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 December 27, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                     Application                      Issue
Number                        Number                         Date

4,701,970                   06/847,526                   10/27/87
4,701,975                   06/837,676                   10/27/87
4,701,985                   06/683,592                   10/27/87
4,701,997                   06/894,943                   10/27/87
4,701,998                   06/803,451                   10/27/87
4,701,999                   06/810,032                   10/27/87
4,702,003                   06/743,112                   10/27/87
4,702,005                   06/785,779                   10/27/87
4,702,016                   06/902,434                   10/27/87
4,702,017                   06/900,673                   10/27/87
4,702,019                   06/883,346                   10/27/87
4,702,022                   06/918,259                   10/27/87
4,702,023                   06/913,459                   10/27/87
4,702,026                   06/838,324                   10/27/87
4,702,037                   06/891,745                   10/27/87
4,702,038                   06/909,951                   10/27/87
4,702,051                   06/760,274                   10/27/87
4,702,061                   06/840,178                   10/27/87
4,702,066                   06/889,235                   10/27/87
4,702,072                   06/767,712                   10/27/87
4,702,073                   06/838,165                   10/27/87
4,702,074                   06/760,357                   10/27/87
4,702,076                   06/633,397                   10/27/87
4,702,106                   06/872,044                   10/27/87
4,702,108                   06/825,851                   10/27/87
4,702,116                   06/873,367                   10/27/87
4,702,117                   06/846,157                   10/27/87
4,702,118                   06/909,882                   10/27/87
4,702,137                   06/767,623                   10/27/87
4,702,141                   06/839,711                   10/27/87
4,702,144                   06/872,281                   10/27/87
4,702,145                   06/875,422                   10/27/87
4,702,148                   06/878,154                   10/27/87
4,702,150                   06/802,224                   10/27/87
4,702,158                   06/829,771                   10/27/87
4,702,159                   07/002,010                   10/27/87
4,702,163                   06/837,938                   10/27/87
4,702,165                   06/713,774                   10/27/87
4,702,168                   06/824,982                   10/27/87
4,702,179                   06/601,655                   10/27/87
4,702,180                   07/029,722                   10/27/87
4,702,183                   06/892,190                   10/27/87
4,702,197                   06/816,517                   10/27/87
4,702,198                   06/792,899                   10/27/87
4,702,207                   06/815,288                   10/27/87
4,702,210                   06/871,738                   10/27/87
4,702,213                   06/813,501                   10/27/87
4,702,216                   06/927,722                   10/27/87
4,702,221                   06/924,423                   10/27/87
4,702,237                   06/902,068                   10/27/87
4,702,252                   06/822,839                   10/27/87
4,702,257                   06/911,734                   10/27/87
4,702,261                   06/752,342                   10/27/87
4,702,263                   06/865,349                   10/27/87
4,702,269                   06/948,417                   10/27/87
4,702,271                   06/913,013                   10/27/87
4,702,285                   06/849,077                   10/27/87
4,702,289                   06/880,066                   10/27/87
4,702,290                   06/929,100                   10/27/87
4,702,293                   06/834,123                   10/27/87
4,702,297                   06/896,813                   10/27/87
4,702,303                   06/820,407                   10/27/87
4,702,307                   06/940,514                   10/27/87
4,702,315                   06/900,587                   10/27/87
4,702,323                   06/818,481                   10/27/87
4,702,334                   06/922,539                   10/27/87
4,702,339                   06/748,495                   10/27/87
4,702,356                   06/729,543                   10/27/87
4,702,369                   06/824,508                   10/27/87
4,702,385                   07/030,353                   10/27/87
4,702,392                   06/857,922                   10/27/87
4,702,393                   06/698,938                   10/27/87
4,702,399                   06/788,143                   10/27/87
4,702,405                   07/002,715                   10/27/87
4,702,412                   07/017,849                   10/27/87
4,702,414                   06/723,243                   10/27/87
4,702,423                   06/794,649                   10/27/87
4,702,427                   06/915,866                   10/27/87
4,702,430                   06/756,609                   10/27/87
4,702,434                   06/864,427                   10/27/87
4,702,437                   06/699,460                   10/27/87
4,702,454                   06/710,406                   10/27/87
4,702,457                   06/372,462                   10/27/87
4,702,458                   06/869,283                   10/27/87
4,702,460                   06/893,447                   10/27/87
4,702,463                   06/750,014                   10/27/87
4,702,474                   06/800,960                   10/27/87
4,702,475                   06/890,716                   10/27/87
4,702,483                   06/850,693                   10/27/87
4,702,488                   06/863,661                   10/27/87
4,702,489                   06/780,657                   10/27/87
4,702,493                   06/922,508                   10/27/87
4,702,494                   06/924,468                   10/27/87
4,702,499                   06/921,970                   10/27/87
4,702,501                   06/712,564                   10/27/87
4,702,504                   06/889,650                   10/27/87
4,702,512                   06/896,841                   10/27/87
4,702,513                   06/745,852                   10/27/87
4,702,518                   06/800,551                   10/27/87
4,702,522                   06/437,715                   10/27/87
4,702,528                   06/735,594                   10/27/87
4,702,537                   06/729,847                   10/27/87
4,702,551                   06/659,580                   10/27/87
4,702,552                   06/752,501                   10/27/87
4,702,554                   06/643,731                   10/27/87
4,702,556                   06/643,259                   10/27/87
4,702,560                   06/785,652                   10/27/87
4,702,569                   06/874,967                   10/27/87
4,702,575                   06/262,153                   10/27/87
4,702,609                   06/907,750                   10/27/87
4,702,616                   06/876,372                   10/27/87
4,702,624                   06/877,055                   10/27/87
4,702,627                   06/804,351                   10/27/87
4,702,630                   06/877,410                   10/27/87
4,702,640                   06/889,190                   10/27/87
4,702,644                   06/863,950                   10/27/87
4,702,647                   06/904,427                   10/27/87
4,702,649                   06/833,930                   10/27/87
4,702,656                   06/884,996                   10/27/87
4,702,667                   06/817,579                   10/27/87
4,702,669                   06/791,079                   10/27/87
4,702,685                   06/801,065                   10/27/87
4,702,687                   06/726,270                   10/27/87
4,702,698                   06/652,875                   10/27/87
4,702,705                   06/901,393                   10/27/87
4,702,712                   06/922,649                   10/27/87
4,702,714                   06/811,314                   10/27/87
4,702,728                   06/689,008                   10/27/87
4,702,729                   06/827,775                   10/27/87
4,702,738                   06/866,151                   10/27/87
4,702,757                   06/898,280                   10/27/87
4,702,769                   06/474,813                   10/27/87
4,702,770                   06/759,411                   10/27/87
4,702,778                   06/821,550                   10/27/87
4,702,780                   06/695,456                   10/27/87
4,702,781                   06/787,369                   10/27/87
4,702,784                   06/741,637                   10/27/87
4,702,794                   06/824,199                   10/27/87
4,702,796                   06/931,583                   10/27/87
4,702,797                   06/943,053                   10/27/87
4,702,798                   07/017,720                   10/27/87
4,702,799                   06/772,150                   10/27/87
4,702,804                   07/009,715                   10/27/87
4,702,806                   06/867,335                   10/27/87
4,702,807                   06/914,364                   10/27/87
4,702,810                   06/813,259                   10/27/87
4,702,825                   06/685,405                   10/27/87
4,702,826                   06/825,149                   10/27/87
4,702,833                   06/833,858                   10/27/87
4,702,852                   06/939,850                   10/27/87
4,702,853                   06/915,842                   10/27/87
4,702,855                   06/914,211                   10/27/87
4,702,863                   06/884,904                   10/27/87
4,702,877                   06/815,382                   10/27/87
4,702,886                   06/916,819                   10/27/87
4,702,901                   06/839,302                   10/27/87
4,702,902                   07/030,654                   10/27/87
4,702,906                   06/733,590                   10/27/87
4,702,913                   07/013,004                   10/27/87
4,702,915                   06/890,777                   10/27/87
4,702,917                   06/798,883                   10/27/87
4,702,918                   06/762,057                   10/27/87
4,702,944                   06/800,272                   10/27/87
4,702,958                   06/834,271                   10/27/87
4,702,968                   06/825,262                   10/27/87
4,702,971                   06/867,860                   10/27/87
4,702,984                   06/857,349                   10/27/87
4,702,985                   06/856,392                   10/27/87
4,702,989                   06/849,369                   10/27/87
4,702,990                   06/733,505                   10/27/87
4,702,992                   06/708,940                   10/27/87
4,703,009                   06/805,241                   10/27/87
4,703,019                   06/861,269                   10/27/87
4,703,020                   06/824,093                   10/27/87
4,703,027                   06/916,076                   10/27/87
4,703,030                   06/891,038                   10/27/87
4,703,039                   06/786,241                   10/27/87
4,703,043                   06/849,040                   10/27/87
4,703,045                   06/838,318                   10/27/87
4,703,055                   06/882,253                   10/27/87
4,703,056                   06/662,298                   10/27/87
4,703,057                   06/913,351                   10/27/87
4,703,064                   06/555,637                   10/27/87
4,703,066                   07/020,976                   10/27/87
4,703,071                   06/823,070                   10/27/87
4,703,086                   06/788,524                   10/27/87
4,703,105                   06/812,440                   10/27/87
4,703,106                   06/794,644                   10/27/87
4,703,128                   06/885,818                   10/27/87
4,703,129                   06/808,846                   10/27/87
4,703,133                   06/870,899                   10/27/87
4,703,136                   06/774,609                   10/27/87
4,703,137                   06/944,377                   10/27/87
4,703,138                   06/846,574                   10/27/87
4,703,140                   06/932,126                   10/27/87
4,703,141                   06/766,814                   10/27/87
4,703,143                   06/811,368                   10/27/87
4,703,159                   06/314,667                   10/27/87
4,703,161                   06/913,713                   10/27/87
4,703,164                   06/843,126                   10/27/87
4,703,169                   06/945,072                   10/27/87
4,703,176                   06/741,179                   10/27/87
4,703,178                   07/004,272                   10/27/87
4,703,185                   06/798,411                   10/27/87
4,703,189                   06/799,046                   10/27/87
4,703,190                   06/877,923                   10/27/87
4,703,202                   06/700,413                   10/27/87
4,703,204                   06/807,731                   10/27/87
4,703,209                   06/857,474                   10/27/87
4,703,229                   06/786,258                   10/27/87
4,703,232                   06/873,461                   10/27/87
4,703,238                   07/002,797                   10/27/87
4,703,239                   06/923,141                   10/27/87
4,703,247                   06/886,181                   10/27/87
4,703,258                   06/852,805                   10/27/87
4,703,259                   06/774,275                   10/27/87
4,703,260                   06/778,823                   10/27/87
4,703,279                   06/761,127                   10/27/87
4,703,289                   06/809,984                   10/27/87
4,703,292                   06/831,518                   10/27/87
4,703,297                   06/942,464                   10/27/87
4,703,298                   06/927,193                   10/27/87
4,703,299                   06/847,951                   10/27/87
4,703,301                   06/858,207                   10/27/87
4,703,309                   06/889,300                   10/27/87
4,703,310                   06/271,315                   10/27/87
4,703,311                   07/003,932                   10/27/87
4,703,314                   06/938,029                   10/27/87
4,703,324                   06/940,215                   10/27/87
4,703,329                   06/861,591                   10/27/87
4,703,330                   06/859,480                   10/27/87
4,703,332                   06/927,227                   10/27/87
4,703,335                   06/820,305                   10/27/87
4,703,341                   07/002,320                   10/27/87
4,703,346                   07/009,660                   10/27/87
4,703,361                   06/754,446                   10/27/87
4,703,364                   06/880,471                   10/27/87
4,703,372                   06/709,629                   10/27/87
4,703,389                   06/849,998                   10/27/87
4,703,392                   06/799,965                   10/27/87
4,703,394                   06/922,641                   10/27/87
4,703,408                   06/674,672                   10/27/87
4,703,412                   06/775,795                   10/27/87
4,703,421                   06/815,976                   10/27/87
4,703,426                   06/669,503                   10/27/87
4,703,427                   06/767,933                   10/27/87
4,703,429                   06/756,882                   10/27/87
4,703,435                   06/631,364                   10/27/87
4,703,438                   06/706,738                   10/27/87
4,703,442                   06/779,861                   10/27/87
4,703,443                   06/699,133                   10/27/87
4,703,444                   06/847,734                   10/27/87
4,703,452                   06/815,842                   10/27/87
4,703,453                   06/466,483                   10/27/87
4,703,458                   06/809,540                   10/27/87
4,703,461                   06/845,938                   10/27/87
4,703,462                   06/723,018                   10/27/87
4,703,463                   06/849,908                   10/27/87
4,703,470                   06/765,677                   10/27/87
4,703,476                   06/926,890                   10/27/87
4,703,479                   06/796,857                   10/27/87
4,703,482                   06/868,444                   10/27/87
4,703,483                   06/759,448                   10/27/87
4,703,489                   06/701,158                   10/27/87
4,703,507                   06/890,617                   10/27/87
4,703,518                   06/895,309                   10/27/87

                   PATENTS WHICH EXPIRED ON October 22, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,058,213                   07/609,378                   10/22/91
5,058,214                   07/553,186                   10/22/91
5,058,215                   07/634,035                   10/22/91
5,058,236                   07/475,918                   10/22/91
5,058,240                   07/367,978                   10/22/91
5,058,242                   07/567,070                   10/22/91
5,058,243                   07/574,601                   10/22/91
5,058,251                   07/640,828                   10/22/91
5,058,252                   07/396,905                   10/22/91
5,058,253                   07/256,821                   10/22/91
5,058,255                   07/569,408                   10/22/91
5,058,262                   07/441,976                   10/22/91
5,058,263                   07/576,321                   10/22/91
5,058,265                   07/580,042                   10/22/91
5,058,269                   07/575,555                   10/22/91
5,058,280                   07/566,599                   10/22/91
5,058,282                   07/681,749                   10/22/91
5,058,284                   07/613,059                   10/22/91
5,058,287                   07/570,572                   10/22/91
5,058,291                   07/573,365                   10/22/91
5,058,292                   07/407,620                   10/22/91
5,058,293                   07/594,560                   10/22/91
5,058,298                   07/444,722                   10/22/91
5,058,299                   07/473,670                   10/22/91
5,058,303                   07/569,826                   10/22/91
5,058,304                   07/554,723                   10/22/91
5,058,306                   07/585,391                   10/22/91
5,058,307                   07/552,478                   10/22/91
5,058,311                   07/616,797                   10/22/91
5,058,315                   07/388,192                   10/22/91
5,058,316                   07/397,500                   10/22/91
5,058,324                   07/469,202                   10/22/91
5,058,333                   07/503,428                   10/22/91
5,058,335                   07/423,776                   10/22/91
5,058,336                   07/190,696                   10/22/91
5,058,338                   07/498,745                   10/22/91
5,058,343                   07/375,368                   10/22/91
5,058,346                   07/373,221                   10/22/91
5,058,350                   07/393,764                   10/22/91
5,058,353                   07/236,894                   10/22/91
5,058,354                   07/590,736                   10/22/91
5,058,355                   07/550,262                   10/22/91
5,058,364                   07/560,861                   10/22/91
5,058,370                   07/562,848                   10/22/91
5,058,377                   07/505,049                   10/22/91
5,058,378                   07/505,043                   10/22/91
5,058,380                   07/480,962                   10/22/91
5,058,385                   07/456,023                   10/22/91
5,058,388                   07/573,233                   10/22/91
5,058,392                   07/445,358                   10/22/91
5,058,393                   07/507,140                   10/22/91
5,058,395                   07/487,682                   10/22/91
5,058,401                   07/456,167                   10/22/91
5,058,411                   07/493,651                   10/22/91
5,058,415                   07/542,713                   10/22/91
5,058,416                   07/293,620                   10/22/91
5,058,428                   07/432,058                   10/22/91
5,058,429                   07/479,244                   10/22/91
5,058,431                   07/527,963                   10/22/91
5,058,450                   07/512,161                   10/22/91
5,058,451                   07/433,170                   10/22/91
5,058,456                   07/616,830                   10/22/91
5,058,465                   07/348,873                   10/22/91
5,058,466                   07/362,739                   10/22/91
5,058,467                   07/495,848                   10/22/91
5,058,470                   07/636,024                   10/22/91
5,058,481                   07/597,134                   10/22/91
5,058,489                   07/539,335                   10/22/91
5,058,490                   07/570,145                   10/22/91
5,058,493                   07/422,529                   10/22/91
5,058,499                   07/531,205                   10/22/91
5,058,504                   07/498,228                   10/22/91
5,058,505                   07/470,828                   10/22/91
5,058,509                   07/710,874                   10/22/91
5,058,522                   07/526,294                   10/22/91
5,058,524                   07/642,513                   10/22/91
5,058,525                   07/555,045                   10/22/91
5,058,529                   07/500,566                   10/22/91
5,058,534                   07/571,294                   10/22/91
5,058,536                   07/380,560                   10/22/91
5,058,537                   07/341,533                   10/22/91
5,058,541                   07/513,795                   10/22/91
5,058,542                   07/647,301                   10/22/91
5,058,545                   07/575,480                   10/22/91
5,058,546                   07/667,145                   10/22/91
5,058,547                   07/660,438                   10/22/91
5,058,548                   07/531,133                   10/22/91
5,058,557                   07/606,057                   10/22/91
5,058,558                   07/416,777                   10/22/91
5,058,566                   07/650,601                   10/22/91
5,058,574                   07/542,162                   10/22/91
5,058,575                   07/637,642                   10/22/91
5,058,579                   07/564,793                   10/22/91
5,058,589                   06/841,774                   10/22/91
5,058,590                   07/345,439                   10/22/91
5,058,592                   07/608,247                   10/22/91
5,058,596                   07/507,355                   10/22/91
5,058,601                   07/512,052                   10/22/91
5,058,605                   07/483,061                   10/22/91
5,058,611                   07/328,953                   10/22/91
5,058,618                   07/627,532                   10/22/91
5,058,619                   07/591,461                   10/22/91
5,058,626                   07/627,909                   10/22/91
5,058,632                   07/519,655                   10/22/91
5,058,654                   07/549,230                   10/22/91
5,058,661                   07/209,532                   10/22/91
5,058,663                   07/478,210                   10/22/91
5,058,677                   07/585,424                   10/22/91
5,058,692                   07/539,268                   10/22/91
5,058,701                   07/592,003                   10/22/91
5,058,703                   07/289,866                   10/22/91
5,058,704                   07/274,313                   10/22/91
5,058,705                   07/280,376                   10/22/91
5,058,710                   07/567,422                   10/22/91
5,058,715                   07/438,184                   10/22/91
5,058,716                   07/570,757                   10/22/91
5,058,724                   07/610,656                   10/22/91
5,058,725                   07/657,359                   10/22/91
5,058,727                   07/376,821                   10/22/91
5,058,728                   07/387,214                   10/22/91
5,058,731                   07/527,400                   10/22/91
5,058,737                   07/588,444                   10/22/91
5,058,739                   07/646,428                   10/22/91
5,058,744                   07/568,754                   10/22/91
5,058,749                   07/540,475                   10/22/91
5,058,752                   07/501,245                   10/22/91
5,058,755                   07/568,575                   10/22/91
5,058,757                   07/573,690                   10/22/91
5,058,761                   07/580,137                   10/22/91
5,058,762                   07/368,498                   10/22/91
5,058,763                   07/612,211                   10/22/91
5,058,767                   07/654,360                   10/22/91
5,058,768                   07/598,127                   10/22/91
5,058,770                   07/538,329                   10/22/91
5,058,772                   07/435,030                   10/22/91
5,058,779                   07/481,946                   10/22/91
5,058,783                   07/482,641                   10/22/91
5,058,784                   07/597,662                   10/22/91
5,058,785                   07/546,301                   10/22/91
5,058,786                   07/529,214                   10/22/91
5,058,788                   07/321,974                   10/22/91
5,058,804                   07/403,522                   10/22/91
5,058,805                   07/551,921                   10/22/91
5,058,807                   07/606,321                   10/22/91
5,058,809                   07/579,852                   10/22/91
5,058,813                   07/455,356                   10/22/91
5,058,828                   07/559,815                   10/22/91
5,058,829                   07/464,158                   10/22/91
5,058,834                   07/448,461                   10/22/91
5,058,838                   07/593,974                   10/22/91
5,058,839                   07/149,007                   10/22/91
5,058,840                   07/550,442                   10/22/91
5,058,842                   07/569,184                   10/22/91
5,058,843                   07/406,956                   10/22/91
5,058,846                   07/485,153                   10/22/91
5,058,850                   07/360,598                   10/22/91
5,058,864                   07/665,475                   10/22/91
5,058,870                   07/563,422                   10/22/91
5,058,872                   07/390,830                   10/22/91
5,058,879                   07/548,693                   10/22/91
5,058,892                   07/641,582                   10/22/91
5,058,900                   07/606,119                   10/22/91
5,058,901                   07/540,838                   10/22/91
5,058,907                   07/545,151                   10/22/91
5,058,914                   07/621,302                   10/22/91
5,058,916                   07/540,489                   10/22/91
5,058,917                   07/591,397                   10/22/91
5,058,918                   07/490,075                   10/22/91
5,058,919                   07/539,023                   10/22/91
5,058,922                   07/422,082                   10/22/91
5,058,924                   07/482,861                   10/22/91
5,058,928                   07/687,612                   10/22/91
5,058,929                   07/433,881                   10/22/91
5,058,941                   07/472,977                   10/22/91
5,058,947                   07/444,376                   10/22/91
5,058,959                   07/510,383                   10/22/91
5,058,967                   07/516,869                   10/22/91
5,058,973                   07/477,810                   10/22/91
5,058,981                   07/444,934                   10/22/91
5,058,984                   07/547,572                   10/22/91
5,058,993                   07/590,708                   10/22/91
5,058,997                   07/392,818                   10/22/91
5,059,005                   07/571,407                   10/22/91
5,059,006                   07/630,286                   10/22/91
5,059,011                   07/493,972                   10/22/91
5,059,019                   07/526,287                   10/22/91
5,059,023                   07/374,121                   10/22/91
5,059,025                   07/500,972                   10/22/91
5,059,026                   07/551,419                   10/22/91
5,059,028                   07/472,372                   10/22/91
5,059,029                   07/260,089                   10/22/91
5,059,035                   07/478,882                   10/22/91
5,059,041                   07/580,289                   10/22/91
5,059,049                   07/487,674                   10/22/91
5,059,050                   07/560,817                   10/22/91
5,059,060                   07/545,923                   10/22/91
5,059,066                   07/510,748                   10/22/91
5,059,070                   07/631,123                   10/22/91
5,059,072                   07/550,314                   10/22/91
5,059,073                   07/532,535                   10/22/91
5,059,074                   07/570,105                   10/22/91
5,059,078                   07/626,098                   10/22/91
5,059,080                   07/358,397                   10/22/91
5,059,081                   07/434,132                   10/22/91
5,059,083                   07/409,468                   10/22/91
5,059,088                   07/459,707                   10/22/91
5,059,090                   07/466,089                   10/22/91
5,059,095                   07/429,256                   10/22/91
5,059,096                   07/638,724                   10/22/91
5,059,097                   07/469,047                   10/22/91
5,059,099                   07/566,326                   10/22/91
5,059,100                   07/552,661                   10/22/91
5,059,102                   07/397,819                   10/22/91
5,059,113                   07/505,600                   10/22/91
5,059,114                   07/508,501                   10/22/91
5,059,121                   07/566,281                   10/22/91
5,059,124                   07/562,197                   10/22/91
5,059,125                   07/393,290                   10/22/91
5,059,128                   07/561,393                   10/22/91
5,059,129                   07/674,243                   10/22/91
5,059,137                   07/571,960                   10/22/91
5,059,140                   07/514,947                   10/22/91
5,059,143                   07/241,649                   10/22/91
5,059,145                   07/399,745                   10/22/91
5,059,159                   07/483,929                   10/22/91
5,059,163                   07/597,168                   10/22/91
5,059,171                   07/541,564                   10/22/91
5,059,181                   07/474,544                   10/22/91
5,059,185                   07/162,569                   10/22/91
5,059,191                   07/494,662                   10/22/91
5,059,196                   07/666,170                   10/22/91
5,059,197                   07/509,894                   10/22/91
5,059,201                   07/644,677                   10/22/91
5,059,209                   07/342,810                   10/22/91
5,059,212                   07/532,913                   10/22/91
5,059,214                   07/328,157                   10/22/91
5,059,216                   07/414,804                   10/22/91
5,059,222                   07/587,899                   10/22/91
5,059,233                   07/556,526                   10/22/91
5,059,237                   06/895,998                   10/22/91
5,059,239                   07/546,124                   10/22/91
5,059,254                   07/356,234                   10/22/91
5,059,261                   07/526,832                   10/22/91
5,059,262                   07/515,178                   10/22/91
5,059,263                   07/231,570                   10/22/91
5,059,268                   07/364,569                   10/22/91
5,059,274                   07/414,345                   10/22/91
5,059,276                   07/534,261                   10/22/91
5,059,286                   07/513,595                   10/22/91
5,059,287                   07/367,305                   10/22/91
5,059,293                   07/446,770                   10/22/91
5,059,297                   07/495,957                   10/22/91
5,059,300                   07/246,565                   10/22/91
5,059,310                   07/574,347                   10/22/91
5,059,319                   07/633,059                   10/22/91
5,059,321                   07/521,864                   10/22/91
5,059,325                   07/530,173                   10/22/91
5,059,326                   07/565,817                   10/22/91
5,059,329                   07/409,546                   10/22/91
5,059,331                   07/489,368                   10/22/91
5,059,339                   07/390,757                   10/22/91
5,059,342                   07/496,601                   10/22/91
5,059,369                   06/860,702                   10/22/91
5,059,374                   07/450,933                   10/22/91
5,059,377                   07/382,595                   10/22/91
5,059,382                   07/296,817                   10/22/91
5,059,386                   07/508,640                   10/22/91
5,059,390                   07/365,840                   10/22/91
5,059,393                   07/293,717                   10/22/91
5,059,396                   07/249,586                   10/22/91
5,059,403                   07/620,748                   10/22/91
5,059,406                   07/510,101                   10/22/91
5,059,411                   07/487,060                   10/22/91
5,059,415                   07/314,940                   10/22/91
5,059,419                   07/204,270                   10/22/91
5,059,430                   07/581,290                   10/22/91
5,059,442                   07/409,237                   10/22/91
5,059,444                   07/532,173                   10/22/91
5,059,445                   07/649,192                   10/22/91
5,059,447                   07/479,683                   10/22/91
5,059,449                   07/395,536                   10/22/91
5,059,464                   07/492,934                   10/22/91
5,059,466                   07/566,398                   10/22/91
5,059,469                   07/536,992                   10/22/91
5,059,474                   07/378,947                   10/22/91
5,059,485                   07/437,289                   10/22/91
5,059,489                   07/219,978                   10/22/91
5,059,505                   07/569,526                   10/22/91
5,059,512                   07/419,047                   10/22/91
5,059,522                   07/234,415                   10/22/91
5,059,527                   07/448,071                   10/22/91
5,059,535                   07/336,932                   10/22/91
5,059,537                   07/288,169                   10/22/91
5,059,539                   07/390,898                   10/22/91
5,059,544                   07/219,020                   10/22/91
5,059,545                   07/559,521                   10/22/91
5,059,546                   07/416,619                   10/22/91
5,059,551                   07/474,715                   10/22/91
5,059,553                   07/640,658                   10/22/91
5,059,557                   07/503,020                   10/22/91
5,059,577                   06/906,813                   10/22/91
5,059,582                   07/326,918                   10/22/91
5,059,584                   07/519,043                   10/22/91
5,059,587                   07/221,302                   10/22/91
5,059,588                   07/421,101                   10/22/91
5,059,594                   07/497,364                   10/22/91
5,059,596                   07/465,031                   10/22/91
5,059,608                   07/327,813                   10/22/91
5,059,614                   07/443,133                   10/22/91
5,059,616                   07/592,158                   10/22/91
5,059,626                   07/648,513                   10/22/91
5,059,628                   07/494,843                   10/22/91
5,059,636                   07/611,702                   10/22/91
5,059,637                   07/701,197                   10/22/91
5,059,642                   07/407,294                   10/22/91
5,059,648                   07/427,049                   10/22/91
5,059,650                   07/241,806                   10/22/91
5,059,658                   07/503,583                   10/22/91
5,059,659                   07/635,421                   10/22/91
5,059,662                   07/484,920                   10/22/91
5,059,666                   07/534,449                   10/22/91
5,059,670                   07/515,987                   10/22/91
5,059,671                   07/454,274                   10/22/91
5,059,684                   07/489,327                   10/22/91
5,059,687                   07/507,851                   10/22/91
5,059,694                   07/509,785                   10/22/91
5,059,698                   07/363,801                   10/22/91
5,059,725                   07/677,192                   10/22/91
5,059,740                   07/555,768                   10/22/91
5,059,744                   07/414,863                   10/22/91
5,059,748                   07/515,004                   10/22/91
5,059,753                   07/329,464                   10/22/91
5,059,754                   07/479,430                   10/22/91
5,059,761                   07/631,839                   10/22/91
5,059,763                   07/534,452                   10/22/91
5,059,764                   07/265,052                   10/22/91
5,059,771                   07/330,768                   10/22/91
5,059,781                   07/585,782                   10/22/91
5,059,784                   07/502,400                   10/22/91
5,059,786                   07/519,064                   10/22/91
5,059,790                   07/503,463                   10/22/91
5,059,794                   07/517,382                   10/22/91
5,059,798                   07/703,553                   10/22/91
5,059,800                   07/687,100                   10/22/91
5,059,804                   07/607,175                   10/22/91
5,059,809                   07/551,499                   10/22/91
5,059,812                   07/595,129                   10/22/91
5,059,814                   07/277,795                   10/22/91
5,059,820                   07/584,811                   10/22/91
5,059,829                   07/577,178                   10/22/91
5,059,836                   07/605,603                   10/22/91
5,059,837                   07/309,530                   10/22/91
5,059,841                   07/456,740                   10/22/91
5,059,844                   07/445,365                   10/22/91
5,059,870                   07/366,478                   10/22/91
5,059,876                   07/448,990                   10/22/91
5,059,880                   07/414,453                   10/22/91
5,059,884                   07/506,818                   10/22/91
5,059,887                   07/566,085                   10/22/91
5,059,891                   07/458,066                   10/22/91
5,059,900                   07/558,603                   10/22/91
5,059,908                   07/531,047                   10/22/91
5,059,909                   07/328,254                   10/22/91
5,059,911                   07/602,599                   10/22/91
5,059,922                   07/615,117                   10/22/91
5,059,936                   07/347,619                   10/22/91
5,059,937                   07/602,462                   10/22/91
5,059,944                   07/389,065                   10/22/91
5,059,952                   07/515,625                   10/22/91
5,059,953                   07/507,656                   10/22/91
5,059,959                   06/740,641                   10/22/91
5,059,968                   07/626,364                   10/22/91
5,059,971                   07/550,324                   10/22/91
5,059,981                   07/480,884                   10/22/91
5,059,986                   07/566,506                   10/22/91
5,059,987                   07/504,883                   10/22/91
5,059,993                   07/601,549                   10/22/91
5,060,000                   07/427,037                   10/22/91
5,060,012                   07/359,581                   10/22/91
5,060,013                   07/561,043                   10/22/91
5,060,017                   07/450,054                   10/22/91
5,060,018                   07/577,112                   10/22/91
5,060,019                   07/429,221                   10/22/91
5,060,045                   07/422,640                   10/22/91
5,060,046                   07/658,453                   10/22/91
5,060,052                   07/577,234                   10/22/91
5,060,057                   07/584,009                   10/22/91
5,060,062                   07/517,830                   10/22/91
5,060,064                   07/460,326                   10/22/91
5,060,071                   07/554,462                   10/22/91
5,060,076                   07/476,998                   10/22/91
5,060,086                   07/311,224                   10/22/91
5,060,088                   07/372,722                   10/22/91
5,060,092                   07/348,821                   10/22/91
5,060,093                   07/336,346                   10/22/91
5,060,095                   07/305,236                   10/22/91
5,060,098                   07/339,490                   10/22/91
5,060,100                   07/463,838                   10/22/91
5,060,101                   07/472,185                   10/22/91
5,060,104                   07/558,428                   10/22/91
5,060,109                   07/520,723                   10/22/91
5,060,110                   07/575,106                   10/22/91
5,060,112                   07/503,252                   10/22/91
5,060,115                   07/590,186                   10/22/91
5,060,116                   07/513,342                   10/22/91
5,060,123                   07/695,015                   10/22/91
5,060,125                   07/673,138                   10/22/91
5,060,128                   07/501,464                   10/22/91
5,060,129                   07/638,814                   10/22/91
5,060,136                   07/293,913                   10/22/91
5,060,142                   07/197,056                   10/22/91
5,060,146                   07/179,179                   10/22/91
5,060,149                   07/409,264                   10/22/91
5,060,150                   07/649,247                   10/22/91
5,060,158                   07/411,983                   10/22/91
5,060,161                   07/442,994                   10/22/91
5,060,164                   07/383,528                   10/22/91
5,060,166                   07/446,739                   10/22/91
5,060,170                   07/391,290                   10/22/91
5,060,181                   07/460,589                   10/22/91
5,060,190                   07/584,347                   10/22/91
5,060,200                   07/347,320                   10/22/91
5,060,203                   07/543,994                   10/22/91
5,060,204                   07/545,030                   10/22/91
5,060,206                   07/587,389                   10/22/91
5,060,226                   07/548,675                   10/22/91
5,060,236                   07/097,457                   10/22/91
5,060,238                   07/455,328                   10/22/91
5,060,243                   07/530,703                   10/22/91
5,060,251                   07/578,663                   10/22/91
5,060,260                   07/558,090                   10/22/91
5,060,282                   07/499,120                   10/22/91
5,060,288                   07/573,500                   10/22/91
5,060,293                   07/424,412                   10/22/91
5,060,295                   07/129,882                   10/22/91
5,060,299                   07/414,894                   10/22/91
5,060,303                   07/240,514                   10/22/91
5,060,304                   07/456,520                   10/22/91

                   PATENTS WHICH EXPIRED ON October 24, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,459,875                   08/338,967                   10/24/95
5,459,877                   07/912,701                   10/24/95
5,459,878                   08/079,993                   10/24/95
5,459,879                   07/678,838                   10/24/95
5,459,884                   08/363,368                   10/24/95
5,459,885                   08/240,872                   10/24/95
5,459,887                   08/295,494                   10/24/95
5,459,889                   08/168,772                   10/24/95
5,459,890                   08/290,683                   10/24/95
5,459,895                   08/143,845                   10/24/95
5,459,897                   08/321,055                   10/24/95
5,459,898                   08/329,636                   10/24/95
5,459,905                   08/218,267                   10/24/95
5,459,908                   08/329,155                   10/24/95
5,459,911                   08/132,934                   10/24/95
5,459,920                   08/268,962                   10/24/95
5,459,925                   08/021,999                   10/24/95
5,459,934                   08/304,117                   10/24/95
5,459,936                   08/154,588                   10/24/95
5,459,938                   08/238,488                   10/24/95
5,459,940                   08/150,218                   10/24/95
5,459,942                   08/354,104                   10/24/95
5,459,945                   08/285,266                   10/24/95
5,459,950                   08/305,047                   10/24/95
5,459,959                   08/172,874                   10/24/95
5,459,961                   08/029,428                   10/24/95
5,459,964                   08/195,373                   10/24/95
5,459,966                   08/261,934                   10/24/95
5,459,970                   08/147,396                   10/24/95
5,459,975                   08/163,898                   10/24/95
5,459,988                   08/214,451                   10/24/95
5,459,989                   07/946,831                   10/24/95
5,460,000                   08/141,848                   10/24/95
5,460,013                   08/298,060                   10/24/95
5,460,014                   08/239,938                   10/24/95
5,460,020                   08/278,567                   10/24/95
5,460,029                   08/069,372                   10/24/95
5,460,030                   08/193,973                   10/24/95
5,460,042                   08/226,681                   10/24/95
5,460,049                   08/187,433                   10/24/95
5,460,052                   08/281,793                   10/24/95
5,460,053                   07/946,675                   10/24/95
5,460,055                   08/178,719                   10/24/95
5,460,063                   08/277,995                   10/24/95
5,460,067                   07/867,099                   10/24/95
5,460,068                   08/250,423                   10/24/95
5,460,071                   08/138,586                   10/24/95
5,460,072                   08/123,072                   10/24/95
5,460,075                   08/155,783                   10/24/95
5,460,079                   08/314,052                   10/24/95
5,460,085                   08/312,908                   10/24/95
5,460,094                   08/268,936                   10/24/95
5,460,101                   08/232,635                   10/24/95
5,460,103                   08/090,143                   10/24/95
5,460,105                   08/207,220                   10/24/95
5,460,108                   08/161,879                   10/24/95
5,460,112                   08/142,043                   10/24/95
5,460,121                   08/196,700                   10/24/95
5,460,122                   07/969,285                   10/24/95
5,460,126                   08/231,653                   10/24/95
5,460,150                   08/315,978                   10/24/95
5,460,151                   08/172,905                   10/24/95
5,460,164                   08/300,588                   10/24/95
5,460,165                   08/245,182                   10/24/95
5,460,169                   08/267,463                   10/24/95
5,460,174                   08/185,052                   10/24/95
5,460,178                   08/381,651                   10/24/95
5,460,181                   08/319,344                   10/24/95
5,460,186                   08/228,745                   10/24/95
5,460,191                   08/195,767                   10/24/95
5,460,192                   08/161,803                   10/24/95
5,460,193                   08/167,349                   10/24/95
5,460,195                   08/317,579                   10/24/95
5,460,200                   08/338,256                   10/24/95
5,460,208                   08/229,577                   10/24/95
5,460,212                   08/258,458                   10/24/95
5,460,215                   08/137,068                   10/24/95
5,460,217                   08/154,440                   10/24/95
5,460,219                   07/934,540                   10/24/95
5,460,222                   08/303,818                   10/24/95
5,460,227                   08/235,522                   10/24/95
5,460,229                   08/217,972                   10/24/95
5,460,234                   08/026,008                   10/24/95
5,460,238                   08/213,620                   10/24/95
5,460,239                   08/204,749                   10/24/95
5,460,248                   08/272,588                   10/24/95
5,460,253                   08/211,752                   10/24/95
5,460,254                   08/201,786                   10/24/95
5,460,264                   08/313,539                   10/24/95
5,460,270                   08/115,006                   10/24/95
5,460,276                   08/230,721                   10/24/95
5,460,277                   08/217,794                   10/24/95
5,460,278                   08/247,892                   10/24/95
5,460,280                   08/194,062                   10/24/95
5,460,293                   08/260,252                   10/24/95
5,460,299                   08/319,568                   10/24/95
5,460,300                   08/079,342                   10/24/95
5,460,305                   08/232,711                   10/24/95
5,460,306                   08/223,655                   10/24/95
5,460,308                   08/160,202                   10/24/95
5,460,311                   08/152,293                   10/24/95
5,460,315                   08/346,674                   10/24/95
5,460,322                   08/323,797                   10/24/95
5,460,323                   08/370,976                   10/24/95
5,460,324                   08/292,495                   10/24/95
5,460,326                   08/294,749                   10/24/95
5,460,339                   08/156,362                   10/24/95
5,460,343                   08/110,145                   10/24/95
5,460,344                   08/078,742                   10/24/95
5,460,345                   08/131,628                   10/24/95
5,460,348                   08/181,823                   10/24/95
5,460,351                   08/287,077                   10/24/95
5,460,353                   08/251,197                   10/24/95
5,460,356                   08/135,610                   10/24/95
5,460,358                   08/158,391                   10/24/95
5,460,360                   08/158,225                   10/24/95
5,460,372                   08/241,154                   10/24/95
5,460,378                   08/357,453                   10/24/95
5,460,379                   08/206,153                   10/24/95
5,460,380                   08/213,915                   10/24/95
5,460,381                   08/326,211                   10/24/95
5,460,382                   08/261,702                   10/24/95
5,460,392                   08/217,859                   10/24/95
5,460,393                   08/297,649                   10/24/95
5,460,394                   08/218,655                   10/24/95
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