   07/500,602                   11/05/91
5,062,539                   07/558,145                   11/05/91
5,062,549                   07/431,418                   11/05/91
5,062,551                   07/596,785                   11/05/91
5,062,554                   07/662,514                   11/05/91
5,062,560                   07/420,013                   11/05/91
5,062,566                   07/585,965                   11/05/91
5,062,567                   07/519,334                   11/05/91
5,062,572                   07/554,242                   11/05/91
5,062,574                   07/567,067                   11/05/91
5,062,579                   07/640,511                   11/05/91
5,062,584                   07/404,909                   11/05/91
5,062,585                   07/543,896                   11/05/91
5,062,593                   07/660,361                   11/05/91
5,062,594                   07/624,096                   11/05/91
5,062,595                   07/635,800                   11/05/91
5,062,597                   07/494,777                   11/05/91
5,062,599                   07/495,512                   11/05/91
5,062,607                   07/640,831                   11/05/91
5,062,612                   07/555,236                   11/05/91
5,062,617                   07/480,769                   11/05/91
5,062,625                   07/406,554                   11/05/91
5,062,628                   07/491,099                   11/05/91
5,062,629                   07/658,000                   11/05/91
5,062,631                   07/524,476                   11/05/91
5,062,639                   07/551,153                   11/05/91
5,062,643                   07/650,745                   11/05/91
5,062,644                   07/538,028                   11/05/91
5,062,650                   07/469,018                   11/05/91
5,062,654                   07/666,480                   11/05/91
5,062,659                   07/466,666                   11/05/91
5,062,670                   07/601,648                   11/05/91
5,062,671                   07/609,298                   11/05/91
5,062,673                   07/458,346                   11/05/91
5,062,678                   07/662,015                   11/05/91
5,062,693                   07/480,385                   11/05/91
5,062,707                   07/609,875                   11/05/91
5,062,708                   07/354,150                   11/05/91
5,062,713                   07/608,066                   11/05/91
5,062,714                   07/478,475                   11/05/91
5,062,725                   07/585,316                   11/05/91
5,062,729                   07/523,396                   11/05/91
5,062,732                   07/563,268                   11/05/91
5,062,739                   07/657,378                   11/05/91
5,062,741                   07/507,780                   11/05/91
5,062,742                   07/528,241                   11/05/91
5,062,744                   07/474,758                   11/05/91
5,062,753                   07/644,278                   11/05/91
5,062,757                   07/547,602                   11/05/91
5,062,760                   07/510,133                   11/05/91
5,062,763                   07/545,275                   11/05/91
5,062,775                   07/414,780                   11/05/91
5,062,784                   07/432,744                   11/05/91
5,062,790                   07/490,926                   11/05/91
5,062,791                   07/678,218                   11/05/91
5,062,792                   07/425,432                   11/05/91
5,062,796                   07/553,382                   11/05/91
5,062,807                   07/600,916                   11/05/91
5,062,808                   07/684,719                   11/05/91
5,062,812                   07/601,880                   11/05/91
5,062,824                   07/302,241                   11/05/91
5,062,828                   07/475,702                   11/05/91
5,062,830                   07/503,948                   11/05/91
5,062,847                   07/636,482                   11/05/91
5,062,850                   07/465,419                   11/05/91
5,062,861                   07/497,672                   11/05/91
5,062,863                   07/524,538                   11/05/91
5,062,876                   07/551,986                   11/05/91
5,062,895                   07/382,304                   11/05/91
5,062,896                   07/502,090                   11/05/91
5,062,897                   07/480,768                   11/05/91
5,062,899                   07/503,408                   11/05/91
5,062,900                   07/458,743                   11/05/91
5,062,913                   07/375,726                   11/05/91
5,062,915                   07/406,898                   11/05/91
5,062,917                   07/335,025                   11/05/91
5,062,918                   07/432,113                   11/05/91
5,062,921                   07/500,951                   11/05/91
5,062,923                   07/552,849                   11/05/91
5,062,932                   07/504,554                   11/05/91
5,062,939                   07/500,979                   11/05/91
5,062,945                   07/423,610                   11/05/91
5,062,965                   07/432,825                   11/05/91
5,062,970                   07/532,546                   11/05/91
5,062,993                   07/575,178                   11/05/91
5,063,006                   07/658,459                   11/05/91
5,063,019                   07/527,457                   11/05/91
5,063,020                   07/529,795                   11/05/91
5,063,022                   07/631,083                   11/05/91
5,063,026                   07/552,199                   11/05/91
5,063,037                   06/913,541                   11/05/91
5,063,039                   07/434,951                   11/05/91
5,063,041                   07/457,589                   11/05/91
5,063,042                   07/447,046                   11/05/91
5,063,045                   07/506,039                   11/05/91
5,063,048                   07/550,540                   11/05/91
5,063,054                   07/512,053                   11/05/91
5,063,061                   07/499,954                   11/05/91
5,063,063                   07/352,872                   11/05/91
5,063,065                   07/594,838                   11/05/91
5,063,066                   07/472,046                   11/05/91
5,063,068                   07/534,503                   11/05/91
5,063,074                   07/472,018                   11/05/91
5,063,075                   07/561,868                   11/05/91
5,063,077                   07/439,556                   11/05/91
5,063,079                   07/446,806                   11/05/91
5,063,082                   07/558,709                   11/05/91
5,063,083                   07/533,317                   11/05/91
5,063,087                   07/501,109                   11/05/91
5,063,101                   07/289,611                   11/05/91
5,063,108                   07/534,184                   11/05/91
5,063,111                   07/474,883                   11/05/91
5,063,112                   07/432,388                   11/05/91
5,063,115                   07/538,591                   11/05/91
5,063,116                   07/619,431                   11/05/91
5,063,117                   07/454,460                   11/05/91
5,063,118                   07/389,753                   11/05/91
5,063,126                   07/437,277                   11/05/91
5,063,132                   07/434,379                   11/05/91
5,063,136                   07/524,382                   11/05/91
5,063,137                   07/433,996                   11/05/91
5,063,148                   07/503,539                   11/05/91
5,063,151                   06/778,554                   11/05/91
5,063,155                   07/173,860                   11/05/91
5,063,167                   07/573,698                   11/05/91
5,063,169                   07/531,825                   11/05/91
5,063,170                   07/460,011                   11/05/91
5,063,171                   07/505,802                   11/05/91
5,063,180                   07/553,722                   11/05/91
5,063,182                   07/575,913                   11/05/91
5,063,185                   07/547,405                   11/05/91
5,063,199                   07/538,835                   11/05/91
5,063,201                   07/599,605                   11/05/91
5,063,205                   07/130,594                   11/05/91
5,063,211                   07/566,955                   11/05/91
5,063,215                   07/566,952                   11/05/91
5,063,216                   07/566,954                   11/05/91
5,063,220                   07/585,436                   11/05/91
5,063,224                   07/550,005                   11/05/91
5,063,227                   07/462,914                   11/05/91
5,063,229                   07/435,078                   11/05/91
5,063,230                   07/489,646                   11/05/91
5,063,231                   07/520,108                   11/05/91
5,063,233                   07/531,499                   11/05/91
5,063,243                   07/344,583                   11/05/91
5,063,247                   07/537,302                   11/05/91
5,063,249                   07/426,501                   11/05/91
5,063,251                   07/518,794                   11/05/91
5,063,278                   07/368,828                   11/05/91
5,063,284                   07/512,280                   11/05/91
5,063,287                   07/530,921                   11/05/91
5,063,288                   07/397,248                   11/05/91
5,063,289                   07/594,893                   11/05/91
5,063,290                   07/582,274                   11/05/91
5,063,293                   07/618,521                   11/05/91
5,063,295                   07/571,545                   11/05/91
5,063,322                   07/572,256                   11/05/91
5,063,324                   07/502,078                   11/05/91
5,063,328                   07/199,279                   11/05/91
5,063,336                   07/470,875                   11/05/91
5,063,338                   07/501,223                   11/05/91
5,063,350                   07/478,277                   11/05/91
5,063,355                   07/489,948                   11/05/91
5,063,357                   07/562,361                   11/05/91
5,063,362                   07/519,528                   11/05/91
5,063,366                   07/529,907                   11/05/91
5,063,368                   07/629,438                   11/05/91
5,063,370                   07/521,678                   11/05/91
5,063,385                   07/684,074                   11/05/91
5,063,388                   07/455,441                   11/05/91
5,063,389                   07/582,808                   11/05/91
5,063,391                   07/362,072                   11/05/91
5,063,393                   07/661,660                   11/05/91
5,063,394                   07/385,091                   11/05/91
5,063,399                   07/563,022                   11/05/91
5,063,401                   07/625,224                   11/05/91
5,063,408                   07/673,333                   11/05/91
5,063,412                   07/588,406                   11/05/91
5,063,417                   07/221,021                   11/05/91
5,063,418                   07/430,685                   11/05/91
5,063,419                   07/271,546                   11/05/91
5,063,421                   07/390,600                   11/05/91
5,063,442                   07/475,928                   11/05/91
5,063,443                   07/524,900                   11/05/91
5,063,445                   07/511,374                   11/05/91
5,063,446                   07/392,500                   11/05/91
5,063,458                   07/407,742                   11/05/91
5,063,464                   07/520,566                   11/05/91
5,063,465                   07/442,397                   11/05/91
5,063,467                   07/427,369                   11/05/91
5,063,469                   07/438,704                   11/05/91
5,063,477                   07/432,507                   11/05/91
5,063,478                   07/460,964                   11/05/91
5,063,485                   07/451,980                   11/05/91
5,063,487                   07/497,387                   11/05/91
5,063,492                   07/436,725                   11/05/91
5,063,495                   07/289,992                   11/05/91
5,063,496                   07/201,651                   11/05/91
5,063,500                   07/250,632                   11/05/91
5,063,506                   07/425,615                   11/05/91
5,063,508                   07/496,192                   11/05/91
5,063,510                   07/387,530                   11/05/91
5,063,512                   07/410,843                   11/05/91
5,063,513                   07/538,900                   11/05/91
5,063,519                   07/408,715                   11/05/91
5,063,520                   07/549,066                   11/05/91
5,063,524                   07/433,790                   11/05/91
5,063,528                   07/386,120                   11/05/91
5,063,537                   07/414,339                   11/05/91
5,063,549                   07/371,052                   11/05/91
5,063,550                   07/417,161                   11/05/91
5,063,555                   07/618,116                   11/05/91
5,063,572                   07/533,183                   11/05/91
5,063,584                   07/549,146                   11/05/91
5,063,587                   07/500,890                   11/05/91
5,063,594                   07/501,725                   11/05/91
5,063,596                   07/495,335                   11/05/91
5,063,598                   07/514,386                   11/05/91

                   PATENTS WHICH EXPIRED ON November 7, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,463,779                   07/814,396                   11/07/95
5,463,781                   08/399,133                   11/07/95
5,463,782                   08/342,754                   11/07/95
5,463,783                   08/154,310                   11/07/95
5,463,789                   08/151,418                   11/07/95
5,463,790                   08/251,194                   11/07/95
5,463,794                   08/181,583                   11/07/95
5,463,797                   08/217,273                   11/07/95
5,463,798                   08/143,432                   11/07/95
5,463,799                   08/088,776                   11/07/95
5,463,807                   08/303,208                   11/07/95
5,463,808                   08/340,280                   11/07/95
5,463,816                   08/240,251                   11/07/95
5,463,817                   08/263,373                   11/07/95
5,463,818                   08/220,059                   11/07/95
5,463,825                   08/239,021                   11/07/95
5,463,842                   07/747,309                   11/07/95
5,463,843                   08/275,295                   11/07/95
5,463,855                   08/197,402                   11/07/95
5,463,856                   08/245,836                   11/07/95
5,463,860                   08/164,351                   11/07/95
5,463,869                   08/289,462                   11/07/95
5,463,886                   07/690,942                   11/07/95
5,463,889                   08/378,891                   11/07/95
5,463,890                   08/320,832                   11/07/95
5,463,891                   08/240,361                   11/07/95
5,463,906                   08/184,992                   11/07/95
5,463,917                   08/129,586                   11/07/95
5,463,919                   08/183,841                   11/07/95
5,463,924                   08/340,535                   11/07/95
5,463,934                   08/187,209                   11/07/95
5,463,935                   08/246,116                   11/07/95
5,463,938                   08/139,161                   11/07/95
5,463,941                   08/343,132                   11/07/95
5,463,942                   08/193,311                   11/07/95
5,463,946                   08/261,118                   11/07/95
5,463,954                   08/213,616                   11/07/95
5,463,956                   08/154,922                   11/07/95
5,463,959                   08/239,618                   11/07/95
5,463,961                   08/161,413                   11/07/95
5,463,967                   08/278,164                   11/07/95
5,463,981                   08/303,722                   11/07/95
5,463,982                   08/288,933                   11/07/95
5,463,984                   08/297,056                   11/07/95
5,463,985                   08/376,289                   11/07/95
5,463,991                   08/279,649                   11/07/95
5,463,994                   08/205,075                   11/07/95
5,463,997                   08/318,279                   11/07/95
5,464,001                   08/168,128                   11/07/95
5,464,002                   08/298,166                   11/07/95
5,464,003                   08/192,541                   11/07/95
5,464,008                   08/227,388                   11/07/95
5,464,017                   08/267,549                   11/07/95
5,464,018                   08/358,994                   11/07/95
5,464,019                   07/929,188                   11/07/95
5,464,027                   08/195,273                   11/07/95
5,464,029                   08/092,240                   11/07/95
5,464,033                   08/245,597                   11/07/95
5,464,034                   08/313,013                   11/07/95
5,464,037                   07/962,415                   11/07/95
5,464,044                   08/286,418                   11/07/95
5,464,048                   08/199,808                   11/07/95
5,464,065                   08/199,645                   11/07/95
5,464,066                   08/029,158                   11/07/95
5,464,067                   08/180,055                   11/07/95
5,464,078                   08/209,771                   11/07/95
5,464,080                   08/099,215                   11/07/95
5,464,081                   08/268,540                   11/07/95
5,464,085                   08/226,745                   11/07/95
5,464,091                   08/141,075                   11/07/95
5,464,092                   08/254,614                   11/07/95
5,464,093                   08/367,898                   11/07/95
5,464,096                   08/178,445                   11/07/95
5,464,105                   08/111,652                   11/07/95
5,464,110                   08/277,091                   11/07/95
5,464,118                   08/287,601                   11/07/95
5,464,123                   08/193,037                   11/07/95
5,464,133                   08/301,498                   11/07/95
5,464,136                   08/313,762                   11/07/95
5,464,137                   08/065,431                   11/07/95
5,464,139                   08/234,358                   11/07/95
5,464,140                   08/280,795                   11/07/95
5,464,143                   08/245,882                   11/07/95
5,464,170                   08/197,412                   11/07/95
5,464,173                   08/357,959                   11/07/95
5,464,180                   08/330,067                   11/07/95
5,464,181                   08/320,325                   11/07/95
5,464,186                   08/235,888                   11/07/95
5,464,188                   08/206,365                   11/07/95
5,464,192                   08/296,459                   11/07/95
5,464,195                   08/035,772                   11/07/95
5,464,196                   08/230,391                   11/07/95
5,464,215                   08/151,135                   11/07/95
5,464,220                   08/347,271                   11/07/95
5,464,226                   08/162,278                   11/07/95
5,464,230                   08/210,564                   11/07/95
5,464,234                   08/207,086                   11/07/95
5,464,235                   08/022,702                   11/07/95
5,464,237                   08/267,460                   11/07/95
5,464,238                   08/251,217                   11/07/95
5,464,239                   08/295,924                   11/07/95
5,464,240                   08/189,590                   11/07/95
5,464,242                   08/291,527                   11/07/95
5,464,250                   08/075,797                   11/07/95
5,464,253                   08/389,962                   11/07/95
5,464,256                   08/101,968                   11/07/95
5,464,261                   08/246,449                   11/07/95
5,464,268                   08/110,384                   11/07/95
5,464,269                   08/134,793                   11/07/95
5,464,276                   08/176,776                   11/07/95
5,464,278                   08/196,158                   11/07/95
5,464,280                   08/167,166                   11/07/95
5,464,281                   08/020,572                   11/07/95
5,464,283                   08/398,354                   11/07/95
5,464,285                   08/241,598                   11/07/95
5,464,286                   08/335,502                   11/07/95
5,464,292                   08/042,017                   11/07/95
5,464,293                   08/295,402                   11/07/95
5,464,297                   08/131,724                   11/07/95
5,464,298                   08/057,719                   11/07/95
5,464,302                   08/111,259                   11/07/95
5,464,305                   08/275,070                   11/07/95
5,464,306                   08/291,841                   11/07/95
5,464,310                   08/063,649                   11/07/95
5,464,320                   08/219,192                   11/07/95
5,464,340                   08/205,188                   11/07/95
5,464,345                   08/282,359                   11/07/95
5,464,352                   08/151,163                   11/07/95
5,464,354                   08/189,720                   11/07/95
5,464,358                   08/109,856                   11/07/95
5,464,360                   08/272,570                   11/07/95
5,464,367                   08/253,717                   11/07/95
5,464,372                   08/233,866                   11/07/95
5,464,380                   08/219,305                   11/07/95
5,464,381                   08/298,616                   11/07/95
5,464,382                   08/359,068                   11/07/95
5,464,393                   08/264,628                   11/07/95
5,464,412                   08/273,863                   11/07/95
5,464,414                   08/150,005                   11/07/95
5,464,419                   08/215,178                   11/07/95
5,464,428                   08/207,552                   11/07/95
5,464,438                   08/057,341                   11/07/95
5,464,455                   08/095,684                   11/07/95
5,464,471                   08/339,176                   11/07/95
5,464,476                   08/324,191                   11/07/95
5,464,481                   08/304,269                   11/07/95
5,464,484                   08/255,218                   11/07/95
5,464,496                   08/250,643                   11/07/95
5,464,504                   08/160,312                   11/07/95
5,464,511                   08/298,765                   11/07/95
5,464,517                   08/380,425                   11/07/95
5,464,529                   08/119,352                   11/07/95
5,464,537                   08/318,210                   11/07/95
5,464,538                   08/240,351                   11/07/95
5,464,554                   08/116,661                   11/07/95
5,464,557                   08/185,584                   11/07/95
5,464,559                   08/303,368                   11/07/95
5,464,562                   08/427,016                   11/07/95
5,464,591                   08/193,456                   11/07/95
5,464,603                   08/303,322                   11/07/95
5,464,607                   08/244,598                   11/07/95
5,464,614                   08/152,015                   11/07/95
5,464,618                   08/193,986                   11/07/95
5,464,620                   08/273,231                   11/07/95
5,464,635                   08/197,878                   11/07/95
5,464,656                   08/253,106                   11/07/95
5,464,659                   08/121,031                   11/07/95
5,464,665                   08/074,197                   11/07/95
5,464,674                   08/003,417                   11/07/95
5,464,675                   08/204,505                   11/07/95
5,464,694                   08/116,134                   11/07/95
5,464,697                   08/404,011                   11/07/95
5,464,702                   08/320,092                   11/07/95
5,464,762                   08/265,176                   11/07/95
5,464,771                   08/235,747                   11/07/95
5,464,792                   08/186,957                   11/07/95
5,464,796                   07/896,955                   11/07/95
5,464,806                   08/101,626                   11/07/95
5,464,811                   08/409,453                   11/07/95
5,464,812                   08/201,080                   11/07/95
5,464,816                   07/498,637                   11/07/95
5,464,818                   08/365,820                   11/07/95
5,464,820                   08/079,812                   11/07/95
5,464,821                   08/122,510                   11/07/95
5,464,832                   08/166,498                   11/07/95
5,464,837                   07/913,758                   11/07/95
5,464,838                   08/027,487                   11/07/95
5,464,841                   08/149,039                   11/07/95
5,464,844                   08/244,208                   11/07/95
5,464,851                   08/281,975                   11/07/95
5,464,852                   08/289,113                   11/07/95
5,464,853                   08/142,159                   11/07/95
5,464,860                   08/077,194                   11/07/95
5,464,873                   08/325,210                   11/07/95
5,464,877                   08/204,159                   11/07/95
5,464,881                   08/343,567                   11/07/95
5,464,890                   08/151,406                   11/07/95
5,464,891                   08/224,497                   11/07/95
5,464,906                   08/342,984                   11/07/95
5,464,912                   08/377,070                   11/07/95
5,464,915                   08/039,470                   11/07/95
5,464,923                   08/326,104                   11/07/95
5,464,925                   08/248,906                   11/07/95
5,464,928                   08/299,385                   11/07/95
5,464,941                   08/326,103                   11/07/95
5,464,943                   08/275,635                   11/07/95
5,464,944                   08/081,509                   11/07/95
5,464,953                   08/173,059                   11/07/95
5,464,957                   08/009,696                   11/07/95
5,464,968                   08/085,397                   11/07/95
5,464,988                   08/347,134                   11/07/95
5,465,011                   07/990,566                   11/07/95
5,465,014                   08/373,865                   11/07/95
5,465,019                   08/123,668                   11/07/95
5,465,023                   08/089,064                   11/07/95
5,465,024                   07/839,717                   11/07/95
5,465,033                   08/250,552                   11/07/95
5,465,043                   08/094,415                   11/07/95
5,465,044                   08/353,951                   11/07/95
5,465,060                   08/257,852                   11/07/95
5,465,065                   08/040,480                   11/07/95
5,465,068                   08/391,269                   11/07/95
5,465,077                   08/244,275                   11/07/95
5,465,097                   08/237,925                   11/07/95
5,465,126                   07/957,361                   11/07/95
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5,465,274                   08/418,968                   11/07/95
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5,465,331                   07/996,384                   11/07/95
5,465,345                   07/947,601                   11/07/95
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5,465,420                   08/292,944                   11/07/95
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5,465,422                   08/258,943                   11/07/95