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 17, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                     Application                      Issue
Number                        Number                         Date

4,706,301                   06/881,852                   11/17/87
4,706,304                   06/926,097                   11/17/87
4,706,323                   06/946,906                   11/17/87
4,706,333                   06/835,268                   11/17/87
4,706,341                   06/418,882                   11/17/87
4,706,343                   06/810,739                   11/17/87
4,706,345                   06/911,963                   11/17/87
4,706,350                   06/877,035                   11/17/87
4,706,353                   06/924,465                   11/17/87
4,706,357                   06/797,621                   11/17/87
4,706,363                   06/905,194                   11/17/87
4,706,364                   06/822,240                   11/17/87
4,706,366                   06/726,716                   11/17/87
4,706,377                   06/824,683                   11/17/87
4,706,378                   06/716,296                   11/17/87
4,706,380                   06/916,643                   11/17/87
4,706,381                   06/864,191                   11/17/87
4,706,382                   06/772,074                   11/17/87
4,706,405                   06/738,486                   11/17/87
4,706,415                   06/878,799                   11/17/87
4,706,437                   07/005,467                   11/17/87
4,706,442                   06/867,775                   11/17/87
4,706,446                   06/685,072                   11/17/87
4,706,455                   06/899,292                   11/17/87
4,706,457                   06/878,351                   11/17/87
4,706,465                   06/915,622                   11/17/87
4,706,472                   07/012,342                   11/17/87
4,706,477                   07/020,305                   11/17/87
4,706,479                   06/640,744                   11/17/87
4,706,480                   06/938,339                   11/17/87
4,706,482                   06/891,201                   11/17/87
4,706,485                   06/941,324                   11/17/87
4,706,487                   06/870,200                   11/17/87
4,706,491                   06/880,704                   11/17/87
4,706,492                   06/874,731                   11/17/87
4,706,499                   06/858,696                   11/17/87
4,706,507                   06/831,987                   11/17/87
4,706,510                   06/828,325                   11/17/87
4,706,518                   06/878,394                   11/17/87
4,706,523                   06/656,943                   11/17/87
4,706,536                   06/826,299                   11/17/87
4,706,546                   06/760,807                   11/17/87
4,706,563                   06/924,182                   11/17/87
4,706,566                   06/828,516                   11/17/87
4,706,571                   06/823,081                   11/17/87
4,706,572                   06/791,221                   11/17/87
4,706,587                   06/804,637                   11/17/87
4,706,588                   06/898,164                   11/17/87
4,706,589                   07/019,236                   11/17/87
4,706,591                   06/878,668                   11/17/87
4,706,601                   06/735,954                   11/17/87
4,706,604                   06/872,321                   11/17/87
4,706,607                   06/713,708                   11/17/87
4,706,609                   06/872,917                   11/17/87
4,706,616                   06/877,651                   11/17/87
4,706,617                   06/770,056                   11/17/87
4,706,627                   06/601,022                   11/17/87
4,706,634                   06/930,010                   11/17/87
4,706,635                   06/760,762                   11/17/87
4,706,636                   06/679,375                   11/17/87
4,706,647                   06/862,983                   11/17/87
4,706,674                   06/744,977                   11/17/87
4,706,676                   06/660,778                   11/17/87
4,706,677                   06/779,342                   11/17/87
4,706,678                   07/021,546                   11/17/87
4,706,679                   06/822,725                   11/17/87
4,706,682                   07/036,209                   11/17/87
4,706,683                   06/811,814                   11/17/87
4,706,684                   06/880,250                   11/17/87
4,706,690                   06/937,689                   11/17/87
4,706,693                   06/427,193                   11/17/87
4,706,695                   06/850,221                   11/17/87
4,706,697                   06/727,506                   11/17/87
4,706,721                   06/802,495                   11/17/87
4,706,735                   07/014,097                   11/17/87
4,706,746                   06/924,250                   11/17/87
4,706,752                   06/677,182                   11/17/87
4,706,753                   06/926,675                   11/17/87
4,706,758                   06/863,490                   11/17/87
4,706,760                   06/810,979                   11/17/87
4,706,761                   06/696,725                   11/17/87
4,706,776                   06/825,286                   11/17/87
4,706,781                   06/833,952                   11/17/87
4,706,782                   06/850,864                   11/17/87
4,706,786                   06/822,566                   11/17/87
4,706,787                   07/006,964                   11/17/87
4,706,788                   06/723,546                   11/17/87
4,706,796                   06/762,634                   11/17/87
4,706,802                   06/865,219                   11/17/87
4,706,807                   06/858,192                   11/17/87
4,706,820                   06/920,214                   11/17/87
4,706,823                   06/887,959                   11/17/87
4,706,832                   06/908,339                   11/17/87
4,706,834                   07/012,138                   11/17/87
4,706,843                   06/928,182                   11/17/87
4,706,849                   06/894,629                   11/17/87
4,706,854                   06/826,200                   11/17/87
4,706,856                   06/837,862                   11/17/87
4,706,861                   06/913,830                   11/17/87
4,706,872                   06/919,703                   11/17/87
4,706,874                   07/013,147                   11/17/87
4,706,875                   06/930,400                   11/17/87
4,706,878                   06/890,740                   11/17/87
4,706,893                   06/882,475                   11/17/87
4,706,898                   06/867,911                   11/17/87
4,706,904                   06/850,507                   11/17/87
4,706,906                   06/860,828                   11/17/87
4,706,914                   06/890,619                   11/17/87
4,706,920                   06/930,499                   11/17/87
4,706,921                   06/819,717                   11/17/87
4,706,937                   06/884,100                   11/17/87
4,706,938                   06/733,908                   11/17/87
4,706,942                   06/892,042                   11/17/87
4,706,949                   06/810,873                   11/17/87
4,706,962                   06/867,057                   11/17/87
4,706,980                   06/841,280                   11/17/87
4,706,988                   06/928,813                   11/17/87
4,706,996                   06/649,539                   11/17/87
4,707,004                   06/787,626                   11/17/87
4,707,014                   06/930,833                   11/17/87
4,707,017                   07/001,214                   11/17/87
4,707,019                   59/000,003                   11/17/87
4,707,021                   06/926,710                   11/17/87
4,707,027                   06/834,425                   11/17/87
4,707,031                   06/882,746                   11/17/87
4,707,035                   06/894,391                   11/17/87
4,707,048                   06/926,929                   11/17/87
4,707,053                   06/711,374                   11/17/87
4,707,057                   06/631,851                   11/17/87
4,707,058                   06/775,551                   11/17/87
4,707,060                   06/720,112                   11/17/87
4,707,065                   06/679,042                   11/17/87
4,707,070                   06/737,982                   11/17/87
4,707,075                   06/758,402                   11/17/87
4,707,093                   06/867,990                   11/17/87
4,707,096                   07/002,530                   11/17/87
4,707,102                   07/002,469                   11/17/87
4,707,106                   06/835,299                   11/17/87
4,707,107                   06/935,877                   11/17/87
4,707,110                   06/944,844                   11/17/87
4,707,122                   06/910,708                   11/17/87
4,707,123                   06/869,654                   11/17/87
4,707,128                   06/687,989                   11/17/87
4,707,137                   06/791,421                   11/17/87
4,707,167                   06/901,376                   11/17/87
4,707,168                   06/867,344                   11/17/87
4,707,176                   06/723,232                   11/17/87
4,707,177                   06/919,535                   11/17/87
4,707,180                   06/744,728                   11/17/87
4,707,214                   06/929,704                   11/17/87
4,707,217                   06/868,399                   11/17/87
4,707,220                   06/840,531                   11/17/87
4,707,222                   06/716,836                   11/17/87
4,707,234                   06/922,727                   11/17/87
4,707,240                   06/907,702                   11/17/87
4,707,242                   06/760,144                   11/17/87
4,707,245                   06/811,488                   11/17/87
4,707,246                   06/930,637                   11/17/87
4,707,251                   06/746,866                   11/17/87
4,707,254                   07/024,511                   11/17/87
4,707,256                   06/853,024                   11/17/87
4,707,267                   07/005,803                   11/17/87
4,707,273                   06/860,269                   11/17/87
4,707,275                   06/909,067                   11/17/87
4,707,278                   06/803,392                   11/17/87
4,707,285                   07/003,780                   11/17/87
4,707,291                   06/870,252                   11/17/87
4,707,294                   06/773,711                   11/17/87
4,707,296                   06/933,618                   11/17/87
4,707,306                   06/940,701                   11/17/87
4,707,314                   06/752,081                   11/17/87
4,707,317                   06/835,086                   11/17/87
4,707,319                   06/870,303                   11/17/87
4,707,321                   06/788,740                   11/17/87
4,707,330                   06/689,733                   11/17/87
4,707,331                   06/798,194                   11/17/87
4,707,338                   06/932,611                   11/17/87
4,707,339                   06/513,705                   11/17/87
4,707,343                   06/821,616                   11/17/87
4,707,346                   06/854,116                   11/17/87
4,707,348                   06/853,810                   11/17/87
4,707,376                   06/800,354                   11/17/87
4,707,377                   06/925,511                   11/17/87
4,707,378                   06/884,330                   11/17/87
4,707,379                   06/812,964                   11/17/87
4,707,383                   06/788,509                   11/17/87
4,707,393                   06/552,924                   11/17/87
4,707,394                   06/909,256                   11/17/87
4,707,399                   06/809,065                   11/17/87
4,707,404                   06/717,139                   11/17/87
4,707,406                   06/815,249                   11/17/87
4,707,435                   06/484,518                   11/17/87
4,707,437                   06/924,383                   11/17/87
4,707,439                   06/665,400                   11/17/87
4,707,446                   06/497,654                   11/17/87
4,707,447                   06/497,658                   11/17/87
4,707,450                   06/912,081                   11/17/87
4,707,451                   06/777,355                   11/17/87
4,707,453                   06/720,397                   11/17/87
4,707,454                   06/580,875                   11/17/87
4,707,461                   06/792,725                   11/17/87
4,707,463                   06/901,263                   11/17/87
4,707,465                   06/645,385                   11/17/87
4,707,477                   06/881,868                   11/17/87
4,707,479                   06/806,057                   11/17/87
4,707,480                   06/783,311                   11/17/87
4,707,486                   06/781,808                   11/17/87
4,707,487                   06/840,956                   11/17/87
4,707,493                   06/931,587                   11/17/87
4,707,494                   06/900,564                   11/17/87
4,707,499                   06/935,880                   11/17/87
4,707,503                   06/800,087                   11/17/87
4,707,507                   06/904,130                   11/17/87
4,707,508                   06/913,236                   11/17/87
4,707,509                   06/902,379                   11/17/87
4,707,510                   07/029,345                   11/17/87
4,707,511                   06/809,275                   11/17/87
4,707,522                   06/859,597                   11/17/87
4,707,525                   06/930,989                   11/17/87
4,707,528                   06/758,802                   11/17/87
4,707,533                   06/939,384                   11/17/87
4,707,536                   06/804,615                   11/17/87
4,707,543                   06/777,068                   11/17/87
4,707,551                   06/842,618                   11/17/87
4,707,552                   06/777,129                   11/17/87
4,707,557                   07/011,804                   11/17/87
4,707,558                   06/903,165                   11/17/87
4,707,569                   06/866,313                   11/17/87
4,707,576                   06/867,532                   11/17/87
4,707,577                   07/031,693                   11/17/87
4,707,579                   07/018,258                   11/17/87
4,707,585                   06/840,167                   11/17/87
4,707,588                   06/906,028                   11/17/87
4,707,600                   07/020,241                   11/17/87
4,707,602                   06/801,207                   11/17/87
4,707,606                   06/658,114                   11/17/87
4,707,622                   06/815,061                   11/17/87
4,707,625                   06/712,141                   11/17/87
4,707,626                   06/634,897                   11/17/87
4,707,633                   06/797,697                   11/17/87
4,707,641                   06/924,429                   11/17/87
4,707,645                   06/924,902                   11/17/87
4,707,650                   06/915,288                   11/17/87
4,707,654                   06/773,302                   11/17/87
4,707,656                   06/712,803                   11/17/87
4,707,660                   06/768,400                   11/17/87
4,707,665                   06/575,429                   11/17/87
4,707,669                   06/864,862                   11/17/87
4,707,670                   06/836,111                   11/17/87
4,707,675                   06/845,634                   11/17/87
4,707,676                   06/870,376                   11/17/87
4,707,690                   06/633,430                   11/17/87
4,707,692                   06/677,112                   11/17/87
4,707,697                   06/858,812                   11/17/87
4,707,703                   06/883,127                   11/17/87
4,707,709                   06/819,580                   11/17/87
4,707,711                   06/863,439                   11/17/87
4,707,716                   06/895,983                   11/17/87
4,707,718                   06/635,401                   11/17/87
4,707,721                   06/831,379                   11/17/87
4,707,723                   06/830,129                   11/17/87
4,707,724                   07/000,175                   11/17/87
4,707,725                   06/900,441                   11/17/87
4,707,728                   06/687,462                   11/17/87
4,707,733                   06/715,499                   11/17/87
4,707,736                   06/897,352                   11/17/87
4,707,742                   06/724,848                   11/17/87
4,707,747                   06/630,884                   11/17/87
4,707,752                   06/446,276                   11/17/87
4,707,757                   06/644,256                   11/17/87
4,707,776                   06/929,758                   11/17/87
4,707,784                   06/894,082                   11/17/87
4,707,797                   06/713,785                   11/17/87
4,707,803                   06/745,728                   11/17/87
4,707,804                   06/581,894                   11/17/87
4,707,814                   06/711,842                   11/17/87
4,707,821                   06/623,046                   11/17/87
4,707,823                   06/887,682                   11/17/87
4,707,829                   06/911,574                   11/17/87
4,707,834                   06/777,104                   11/17/87
4,707,844                   06/875,806                   11/17/87

                  PATENTS WHICH EXPIRED ON November 12, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,063,614                   07/647,480                   11/12/91
5,063,615                   07/572,479                   11/12/91
5,063,619                   07/532,024                   11/12/91
5,063,620                   07/536,614                   11/12/91
5,063,621                   07/547,053                   11/12/91
5,063,634                   07/472,834                   11/12/91
5,063,636                   07/579,409                   11/12/91
5,063,645                   07/514,613                   11/12/91
5,063,649                   07/645,596                   11/12/91
5,063,657                   07/646,219                   11/12/91
5,063,664                   07/513,799                   11/12/91
5,063,665                   07/536,510                   11/12/91
5,063,666                   07/707,610                   11/12/91
5,063,678                   07/046,395                   11/12/91
5,063,686                   07/598,849                   11/12/91
5,063,687                   07/588,817                   11/12/91
5,063,693                   06/870,532                   11/12/91
5,063,696                   07/655,009                   11/12/91
5,063,700                   07/501,235                   11/12/91
5,063,703                   07/540,676                   11/12/91
5,063,704                   07/565,937                   11/12/91
5,063,707                   07/503,421                   11/12/91
5,063,722                   07/331,236                   11/12/91
5,063,724                   07/279,945                   11/12/91
5,063,729                   07/584,675                   11/12/91
5,063,735                   07/599,722                   11/12/91
5,063,737                   07/575,915                   11/12/91
5,063,742                   07/385,197                   11/12/91
5,063,744                   07/415,918                   11/12/91
5,063,747                   07/545,236                   11/12/91
5,063,756                   07/465,070                   11/12/91
5,063,759                   07/566,120                   11/12/91
5,063,761                   07/710,757                   11/12/91
5,063,762                   07/544,708                   11/12/91
5,063,768                   07/602,742                   11/12/91
5,063,769                   07/640,095                   11/12/91
5,063,770                   07/545,814                   11/12/91
5,063,778                   07/546,746                   11/12/91
5,063,781                   07/389,189                   11/12/91
5,063,785                   07/564,056                   11/12/91
5,063,787                   07/584,220                   11/12/91
5,063,800                   07/408,706                   11/12/91
5,063,802                   07/604,852                   11/12/91
5,063,813                   07/382,456                   11/12/91
5,063,816                   07/628,427                   11/12/91
5,063,817                   07/485,597                   11/12/91
5,063,824                   06/948,092                   11/12/91
5,063,825                   06/948,091                   11/12/91
5,063,830                   07/651,029                   11/12/91
5,063,835                   07/538,881                   11/12/91
5,063,841                   07/538,203                   11/12/91
5,063,848                   07/598,314                   11/12/91
5,063,850                   07/473,987                   11/12/91
5,063,853                   07/657,635                   11/12/91
5,063,858                   07/428,630                   11/12/91
5,063,861                   07/666,441                   11/12/91
5,063,863                   07/563,488                   11/12/91
5,063,864                   07/581,769                   11/12/91
5,063,871                   07/476,584                   11/12/91
5,063,882                   07/625,353                   11/12/91
5,063,884                   07/590,795                   11/12/91
5,063,890                   07/532,151                   11/12/91
5,063,899                   07/620,863                   11/12/91
5,063,903                   07/551,402                   11/12/91
5,063,908                   07/360,257                   11/12/91
5,063,912                   07/552,944                   11/12/91
5,063,920                   07/580,603                   11/12/91
5,063,924                   07/578,825                   11/12/91
5,063,925                   07/374,066                   11/12/91
5,063,930                   07/489,089                   11/12/91
5,063,948                   07/508,271                   11/12/91
5,063,949                   07/525,998                   11/12/91
5,063,954                   07/539,229                   11/12/91
5,063,960                   07/648,582                   11/12/91
5,063,963                   07/565,007                   11/12/91
5,063,966                   07/588,919                   11/12/91
5,063,970                   07/534,638                   11/12/91
5,063,971                   07/543,661                   11/12/91
5,063,973                   07/489,673                   11/12/91
5,063,979                   07/444,404                   11/12/91
5,063,984                   07/668,970                   11/12/91
5,063,985                   07/538,614                   11/12/91
5,063,999                   07/639,038                   11/12/91
5,064,008                   07/614,870                   11/12/91
5,064,009                   07/558,461                   11/12/91
5,064,010                   07/369,129                   11/12/91
5,064,014                   07/432,783                   11/12/91
5,064,020                   07/615,067                   11/12/91
5,064,027                   07/601,318                   11/12/91
5,064,033                   07/668,736                   11/12/91
5,064,035                   07/554,990                   11/12/91
5,064,037                   07/486,793                   11/12/91
5,064,039                   07/649,412                   11/12/91
5,064,042                   07/516,085                   11/12/91
5,064,046                   07/597,213                   11/12/91
5,064,047                   07/668,528                   11/12/91
5,064,054                   07/618,984                   11/12/91
5,064,062                   07/513,234                   11/12/91
5,064,063                   07/564,247                   11/12/91
5,064,075                   07/679,176                   11/12/91
5,064,076                   07/609,293                   11/12/91
5,064,087                   07/616,984                   11/12/91
5,064,088                   07/557,967                   11/12/91
5,064,100                   07/497,433                   11/12/91
5,064,101                   07/429,553                   11/12/91
5,064,104                   07/565,279                   11/12/91
5,064,106                   07/556,609                   11/12/91
5,064,111                   07/591,645                   11/12/91
5,064,114                   07/556,666                   11/12/91
5,064,115                   07/563,404                   11/12/91
5,064,124                   07/654,816                   11/12/91
5,064,126                   07/455,401                   11/12/91
5,064,131                   07/549,123                   11/12/91
5,064,134                   07/537,837                   11/12/91
5,064,140                   07/594,506                   11/12/91
5,064,143                   07/505,787                   11/12/91
5,064,145                   07/585,663                   11/12/91
5,064,155                   07/486,326                   11/12/91
5,064,177                   07/620,436                   11/12/91
5,064,179                   07/673,169                   11/12/91
5,064,182                   07/571,973                   11/12/91
5,064,184                   07/500,774                   11/12/91
5,064,189                   07/436,740                   11/12/91
5,064,190                   07/484,103                   11/12/91
5,064,202                   07/692,667                   11/12/91
5,064,215                   07/423,443                   11/12/91
5,064,217                   07/558,433                   11/12/91
5,064,220                   07/540,949                   11/12/91
5,064,223                   07/418,426                   11/12/91
5,064,227                   07/591,837                   11/12/91
5,064,230                   07/673,533                   11/12/91
5,064,233                   07/504,533                   11/12/91
5,064,241                   07/550,441                   11/12/91
5,064,245                   07/594,627                   11/12/91
5,064,248                   07/592,830                   11/12/91
5,064,249                   07/506,229                   11/12/91
5,064,250                   07/365,649                   11/12/91
5,064,255                   07/523,224                   11/12/91
5,064,267                   07/580,920                   11/12/91
5,064,271                   07/322,866                   11/12/91
5,064,279                   07/575,402                   11/12/91
5,064,283                   07/407,186                   11/12/91
5,064,293                   07/636,073                   11/12/91
5,064,303                   07/547,249                   11/12/91
5,064,309                   07/551,462                   11/12/91
5,064,312                   07/559,154                   11/12/91
5,064,317                   07/469,072                   11/12/91
5,064,335                   07/507,135                   11/12/91
5,064,337                   07/552,852                   11/12/91
5,064,339                   07/636,657                   11/12/91
5,064,347                   07/617,669                   11/12/91
5,064,357                   07/470,726                   11/12/91
5,064,359                   07/552,988                   11/12/91
5,064,365                   07/551,294                   11/12/91
5,064,371                   07/675,409                   11/12/91
5,064,374                   07/318,923                   11/12/91
5,064,380                   07/532,463                   11/12/91
5,064,381                   07/664,354                   11/12/91
5,064,386                   07/618,766                   11/12/91
5,064,388                   07/584,160                   11/12/91
5,064,397                   07/482,140                   11/12/91
5,064,406                   07/576,846                   11/12/91
5,064,411                   07/542,189                   11/12/91
5,064,419                   07/458,637                   11/12/91
5,064,423                   07/485,601                   11/12/91
5,064,426                   07/319,949                   11/12/91
5,064,429                   07/615,566                   11/12/91
5,064,431                   07/641,914                   11/12/91
5,064,434                   07/647,680                   11/12/91
5,064,439                   07/005,091                   11/12/91
5,064,444                   07/348,574                   11/12/91
5,064,445                   07/488,115                   11/12/91
5,064,447                   07/649,351                   11/12/91
5,064,448                   07/639,485                   11/12/91
5,064,453                   07/444,554                   11/12/91
5,064,454                   07/448,845                   11/12/91
5,064,459                   07/541,954                   11/12/91
5,064,466                   07/622,350                   11/12/91
5,064,468                   07/334,546                   11/12/91
5,064,469                   07/416,570                   11/12/91
5,064,471                   07/439,249                   11/12/91
5,064,481                   07/524,540                   11/12/91
5,064,482                   07/610,552                   11/12/91
5,064,485                   07/513,643                   11/12/91
5,064,509                   07/589,687                   11/12/91
5,064,514                   07/502,099                   11/12/91
5,064,517                   07/463,392                   11/12/91
5,064,518                   07/608,140                   11/12/91
5,064,523                   07/267,289                   11/12/91
5,064,524                   07/500,426                   11/12/91
5,064,529                   07/396,912                   11/12/91
5,064,544                   07/532,430                   11/12/91
5,064,549                   07/615,861                   11/12/91
5,064,552                   07/660,267                   11/12/91
5,064,562                   07/594,558                   11/12/91
5,064,570                   07/469,704                   11/12/91
5,064,572                   07/608,620                   11/12/91
5,064,580                   07/380,058                   11/12/91
5,064,581                   06/907,931                   11/12/91
5,064,582                   07/407,840                   11/12/91
5,064,594                   07/584,337                   11/12/91
5,064,596                   07/574,527                   11/12/91
5,064,599                   07/512,566                   11/12/91
5,064,611                   07/642,353                   11/12/91
5,064,616                   07/583,532                   11/12/91
5,064,621                   07/642,306                   11/12/91
5,064,622                   07/395,880                   11/12/91
5,064,629                   07/624,182                   11/12/91
5,064,635                   07/566,556                   11/12/91
5,064,636                   07/424,053                   11/12/91
5,064,637                   07/358,789                   11/12/91
5,064,639                   07/281,519                   11/12/91
5,064,642                   07/582,150                   11/12/91
5,064,645                   07/558,599                   11/12/91
5,064,650                   07/333,189                   11/12/91
5,064,652                   07/435,420                   11/12/91
5,064,662                   07/612,864                   11/12/91
5,064,666                   07/490,829                   11/12/91
5,064,673                   07/629,903                   11/12/91
5,064,678                   07/511,587                   11/12/91
5,064,679                   07/572,624                   11/12/91
5,064,681                   07/364,071                   11/12/91
5,064,683                   07/604,855                   11/12/91
5,064,688                   07/587,098                   11/12/91
5,064,689                   07/508,052                   11/12/91
5,064,700                   07/424,105                   11/12/91
5,064,701                   07/419,210                   11/12/91
5,064,704                   07/414,412                   11/12/91
5,064,705                   07/399,677                   11/12/91
5,064,708                   07/340,463                   11/12/91
5,064,718                   07/515,747                   11/12/91
5,064,720                   07/396,658                   11/12/91
5,064,725                   07/645,810                   11/12/91
5,064,727                   07/467,723                   11/12/91
5,064,738                   07/417,147                   11/12/91
5,064,743                   07/352,108                   11/12/91
5,064,748                   07/454,759                   11/12/91
5,064,758                   07/460,921                   11/12/91
5,064,759                   07/501,047                   11/12/91
5,064,763                   07/329,169                   11/12/91
5,064,764                   07/555,436                   11/12/91
5,064,765                   07/486,848                   11/12/91
5,064,767                   07/541,526                   11/12/91
5,064,770                   07/388,203                   11/12/91
5,064,772                   07/577,457                   11/12/91
5,064,777                   07/664,684                   11/12/91
5,064,786                   07/480,390                   11/12/91
5,064,787                   07/439,419                   11/12/91
5,064,788                   07/449,526                   11/12/91
5,064,789                   07/588,874                   11/12/91
5,064,793                   07/345,687                   11/12/91
5,064,805                   07/414,788                   11/12/91
5,064,806                   07/372,811                   11/12/91
5,064,814                   07/505,286                   11/12/91
5,064,824                   07/347,567                   11/12/91
5,064,826                   07/487,412                   11/12/91
5,064,828                   07/470,229                   11/12/91
5,064,832                   07/568,371                   11/12/91
5,064,833                   07/520,561                   11/12/91
5,064,843                   07/501,888                   11/12/91
5,064,845                   07/631,803                   11/12/91
5,064,854                   07/376,489                   11/12/91
5,064,855                   07/649,120                   11/12/91
5,064,860                   07/579,138                   11/12/91
5,064,865                   07/630,471                   11/12/91
5,064,868                   07/618,854                   11/12/91
5,064,871                   07/612,724                   11/12/91
5,064,873                   07/342,508                   11/12/91
5,064,879                   07/604,047                   11/12/91
5,064,885                   07/655,204                   11/12/91
5,064,891                   07/525,047                   11/12/91
5,064,897                   07/574,843                   11/12/91
5,064,899                   07/497,817                   11/12/91
5,064,900                   07/469,748                   11/12/91
5,064,912                   07/624,363                   11/12/91
5,064,923                   07/325,183                   11/12/91
5,064,925                   07/400,637                   11/12/91
5,064,929                   07/531,188                   11/12/91
5,064,932                   07/498,527                   11/12/91
5,064,934                   07/502,275                   11/12/91
5,064,937                   07/534,338                   11/12/91
5,064,939                   07/475,767                   11/12/91
5,064,942                   07/384,283                   11/12/91
5,064,952                   07/464,860                   11/12/91
5,064,957                   07/492,937                   11/12/91
5,064,959                   07/317,562                   11/12/91
5,064,961                   07/451,664                   11/12/91
5,064,966                   07/597,140                   11/12/91
5,064,970                   07/474,980                   11/12/91
5,064,976                   07/556,012                   11/12/91
5,064,980                   07/535,725                   11/12/91
5,064,982                   07/394,143                   11/12/91
5,064,984                   07/582,066                   11/12/91
5,064,986                   07/421,554                   11/12/91
5,064,987                   07/573,482                   11/12/91
5,065,011                   07/553,609                   11/12/91
5,065,014                   07/487,101                   11/12/91
5,065,026                   06/606,737                   11/12/91
5,065,030                   07/579,822                   11/12/91
5,065,041                   07/293,714                   11/12/91
5,065,051                   07/346,160                   11/12/91
5,065,062                   07/423,960                   11/12/91
5,065,071                   07/459,886                   11/12/91
5,065,072                   07/500,290                   11/12/91
5,065,074                   07/669,014                   11/12/91
5,065,085                   07/429,608                   11/12/91
5,065,102                   07/347,642                   11/12/91
5,065,105                   07/445,034                   11/12/91
5,065,106                   07/660,169                   11/12/91
5,065,109                   07/598,294                   11/12/91
5,065,123                   07/591,034                   11/12/91
5,065,129                   07/557,143                   11/12/91
5,065,132                   07/614,473                   11/12/91
5,065,134                   07/477,953                   11/12/91
5,065,149                   07/434,992                   11/12/91
5,065,150                   07/380,197                   11/12/91
5,065,161                   07/459,837                   11/12/91
5,065,163                   07/569,560                   11/12/91
5,065,164                   07/390,791                   11/12/91
5,065,183                   07/368,382                   11/12/91
5,065,190                   07/585,383                   11/12/91
5,065,192                   07/429,449                   11/12/91
5,065,193                   07/525,903                   11/12/91
5,065,194                   07/530,145                   11/12/91
5,065,196                   07/560,590                   11/12/91
5,065,205                   07/350,814                   11/12/91
5,065,207                   07/655,138                   11/12/91
5,065,216                   07/477,544                   11/12/91
5,065,236                   07/608,452                   11/12/91
5,065,250                   07/541,903                   11/12/91
5,065,253                   07/289,150                   11/12/91
5,065,265                   07/495,761                   11/12/91
5,065,267                   07/554,928                   11/12/91
5,065,272                   07/638,555                   11/12/91
5,065,279                   07/568,111                   11/12/91
5,065,280                   07/575,098                   11/12/91
5,065,281                   07/479,073                   11/12/91
5,065,282                   07/444,709                   11/12/91
5,065,286                   07/604,507                   11/12/91
5,065,299                   07/674,780                   11/12/91
5,065,310                   07/349,621                   11/12/91
5,065,315                   07/426,113                   11/12/91
5,065,324                   07/494,541                   11/12/91
5,065,325                   07/556,371                   11/12/91
5,065,330                   07/363,393                   11/12/91
5,065,332                   07/368,349                   11/12/91
5,065,334                   07/345,601                   11/12/91
5,065,339                   07/526,866                   11/12/91
5,065,350                   07/493,213                   11/12/91
5,065,371                   07/556,830                   11/12/91
5,065,373                   07/233,278                   11/12/91
5,065,374                   07/112,155                   11/12/91
5,065,376                   07/459,797                   11/12/91
5,065,385                   07/372,759                   11/12/91
5,065,389                   07/521,068                   11/12/91
5,065,390                   07/341,115                   11/12/91
5,065,410                   59/000,002                   11/12/91
5,065,421                   07/442,579                   11/12/91
5,065,438                   07/425,967                   11/12/91
5,065,441                   07/544,663                   11/12/91
5,065,445                   07/222,431                   11/12/91
5,065,448                   07/674,253                   11/12/91
5,065,452                   07/447,165                   11/12/91
5,065,454                   07/516,773                   11/12/91

                  PATENTS WHICH EXPIRED ON November 14, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,465,423                   08/060,687                   11/14/95
5,465,425                   08/198,293                   11/14/95
5,465,427                   08/188,670                   11/14/95
5,465,428                   08/098,716                   11/14/95
5,465,430                   08/303,732                   11/14/95
5,465,431                   08/299,522                   11/14/95
5,465,434                   08/219,186                   11/14/95
5,465,436                   08/366,220                   11/14/95
5,465,439                   08/352,228                   11/14/95
5,465,441                   08/279,351                   11/14/95
5,465,446                   08/368,347                   11/14/95
5,465,449                   08/329,461                   11/14/95
5,465,453                   08/273,310                   11/14/95
5,465,454                   08/320,225                   11/14/95
5,465,465                   08/076,783                   11/14/95
5,465,467                   08/340,893                   11/14/95
5,465,471                   07/771,343                   11/14/95
5,465,475                   08/099,103                   11/14/95
5,465,483                   08/203,631                   11/14/95
5,465,500                   08/250,157                   11/14/95
5,465,507                   08/227,317                   11/14/95
5,465,511                   08/092,227                   11/14/95
5,465,512                   08/266,807                   11/14/95
5,465,518                   08/230,301                   11/14/95
5,465,519                   08/261,096                   11/14/95
5,465,521                   08/340,598                   11/14/95
5,465,523                   07/787,579                   11/14/95
5,465,525                   08/338,677                   11/14/95
5,465,526                   08/311,409                   11/14/95
5,465,527                   08/378,632                   11/14/95
5,465,529                   08/274,864                   11/14/95
5,465,531                   08/146,939                   11/14/95
5,465,532                   08/302,218                   11/14/95
5,465,536                   08/187,936                   11/14/95
5,465,537                   08/328,197                   11/14/95
5,465,541                   08/207,696                   11/14/95
5,465,543                   08/445,582                   11/14/95
5,465,547                   08/082,547                   11/14/95
5,465,549                   08/135,688                   11/14/95
5,465,561                   08/339,344                   11/14/95
5,465,562                   08/159,516                   11/14/95
5,465,563                   08/335,361                   11/14/95
5,465,574                   08/211,731                   11/14/95
5,465,596                   08/373,563                   11/14/95
5,465,601                   08/179,915                   11/14/95
5,465,634                   08/212,845                   11/14/95
5,465,637                   08/223,228                   11/14/95
5,465,640                   08/152,785                   11/14/95
5,465,641                   08/122,541                   11/14/95
5,465,642                   08/361,221                   11/14/95
5,465,645                   08/325,614                   11/14/95
5,465,652                   08/197,265                   11/14/95
5,465,653                   08/006,501                   11/14/95
5,465,669                   08/351,031                   11/14/95
5,465,671                   08/205,207                   11/14/95
5,465,672                   08/243,383                   11/14/95
5,465,675                   08/281,751                   11/14/95
5,465,676                   08/409,596                   11/14/95
5,465,682                   08/122,780                   11/14/95
5,465,688                   08/072,226                   11/14/95
5,465,689                   08/353,506                   11/14/95
5,465,695                   08/268,875                   11/14/95
5,465,696                   08/256,836                   11/14/95
5,465,704                   08/218,119                   11/14/95
5,465,709                   08/150,521                   11/14/95
5,465,725                   08/381,607                   11/14/95
5,465,734                   08/223,332                   11/14/95
5,465,736                   07/306,808                   11/14/95
5,465,739                   07/945,042                   11/14/95
5,465,741                   08/217,729                   11/14/95
5,465,743                   08/310,704                   11/14/95
5,465,745                   08/407,073                   11/14/95
5,465,746                   08/181,518                   11/14/95
5,465,750                   08/243,968                   11/14/95
5,465,751                   08/355,699                   11/14/95
5,465,752                   08/206,406                   11/14/95
5,465,754                   08/335,534                   11/14/95
5,465,766                   08/054,597                   11/14/95
5,465,768                   08/204,579                   11/14/95
5,465,779                   08/278,834                   11/14/95
5,465,796                   08/232,541                   11/14/95
5,465,801                   08/210,472                   11/14/95
5,465,802                   08/260,785                   11/14/95
5,465,803                   08/128,577                   11/14/95
5,465,809                   08/287,304                   11/14/95
5,465,812                   08/251,608                   11/14/95
5,465,823                   08/256,072                   11/14/95
5,465,829                   08/389,556                   11/14/95
5,465,832                   08/147,831                   11/14/95
5,465,833                   08/041,828                   11/14/95
5,465,839                   08/297,129                   11/14/95
5,465,840                   08/188,463                   11/14/95
5,465,847                   08/011,160                   11/14/95
5,465,855                   08/226,074                   11/14/95
5,465,865                   08/316,209                   11/14/95
5,465,867                   08/294,246                   11/14/95
5,465,868                   08/214,465                   11/14/95
5,465,869                   08/276,537                   11/14/95
5,465,871                   08/237,336                   11/14/95
5,465,876                   08/258,201                   11/14/95
5,465,884                   08/248,959                   11/14/95
5,465,887                   08/112,129                   11/14/95
5,465,888                   08/189,146                   11/14/95
5,465,889                   08/297,011                   11/14/95
5,465,890                   08/145,985                   11/14/95
5,465,900                   08/372,850                   11/14/95
5,465,902                   08/239,909                   11/14/95
5,465,903                   07/829,709                   11/14/95
5,465,909                   08/061,775                   11/14/95
5,465,914                   08/172,951                   11/14/95
5,465,924                   08/152,000                   11/14/95
5,465,929                   08/110,306                   11/14/95
5,465,933                   08/285,815                   11/14/95
5,465,935                   08/237,696                   11/14/95
5,465,936                   08/291,162                   11/14/95
5,465,940                   08/303,733                   11/14/95
5,465,944                   08/244,391                   11/14/95
5,465,946                   08/185,504                   11/14/95
5,465,951                   08/183,496                   11/14/95
5,465,959                   08/357,311                   11/14/95
5,465,960                   08/315,527                   11/14/95
5,465,961                   08/251,681                   11/14/95
5,465,967                   08/331,466                   11/14/95
5,465,968                   08/219,892                   11/14/95
5,465,969                   08/182,771                   11/14/95
5,465,971                   08/334,961                   11/14/95
5,465,973                   08/400,502                   11/14/95
5,465,974                   08/303,324                   11/14/95
5,465,976                   08/358,478                   11/14/95
5,465,981                   08/374,509                   11/14/95
5,465,985                   08/226,989                   11/14/95
5,465,988                   08/318,547                   11/14/95
5,465,989                   08/153,746                   11/14/95
5,465,993                   08/209,241                   11/14/95
5,465,994                   08/191,466                   11/14/95
5,465,995                   08/118,569                   11/14/95
5,465,996                   08/238,512                   11/14/95
5,466,008                   08/186,416                   11/14/95
5,466,019                   08/312,055                   11/14/95
5,466,023                   08/236,889                   11/14/95
5,466,026                   08/337,042                   11/14/95
5,466,027                   08/428,333                   11/14/95
5,466,030                   08/149,451                   11/14/95
5,466,037                   08/097,204                   11/14/95
5,466,040                   08/186,857                   11/14/95
5,466,042                   08/209,996                   11/14/95
5,466,044                   08/300,950                   11/14/95
5,466,045                   08/318,293                   11/14/95
5,466,056                   08/342,907                   11/14/95
5,466,058                   08/291,127                   11/14/95
5,466,064                   08/447,792                   11/14/95
5,466,073                   08/327,850                   11/14/95
5,466,099                   08/322,058                   11/14/95
5,466,103                   08/082,023                   11/14/95
5,466,104                   08/092,966                   11/14/95
5,466,108                   08/244,585                   11/14/95
5,466,116                   08/328,890                   11/14/95
5,466,119                   08/231,909                   11/14/95
5,466,139                   08/275,044                   11/14/95
5,466,154                   08/095,545                   11/14/95
5,466,167                   08/029,684                   11/14/95
5,466,169                   08/285,151                   11/14/95
5,466,174                   08/142,938                   11/14/95
5,466,182                   08/241,497                   11/14/95
5,466,186                   08/340,149                   11/14/95
5,466,190                   08/280,231                   11/14/95
5,466,191                   08/227,400                   11/14/95
5,466,192                   08/165,019                   11/14/95
5,466,196                   08/394,150                   11/14/95
5,466,197                   08/064,002                   11/14/95
5,466,207                   08/169,208                   11/14/95
5,466,210                   08/216,443                   11/14/95
5,466,211                   08/012,148                   11/14/95
5,466,224                   08/083,728                   11/14/95
5,466,256                   08/150,980                   11/14/95
5,466,261                   07/979,508                   11/14/95
5,466,265                   08/242,760                   11/14/95
5,466,267                   07/946,223                   11/14/95
5,466,270                   08/251,277                   11/14/95
5,466,292                   08/167,804                   11/14/95
5,466,310                   08/107,812                   11/14/95
5,466,313                   08/192,283                   11/14/95
5,466,316                   08/337,967                   11/14/95
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