Notice of Expiration of Patents
                     Due to Failure to Pay Maintenance Fee

   35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required
maintenance fee and any applicable surcharge are not paid in a patent
requiring such payment, the patent will expire at the end of the 4th, 8th
or 12th anniversary of the grant of the patent depending on the first
maintenance fee which was not paid.
   According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.

                  PATENTS WHICH EXPIRED ON September 27, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                        Serial                        Issue
Number                        Number                         Date

4,773,113                   07/109,994                   09/27/88
4,773,124                   07/091,135                   09/27/88
4,773,134                   06/891,056                   09/27/88
4,773,138                   06/517,614                   09/27/88
4,773,140                   06/547,150                   09/27/88
4,773,142                   07/015,430                   09/27/88
4,773,149                   07/095,731                   09/27/88
4,773,150                   07/052,693                   09/27/88
4,773,155                   06/933,523                   09/27/88
4,773,168                   06/945,825                   09/27/88
4,773,169                   07/078,689                   09/27/88
4,773,170                   07/050,556                   09/27/88
4,773,181                   07/002,789                   09/27/88
4,773,185                   07/009,807                   09/27/88
4,773,188                   07/002,359                   09/27/88
4,773,191                   07/005,474                   09/27/88
4,773,193                   06/865,804                   09/27/88
4,773,199                   07/073,982                   09/27/88
4,773,203                   07/059,799                   09/27/88
4,773,211                   07/027,243                   09/27/88
4,773,220                   07/109,747                   09/27/88
4,773,221                   06/396,150                   09/27/88
4,773,222                   06/735,055                   09/27/88
4,773,224                   06/918,971                   09/27/88
4,773,225                   07/075,729                   09/27/88
4,773,228                   07/089,446                   09/27/88
4,773,233                   07/114,842                   09/27/88
4,773,234                   07/086,264                   09/27/88
4,773,236                   07/094,607                   09/27/88
4,773,241                   07/069,240                   09/27/88
4,773,248                   07/077,201                   09/27/88
4,773,250                   07/032,605                   09/27/88
4,773,252                   06/876,244                   09/27/88
4,773,261                   06/928,490                   09/27/88
4,773,265                   06/915,586                   09/27/88
4,773,266                   07/087,283                   09/27/88
4,773,270                   07/017,626                   09/27/88
4,773,272                   06/934,739                   09/27/88
4,773,276                   07/021,690                   09/27/88
4,773,282                   07/034,770                   09/27/88
4,773,298                   06/938,704                   09/27/88
4,773,300                   06/658,334                   09/27/88
4,773,306                   06/883,384                   09/27/88
4,773,314                   07/083,343                   09/27/88
4,773,315                   07/120,490                   09/27/88
4,773,316                   07/015,312                   09/27/88
4,773,340                   06/944,661                   09/27/88
4,773,350                   07/030,981                   09/27/88
4,773,351                   06/902,017                   09/27/88
4,773,357                   06/902,470                   09/27/88
4,773,359                   07/104,907                   09/27/88
4,773,362                   07/062,121                   09/27/88
4,773,363                   07/044,709                   09/27/88
4,773,369                   06/832,806                   09/27/88
4,773,373                   06/927,138                   09/27/88
4,773,376                   07/117,507                   09/27/88
4,773,377                   06/904,622                   09/27/88
4,773,387                   06/931,706                   09/27/88
4,773,397                   07/064,563                   09/27/88
4,773,400                   07/112,467                   09/27/88
4,773,412                   06/900,078                   09/27/88
4,773,419                   07/038,422                   09/27/88
4,773,432                   07/012,143                   09/27/88
4,773,433                   06/364,268                   09/27/88
4,773,434                   06/836,401                   09/27/88
4,773,440                   06/946,081                   09/27/88
4,773,448                   07/019,416                   09/27/88
4,773,451                   07/028,176                   09/27/88
4,773,453                   07/038,007                   09/27/88
4,773,459                   07/057,993                   09/27/88
4,773,464                   07/029,327                   09/27/88
4,773,466                   07/132,099                   09/27/88
4,773,468                   07/047,470                   09/27/88
4,773,476                   06/933,934                   09/27/88
4,773,487                   06/908,543                   09/27/88
4,773,488                   06/638,830                   09/27/88
4,773,496                   06/942,403                   09/27/88
4,773,499                   07/138,166                   09/27/88
4,773,501                   06/652,647                   09/27/88
4,773,509                   07/056,282                   09/27/88
4,773,510                   07/054,989                   09/27/88
4,773,513                   06/944,841                   09/27/88
4,773,516                   07/024,587                   09/27/88
4,773,524                   07/024,040                   09/27/88
4,773,525                   07/047,983                   09/27/88
4,773,526                   07/060,854                   09/27/88
4,773,529                   07/024,692                   09/27/88
4,773,543                   07/035,886                   09/27/88
4,773,548                   07/093,739                   09/27/88
4,773,550                   07/119,862                   09/27/88
4,773,554                   07/131,305                   09/27/88
4,773,556                   06/460,490                   09/27/88
4,773,559                   07/063,036                   09/27/88
4,773,561                   07/055,848                   09/27/88
4,773,565                   06/720,656                   09/27/88
4,773,572                   06/885,280                   09/27/88
4,773,580                   06/913,870                   09/27/88
4,773,586                   07/028,264                   09/27/88
4,773,591                   06/909,956                   09/27/88
4,773,592                   07/001,065                   09/27/88
4,773,603                   07/032,064                   09/27/88
4,773,607                   07/029,649                   09/27/88
4,773,613                   06/928,347                   09/27/88
4,773,591                   06/909,956                   09/27/88
4,773,592                   07/001,065                   09/27/88
4,773,603                   07/032,064                   09/27/88
4,773,607                   07/029,649                   09/27/88
4,773,613                   06/928,347                   09/27/88
4,773,615                   07/053,348                   09/27/88
4,773,625                   07/025,215                   09/27/88
4,773,626                   06/557,515                   09/27/88
4,773,628                   07/093,099                   09/27/88
4,773,640                   07/027,349                   09/27/88
4,773,645                   07/043,438                   09/27/88
4,773,648                   06/765,247                   09/27/88
4,773,649                   07/048,851                   09/27/88
4,773,657                   06/744,795                   09/27/88
4,773,661                   07/136,546                   09/27/88
4,773,669                   06/917,061                   09/27/88
4,773,675                   07/067,954                   09/27/88
4,773,680                   06/646,744                   09/27/88
4,773,686                   07/121,083                   09/27/88
4,773,692                   07/037,883                   09/27/88
4,773,697                   07/040,159                   09/27/88
4,773,699                   07/019,525                   09/27/88
4,773,700                   07/025,630                   09/27/88
4,773,702                   07/063,381                   09/27/88
4,773,707                   07/173,739                   09/27/88
4,773,712                   06/944,111                   09/27/88
4,773,725                   06/946,114                   09/27/88
4,773,733                   07/117,076                   09/27/88
4,773,741                   07/036,893                   09/27/88
4,773,764                   06/911,662                   09/27/88
4,773,778                   06/868,434                   09/27/88
4,773,781                   07/086,184                   09/27/88
4,773,787                   07/110,210                   09/27/88
4,773,803                   06/940,966                   09/27/88
4,773,808                   07/015,715                   09/27/88
4,773,817                   07/089,543                   09/27/88
4,773,818                   07/009,766                   09/27/88
4,773,822                   07/048,051                   09/27/88
4,773,828                   07/069,063                   09/27/88
4,773,846                   07/091,830                   09/27/88
4,773,847                   07/025,546                   09/27/88
4,773,857                   07/057,320                   09/27/88
4,773,859                   06/857,123                   09/27/88
4,773,867                   07/096,301                   09/27/88
4,773,870                   06/937,930                   09/27/88
4,773,873                   06/914,051                   09/27/88
4,773,881                   07/158,091                   09/27/88
4,773,887                   07/107,391                   09/27/88
4,773,889                   06/797,602                   09/27/88
4,773,892                   07/042,224                   09/27/88
4,773,928                   07/080,922                   09/27/88
4,773,930                   06/873,905                   09/27/88
4,773,943                   07/032,164                   09/27/88
4,773,951                   06/816,923                   09/27/88
4,773,956                   06/937,087                   09/27/88
4,773,965                   07/077,839                   09/27/88
4,773,975                   06/924,574                   09/27/88
4,773,985                   06/723,121                   09/27/88
4,773,986                   06/943,174                   09/27/88
4,773,993                   07/022,881                   09/27/88
4,773,996                   07/000,102                   09/27/88
4,773,997                   06/819,242                   09/27/88
4,773,998                   07/026,629                   09/27/88
4,774,000                   06/925,204                   09/27/88
4,774,009                   07/098,477                   09/27/88
4,774,011                   07/050,574                   09/27/88
4,774,014                   07/049,195                   09/27/88
4,774,016                   06/740,293                   09/27/88
4,774,021                   07/032,157                   09/27/88
4,774,026                   07/005,961                   09/27/88
4,774,029                   06/799,246                   09/27/88
4,774,041                   06/704,037                   09/27/88
4,774,045                   06/837,832                   09/27/88
4,774,053                   07/120,702                   09/27/88
4,774,058                   06/780,312                   09/27/88
4,774,062                   07/002,807                   09/27/88
4,774,064                   06/945,859                   09/27/88
4,774,065                   07/019,985                   09/27/88
4,774,067                   07/013,976                   09/27/88
4,774,068                   06/884,601                   09/27/88
4,774,087                   07/083,380                   09/27/88
4,774,090                   06/562,575                   09/27/88
4,774,099                   06/869,157                   09/27/88
4,774,105                   07/140,906                   09/27/88
4,774,112                   06/928,998                   09/27/88
4,774,120                   07/023,690                   09/27/88
4,774,127                   07/061,741                   09/27/88
4,774,128                   06/787,530                   09/27/88
4,774,129                   06/942,037                   09/27/88
4,774,130                   06/814,506                   09/27/88
4,774,136                   07/075,991                   09/27/88
4,774,140                   06/893,714                   09/27/88
4,774,145                   06/926,553                   09/27/88
4,774,146                   07/072,167                   09/27/88
4,774,150                   07/022,082                   09/27/88
4,774,157                   07/051,859                   09/27/88
4,774,160                   07/018,268                   09/27/88
4,774,171                   07/010,640                   09/27/88
4,774,180                   06/833,920                   09/27/88
4,774,181                   07/066,680                   09/27/88
4,774,183                   06/938,372                   09/27/88
4,774,186                   06/795,272                   09/27/88
4,774,200                   06/844,477                   09/27/88
4,774,211                   07/135,551                   09/27/88
4,774,212                   07/136,363                   09/27/88
4,774,217                   06/873,785                   09/27/88
4,774,218                   06/943,085                   09/27/88
4,774,243                   06/813,323                   09/27/88
4,774,244                   07/149,118                   09/27/88
4,774,245                   06/912,776                   09/27/88
4,774,246                   06/906,724                   09/27/88
4,774,256                   07/120,453                   09/27/88
4,774,261                   07/077,694                   09/27/88
4,774,278                   06/911,901                   09/27/88
4,774,293                   06/869,246                   09/27/88
4,774,298                   06/944,469                   09/27/88
4,774,316                   06/897,163                   09/27/88
4,774,318                   07/136,410                   09/27/88
4,774,324                   06/838,195                   09/27/88
4,774,326                   06/917,538                   09/27/88
4,774,327                   06/917,559                   09/27/88
4,774,328                   07/069,259                   09/27/88
4,774,330                   07/033,430                   09/27/88
4,774,341                   06/912,507                   09/27/88
4,774,342                   06/794,331                   09/27/88
4,774,327                   06/917,559                   09/27/88
4,774,328                   07/069,259                   09/27/88
4,774,330                   07/033,430                   09/27/88
4,774,341                   06/912,507                   09/27/88
4,774,342                   06/794,331                   09/27/88
4,774,365                   07/125,516                   09/27/88
4,774,374                   07/061,855                   09/27/88
4,774,375                   07/131,886                   09/27/88
4,774,386                   06/397,481                   09/27/88
4,774,392                   06/723,875                   09/27/88
4,774,400                   06/936,724                   09/27/88
4,774,411                   07/072,839                   09/27/88
4,774,414                   07/086,093                   09/27/88
4,774,415                   07/004,502                   09/27/88
4,774,420                   06/927,894                   09/27/88
4,774,422                   07/044,780                   09/27/88
4,774,423                   07/003,763                   09/27/88
4,774,426                   07/041,105                   09/27/88
4,774,430                   06/938,012                   09/27/88
4,774,447                   07/063,711                   09/27/88
4,774,460                   07/008,253                   09/27/88
4,774,470                   06/846,238                   09/27/88
4,774,474                   06/947,744                   09/27/88
4,774,475                   07/129,499                   09/27/88
4,774,477                   07/028,422                   09/27/88
4,774,481                   06/913,201                   09/27/88
4,774,486                   07/026,370                   09/27/88
4,774,491                   07/050,827                   09/27/88
4,774,502                   07/077,858                   09/27/88
4,774,508                   06/896,331                   09/27/88
4,774,513                   06/928,740                   09/27/88
4,774,515                   06/781,388                   09/27/88
4,774,516                   07/001,942                   09/27/88
4,774,518                   06/733,052                   09/27/88
4,774,521                   06/911,813                   09/27/88
4,774,533                   07/011,502                   09/27/88
4,774,546                   07/009,653                   09/27/88
4,774,548                   07/062,304                   09/27/88
4,774,552                   07/104,655                   09/27/88
4,774,553                   07/122,993                   09/27/88
4,774,559                   06/677,618                   09/27/88
4,774,565                   07/088,801                   09/27/88
4,774,571                   07/051,708                   09/27/88
4,774,572                   06/811,718                   09/27/88
4,774,582                   06/944,463                   09/27/88
4,774,592                   06/914,776                   09/27/88
4,774,593                   06/852,825                   09/27/88
4,774,598                   06/857,235                   09/27/88
4,774,605                   06/941,121                   09/27/88
4,774,606                   06/935,505                   09/27/88
4,774,608                   06/894,543                   09/27/88
4,774,610                   06/938,580                   09/27/88
4,774,616                   06/694,386                   09/27/88
4,774,618                   06/906,904                   09/27/88
4,774,620                   07/098,768                   09/27/88
4,774,621                   06/760,562                   09/27/88
4,774,622                   07/106,869                   09/27/88
4,774,625                   06/792,592                   09/27/88
4,774,644                   06/878,653                   09/27/88
4,774,654                   06/685,527                   09/27/88
4,774,655                   06/664,167                   09/27/88
4,774,656                   06/704,250                   09/27/88
4,774,657                   06/871,637                   09/27/88
4,774,658                   07/014,852                   09/27/88
4,774,659                   06/852,693                   09/27/88
4,774,660                   07/017,383                   09/27/88
4,774,662                   06/842,195                   09/27/88
4,774,664                   06/750,912                   09/27/88
4,774,670                   06/728,079                   09/27/88
4,774,677                   06/911,144                   09/27/88
4,774,687                   06/748,945                   09/27/88
4,774,688                   06/786,997                   09/27/88
4,774,692                   07/122,452                   09/27/88
4,774,700                   06/837,171                   09/27/88

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

5,148,555                   07/661,026                   09/22/92
5,148,563                   07/783,834                   09/22/92
5,148,572                   07/453,983                   09/22/92
5,148,573                   07/754,839                   09/22/92
5,148,575                   07/673,013                   09/22/92
5,148,576                   07/772,704                   09/22/92
5,148,580                   07/723,592                   09/22/92
5,148,581                   07/830,122                   09/22/92
5,148,582                   07/741,913                   09/22/92
5,148,592                   07/623,431                   09/22/92
5,148,596                   07/841,872                   09/22/92
5,148,602                   07/739,616                   09/22/92
5,148,609                   07/680,863                   09/22/92
5,148,612                   07/530,466                   09/22/92
5,148,617                   07/720,640                   09/22/92
5,148,619                   07/798,693                   09/22/92
5,148,621                   07/835,522                   09/22/92
5,148,623                   07/602,168                   09/22/92
5,148,626                   07/554,291                   09/22/92
5,148,627                   07/539,142                   09/22/92
5,148,630                   07/782,087                   09/22/92
5,148,643                   07/545,516                   09/22/92
5,148,654                   07/712,159                   09/22/92
5,148,660                   07/750,093                   09/22/92
5,148,661                   07/745,174                   09/22/92
5,148,662                   07/531,898                   09/22/92
5,148,643                   07/545,516                   09/22/92
5,148,654                   07/712,159                   09/22/92
5,148,660                   07/750,093                   09/22/92
5,148,661                   07/745,174                   09/22/92
5,148,662                   07/531,898                   09/22/92
5,148,701                   07/698,730                   09/22/92
5,148,702                   07/599,099                   09/22/92
5,148,705                   07/542,576                   09/22/92
5,148,710                   07/660,602                   09/22/92
5,148,716                   07/731,064                   09/22/92
5,148,718                   07/746,817                   09/22/92
5,148,730                   07/632,993                   09/22/92
5,148,734                   07/687,357                   09/22/92
5,148,735                   07/732,336                   09/22/92
5,148,737                   07/364,627                   09/22/92
5,148,743                   07/635,116                   09/22/92
5,148,748                   07/667,923                   09/22/92
5,148,750                   07/380,481                   09/22/92
5,148,752                   07/653,094                   09/22/92
5,148,757                   07/773,246                   09/22/92
5,148,758                   07/759,173                   09/22/92
5,148,760                   07/525,489                   09/22/92
5,148,762                   07/612,299                   09/22/92
5,148,764                   07/733,434                   09/22/92
5,148,772                   07/638,095                   09/22/92
5,148,777                   07/826,010                   09/22/92
5,148,779                   07/693,703                   09/22/92
5,148,782                   07/780,114                   09/22/92
5,148,797                   07/669,034                   09/22/92
5,148,801                   07/499,941                   09/22/92
5,148,805                   07/653,360                   09/22/92
5,148,813                   07/616,220                   09/22/92
5,148,814                   07/637,627                   09/22/92
5,148,815                   07/672,827                   09/22/92
5,148,818                   07/363,878                   09/22/92
5,148,820                   07/580,880                   09/22/92
5,148,825                   07/795,137                   09/22/92
5,148,829                   07/782,654                   09/22/92
5,148,835                   07/827,402                   09/22/92
5,148,853                   07/647,332                   09/22/92
5,148,854                   07/625,821                   09/22/92
5,148,857                   07/703,774                   09/22/92
5,148,858                   07/601,739                   09/22/92
5,148,867                   07/716,147                   09/22/92
5,148,873                   07/664,632                   09/22/92
5,148,877                   07/520,718                   09/22/92
5,148,888                   07/540,963                   09/22/92
5,148,890                   07/743,987                   09/22/92
5,148,891                   07/694,769                   09/22/92
5,148,892                   07/762,342                   09/22/92
5,148,895                   07/699,499                   09/22/92
5,148,904                   07/766,382                   09/22/92
5,148,906                   07/780,278                   09/22/92
5,148,908                   07/760,390                   09/22/92
5,148,910                   07/671,494                   09/22/92
5,148,917                   07/825,065                   09/22/92
5,148,919                   07/701,813                   09/22/92
5,148,921                   07/623,814                   09/22/92
5,148,923                   07/656,486                   09/22/92
5,148,926                   07/806,698                   09/22/92
5,148,943                   07/716,084                   09/22/92
5,148,944                   07/414,921                   09/22/92
5,148,952                   07/712,520                   09/22/92
5,148,958                   07/812,270                   09/22/92
5,148,959                   07/652,117                   09/22/92
5,148,961                   07/812,338                   09/22/92
5,148,970                   07/819,464                   09/22/92
5,148,973                   07/818,383                   09/22/92
5,148,977                   07/717,669                   09/22/92
5,148,978                   07/676,834                   09/22/92
5,148,981                   07/354,390                   09/22/92
5,148,982                   07/698,494                   09/22/92
5,148,984                   07/669,075                   09/22/92
5,148,985                   07/784,478                   09/22/92
5,148,988                   07/467,661                   09/22/92
5,148,993                   07/703,382                   09/22/92
5,148,994                   07/624,812                   09/22/92
5,148,995                   07/739,349                   09/22/92
5,148,996                   07/593,897                   09/22/92
5,149,012                   07/757,326                   09/22/92
5,149,013                   07/701,257                   09/22/92
5,149,016                   07/645,784                   09/22/92
5,149,017                   07/792,959                   09/22/92
5,149,039                   07/614,589                   09/22/92
5,149,042                   07/728,703                   09/22/92
5,149,047                   07/754,045                   09/22/92
5,149,057                   07/491,199                   09/22/92
5,149,062                   07/657,668                   09/22/92
5,149,063                   07/691,601                   09/22/92
5,149,064                   07/671,541                   09/22/92
5,149,071                   07/787,263                   09/22/92
5,149,072                   07/451,081                   09/22/92
5,149,073                   07/539,996                   09/22/92
5,149,076                   07/381,737                   09/22/92
5,149,077                   07/719,854                   09/22/92
5,149,081                   07/655,160                   09/22/92
5,149,085                   07/825,401                   09/22/92
5,149,089                   07/673,229                   09/22/92
5,149,090                   07/814,494                   09/22/92
5,149,104                   07/651,314                   09/22/92
5,149,118                   07/594,343                   09/22/92
5,149,121                   07/619,801                   09/22/92
5,149,122                   07/692,183                   09/22/92
5,149,124                   07/608,544                   09/22/92
5,149,127                   07/641,333                   09/22/92
5,149,133                   07/682,357                   09/22/92
5,149,149                   07/821,039                   09/22/92
5,149,151                   07/750,328                   09/22/92
5,149,152                   07/831,874                   09/22/92
5,149,154                   07/826,471                   09/22/92
5,149,157                   07/708,926                   09/22/92
5,149,158                   07/532,572                   09/22/92
5,149,160                   07/694,739                   09/22/92
5,149,162                   07/560,637                   09/22/92
5,149,165                   07/696,103                   09/22/92
5,149,173                   07/766,679                   09/22/92
5,149,177                   07/139,850                   09/22/92
5,149,178                   07/676,483                   09/22/92
5,149,179                   07/690,768                   09/22/92
5,149,190                   07/637,373                   09/22/92
5,149,202                   07/558,221                   09/22/92
5,149,205                   07/720,600                   09/22/92
5,149,208                   07/745,267                   09/22/92
5,149,220                   07/716,432                   09/22/92
5,149,221                   07/802,278                   09/22/92
5,149,223                   07/627,467                   09/22/92
5,149,224                   07/384,788                   09/22/92
5,149,225                   07/668,771                   09/22/92
5,149,229                   07/416,264                   09/22/92
5,149,235                   07/664,879                   09/22/92
5,149,239                   07/734,678                   09/22/92
5,149,247                   07/515,017                   09/22/92
5,149,250                   07/662,073                   09/22/92
5,149,263                   07/710,024                   09/22/92
5,149,275                   07/487,996                   09/22/92
5,149,276                   07/809,352                   09/22/92
5,149,280                   07/773,466                   09/22/92
5,149,293                   07/800,485                   09/22/92
5,149,294                   07/826,216                   09/22/92
5,149,301                   07/749,182                   09/22/92
5,149,308                   07/841,306                   09/22/92
5,149,311                   07/637,622                   09/22/92
5,149,314                   07/530,620                   09/22/92
5,149,322                   07/640,664                   09/22/92
5,149,325                   07/660,491                   09/22/92
5,149,339                   07/667,712                   09/22/92
5,149,351                   07/733,874                   09/22/92
5,149,353                   07/556,435                   09/22/92
5,149,365                   07/640,406                   09/22/92
5,149,371                   07/673,999                   09/22/92
5,149,374                   07/609,554                   09/22/92
5,149,382                   07/749,237                   09/22/92
5,149,387                   07/699,288                   09/22/92
5,149,392                   07/603,788                   09/22/92
5,149,393                   07/426,650                   09/22/92
5,149,399                   07/301,543                   09/22/92
5,149,409                   07/640,182                   09/22/92
5,149,411                   07/814,090                   09/22/92
5,149,414                   06/932,835                   09/22/92
5,149,417                   07/759,263                   09/22/92
5,149,418                   07/754,530                   09/22/92
5,149,420                   07/553,550                   09/22/92
5,149,424                   07/677,307                   09/22/92
5,149,426                   07/734,776                   09/22/92
5,149,427                   07/679,947                   09/22/92
5,149,432                   07/693,491                   09/22/92
5,149,436                   07/782,816                   09/22/92
5,149,445                   07/804,597                   09/22/92
5,149,456                   07/621,483                   09/22/92
5,149,457                   07/374,740                   09/22/92
5,149,476                   07/813,988                   09/22/92
5,149,483                   07/660,871                   09/22/92
5,149,497                   07/713,494                   09/22/92
5,149,499                   07/756,171                   09/22/92
5,149,501                   07/471,416                   09/22/92
5,149,504                   07/773,439                   09/22/92
5,149,508                   07/759,967                   09/22/92
5,149,509                   07/562,548                   09/22/92
5,149,517                   06/820,734                   09/22/92
5,149,521                   07/751,084                   09/22/92
5,149,524                   07/637,085                   09/22/92
5,149,531                   07/544,823                   09/22/92
5,149,534                   07/556,182                   09/22/92
5,149,536                   07/804,118                   09/22/92
5,149,549                   07/616,611                   09/22/92
5,149,550                   07/757,181                   09/22/92
5,149,551                   07/605,975                   09/22/92
5,149,555                   07/481,420                   09/22/92
5,149,557                   07/694,182                   09/22/92
5,149,561                   07/757,641                   09/22/92
5,149,563                   07/711,674                   09/22/92
5,149,564                   07/659,689                   09/22/92
5,149,567                   07/480,559                   09/22/92
5,149,571                   07/596,053                   09/22/92
5,149,572                   07/653,654                   09/22/92
5,149,574                   07/639,096                   09/22/92
5,149,575                   07/599,314                   09/22/92
5,149,579                   07/804,701                   09/22/92
5,149,580                   07/747,029                   09/22/92
5,149,581                   07/612,609                   09/22/92
5,149,598                   07/728,225                   09/22/92
5,149,602                   07/718,124                   09/22/92
5,149,606                   07/667,878                   09/22/92
5,149,608                   07/363,911                   09/22/92
5,149,615                   07/638,802                   09/22/92
5,149,624                   06/916,102                   09/22/92
5,149,629                   07/177,463                   09/22/92
5,149,640                   07/454,944                   09/22/92
5,149,644                   07/633,785                   09/22/92
5,149,648                   07/651,632                   09/22/92
5,149,651                   07/691,880                   09/22/92
5,149,656                   07/518,686                   09/22/92
5,149,670                   07/712,909                   09/22/92
5,149,671                   07/620,734                   09/22/92
5,149,673                   07/762,492                   09/22/92
5,149,675                   07/636,314                   09/22/92
5,149,678                   07/551,487                   09/22/92
5,149,679                   07/517,334                   09/22/92
5,149,685                   07/262,979                   09/22/92
5,149,688                   07/513,983                   09/22/92
5,149,691                   07/669,070                   09/22/92
5,149,702                   07/618,943                   09/22/92
5,149,706                   07/546,851                   09/22/92
5,149,710                   07/597,180                   09/22/92
5,149,711                   07/319,688                   09/22/92
5,149,712                   07/809,129                   09/22/92
5,149,715                   07/308,690                   09/22/92
5,149,725                   07/796,966                   09/22/92
5,149,735                   07/607,321                   09/22/92
5,149,740                   07/494,401                   09/22/92
5,149,746                   07/665,371                   09/22/92
5,149,755                   07/726,437                   09/22/92
5,149,757                   07/517,122                   09/22/92
5,149,761                   07/608,078                   09/22/92
5,149,769                   07/806,694                   09/22/92
5,149,776                   07/614,123                   09/22/92
5,149,777                   07/640,308                   09/22/92
5,149,783                   07/288,894                   09/22/92
5,149,797                   07/480,269                   09/22/92
5,149,803                   07/732,478                   09/22/92
5,149,805                   07/243,605                   09/22/92
5,149,809                   07/798,605                   09/22/92
5,149,811                   07/587,470                   09/22/92
5,149,812                   07/674,653                   09/22/92
5,149,817                   07/655,585                   09/22/92
5,149,818                   07/593,413                   09/22/92
5,149,830                   07/484,429                   09/22/92
5,149,834                   07/665,666                   09/22/92
5,149,835                   07/343,772                   09/22/92
5,149,843                   07/712,043                   09/22/92
5,149,852                   07/676,470                   09/22/92
5,149,856                   07/657,930                   09/22/92
5,149,857                   07/530,898                   09/22/92
5,149,859                   07/582,443                   09/22/92
5,149,864                   07/703,461                   09/22/92
5,149,865                   07/811,257                   09/22/92
5,149,868                   07/671,316                   09/22/92
5,149,870                   07/786,721                   09/22/92
5,149,871                   07/797,789                   09/22/92
5,149,872                   07/655,041                   09/22/92
5,149,875                   07/641,396                   09/22/92
5,149,876                   07/651,727                   09/22/92
5,149,881                   07/702,401                   09/22/92
5,149,885                   07/839,983                   09/22/92
5,149,886                   07/834,897                   09/22/92
5,149,888                   07/486,429                   09/22/92
5,149,893                   07/711,055                   09/22/92
5,149,898                   07/661,991                   09/22/92
5,149,911                   07/654,429                   09/22/92
5,149,916                   07/698,653                   09/22/92
5,149,921                   07/728,241                   09/22/92
5,149,926                   07/606,719                   09/22/92
5,149,928                   07/763,327                   09/22/92
5,149,932                   07/677,182                   09/22/92
5,149,937                   07/553,077                   09/22/92
5,149,940                   07/256,401                   09/22/92
5,149,944                   07/716,086                   09/22/92
5,149,951                   07/488,091                   09/22/92
5,149,952                   07/732,636                   09/22/92
5,149,955                   07/555,594                   09/22/92
5,149,961                   07/693,108                   09/22/92
5,149,966                   07/682,963                   09/22/92
5,149,979                   07/566,420                   09/22/92
5,149,986                   07/626,390                   09/22/92
5,149,995                   07/585,313                   09/22/92
5,150,007                   07/702,443                   09/22/92
5,150,010                   07/669,025                   09/22/92
5,150,021                   07/831,612                   09/22/92
5,150,026                   07/615,668                   09/22/92
5,150,039                   07/607,650                   09/22/92
5,150,040                   07/601,490                   09/22/92
5,150,041                   07/719,313                   09/22/92
5,150,042                   07/763,736                   09/22/92
5,150,064                   07/738,762                   09/22/92
5,150,068                   07/391,782                   09/22/92
5,150,086                   07/732,380                   09/22/92
5,150,095                   07/680,523                   09/22/92
5,150,096                   07/609,639                   09/22/92
5,150,108                   07/789,635                   09/22/92
5,150,111                   07/790,137                   09/22/92
5,150,130                   07/615,455                   09/22/92
5,150,133                   07/540,942                   09/22/92
5,150,161                   07/808,251                   09/22/92
5,150,182                   07/203,726                   09/22/92
5,150,202                   07/597,346                   09/22/92
5,150,203                   07/633,821                   09/22/92
5,150,226                   07/369,226                   09/22/92
5,150,228                   07/797,569                   09/22/92
5,150,230                   07/762,193                   09/22/92
5,150,238                   07/663,124                   09/22/92
5,150,257                   07/736,862                   09/22/92
5,150,272                   07/489,372                   09/22/92
5,150,274                   07/727,042                   09/22/92
5,150,279                   07/671,057                   09/22/92
5,150,284                   07/820,353                   09/22/92
5,150,288                   07/451,304                   09/22/92
5,150,290                   07/397,709                   09/22/92
5,150,299                   07/576,436                   09/22/92
5,150,300                   07/742,525                   09/22/92
5,150,301                   07/545,528                   09/22/92
5,150,302                   07/530,514                   09/22/92
5,150,317                   07/295,858                   09/22/92
5,150,331                   07/674,622                   09/22/92
5,150,332                   07/746,640                   09/22/92
5,150,333                   07/275,706                   09/22/92
5,150,337                   07/482,639                   09/22/92
5,150,339                   07/512,116                   09/22/92
5,150,343                   07/554,337                   09/22/92
5,150,392                   07/756,642                   09/22/92
5,150,393                   07/743,443                   09/22/92
5,150,395                   07/638,255                   09/22/92
5,150,396                   07/734,831                   09/22/92
5,150,398                   07/375,963                   09/22/92
5,150,400                   07/614,520                   09/22/92
5,150,401                   07/621,476                   09/22/92
5,150,413                   07/415,481                   09/22/92
5,150,414                   07/678,580                   09/22/92
5,150,416                   07/563,474                   09/22/92
5,150,422                   07/674,547                   09/22/92
5,150,434                   07/774,155                   09/22/92
5,150,435                   07/744,249                   09/22/92
5,150,437                   07/806,943                   09/22/92
5,150,450                   07/591,318                   09/22/92
5,150,466                   07/593,436                   09/22/92
5,150,470                   07/453,529                   09/22/92
5,150,471                   07/341,081                   09/22/92

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

5,557,802                   08/231,497                   09/24/96
5,557,807                   08/328,372                   09/24/96
5,557,814                   08/436,606                   09/24/96
5,557,815                   08/419,191                   09/24/96
5,557,817                   08/502,488                   09/24/96
5,557,819                   08/492,470                   09/24/96
5,557,823                   08/452,393                   09/24/96
5,557,825                   08/323,744                   09/24/96
5,557,826                   08/545,831                   09/24/96
5,557,827                   08/439,623                   09/24/96
5,557,833                   08/392,144                   09/24/96
5,557,834                   08/360,932                   09/24/96
5,557,840                   08/387,080                   09/24/96
5,557,846                   08/474,959                   09/24/96
5,557,850                   08/365,955                   09/24/96
5,557,853                   08/399,194                   09/24/96
5,557,867                   08/420,731                   09/24/96
5,557,875                   08/347,577                   09/24/96
5,557,876                   08/399,647                   09/24/96
5,557,879                   08/391,056                   09/24/96
5,557,889                   08/375,746                   09/24/96
5,557,892                   08/207,926                   09/24/96
5,557,893                   08/508,235                   09/24/96
5,557,895                   08/313,228                   09/24/96
5,557,898                   08/492,734                   09/24/96
5,557,906                   08/504,206                   09/24/96
5,557,909                   08/343,493                   09/24/96
5,557,911                   08/551,500                   09/24/96
5,557,912                   08/489,963                   09/24/96
5,557,918                   08/414,810                   09/24/96
5,557,919                   08/295,061                   09/24/96
5,557,932                   06/874,207                   09/24/96
5,557,940                   08/549,172                   09/24/96
5,557,942                   08/334,078                   09/24/96
5,557,943                   07/986,525                   09/24/96
5,557,949                   08/334,530                   09/24/96
5,557,952                   08/513,241                   09/24/96
5,557,954                   08/463,715                   09/24/96
5,557,955                   08/360,162                   09/24/96
5,557,957                   08/441,402                   09/24/96
5,557,959                   08/280,089                   09/24/96
5,557,964                   08/547,019                   09/24/96
5,557,969                   08/495,099                   09/24/96
5,557,980                   08/287,086                   09/24/96
5,557,983                   08/077,509                   09/24/96
5,557,987                   08/273,410                   09/24/96
5,557,989                   08/390,140                   09/24/96
5,557,995                   08/383,502                   09/24/96
5,558,000                   08/424,417                   09/24/96
5,558,030                   08/272,814                   09/24/96
5,558,035                   08/500,131                   09/24/96
5,558,041                   08/397,625                   09/24/96
5,558,043                   08/319,074                   09/24/96
5,558,046                   08/295,693                   09/24/96
5,558,052                   08/390,998                   09/24/96
5,558,078                   08/334,148                   09/24/96
5,558,082                   08/369,819                   09/24/96
5,558,102                   08/257,279                   09/24/96
5,558,104                   08/438,084                   09/24/96
5,558,106                   08/515,898                   09/24/96
5,558,113                   08/203,977                   09/24/96
5,558,117                   08/371,125                   09/24/96
5,558,119                   08/432,592                   09/24/96
5,558,131                   08/162,336                   09/24/96
5,558,151                   08/574,173                   09/24/96
5,558,155                   08/285,692                   09/24/96
5,558,156                   08/360,926                   09/24/96
5,558,159                   08/343,864                   09/24/96
5,558,166                   08/430,239                   09/24/96
5,558,172                   08/347,705                   09/24/96
5,558,177                   08/314,622                   09/24/96
5,558,182                   08/428,743                   09/24/96
5,558,189                   08/507,701                   09/24/96
5,558,190                   08/540,018                   09/24/96
5,558,193                   08/283,380                   09/24/96
5,558,198                   08/529,885                   09/24/96
5,558,201                   08/288,245                   09/24/96
5,558,209                   08/397,586                   09/24/96
5,558,210                   08/501,540                   09/24/96
5,558,212                   08/335,930                   09/24/96
5,558,213                   08/490,479                   09/24/96
5,558,219                   08/376,357                   09/24/96
5,558,223                   08/397,272                   09/24/96
5,558,224                   08/436,536                   09/24/96
5,558,225                   08/264,964                   09/24/96
5,558,231                   08/440,974                   09/24/96
5,558,236                   08/210,146                   09/24/96
5,558,237                   08/370,757                   09/24/96
5,558,240                   08/440,218                   09/24/96
5,558,242                   08/580,496                   09/24/96
5,558,243                   08/336,739                   09/24/96
5,558,246                   08/489,588                   09/24/96
5,558,247                   08/292,210                   09/24/96
5,558,250                   08/204,174                   09/24/96
5,558,257                   08/316,845                   09/24/96
5,558,270                   08/369,729                   09/24/96
5,558,272                   08/562,029                   09/24/96
5,558,273                   08/336,985                   09/24/96
5,558,277                   08/545,002                   09/24/96
5,558,278                   08/321,812                   09/24/96
5,558,292                   08/335,513                   09/24/96
5,558,293                   08/425,495                   09/24/96
5,558,294                   08/329,255                   09/24/96
5,558,297                   08/384,951                   09/24/96
5,558,299                   08/229,637                   09/24/96
5,558,306                   08/367,579                   09/24/96
5,558,308                   08/489,126                   09/24/96
5,558,311                   08/352,279                   09/24/96
5,558,312                   08/380,624                   09/24/96
5,558,314                   08/373,567                   09/24/96
5,558,327                   08/409,998                   09/24/96
5,558,328                   08/382,888                   09/24/96
5,558,331                   08/420,285                   09/24/96
5,558,332                   08/236,345                   09/24/96
5,558,334                   08/515,914                   09/24/96
5,558,335                   08/529,329                   09/24/96
5,558,337                   08/529,331                   09/24/96
5,558,338                   08/329,432                   09/24/96
5,558,347                   08/427,881                   09/24/96
5,558,352                   08/396,565                   09/24/96
5,558,353                   08/256,630                   09/24/96
5,558,354                   08/392,133                   09/24/96
5,558,355                   08/213,467                   09/24/96
5,558,356                   08/288,753                   09/24/96
5,558,359                   08/462,187                   09/24/96
5,558,360                   08/174,017                   09/24/96
5,558,361                   08/318,437                   09/24/96
5,558,373                   08/337,736                   09/24/96
5,558,377                   08/438,085                   09/24/96
5,558,378                   08/558,801                   09/24/96
5,558,400                   08/320,906                   09/24/96
5,558,405                   08/308,433                   09/24/96
5,558,408                   08/416,216                   09/24/96
5,558,422                   08/503,281                   09/24/96
5,558,424                   08/378,736                   09/24/96
5,558,425                   08/336,522                   09/24/96
5,558,426                   08/350,404                   09/24/96
5,558,427                   08/249,129                   09/24/96
5,558,434                   08/440,761                   09/24/96
5,558,441                   08/353,823                   09/24/96
5,558,461                   08/295,906                   09/24/96
5,558,462                   08/352,753                   09/24/96
5,558,463                   08/407,763                   09/24/96
5,558,468                   08/276,107                   09/24/96
5,558,469                   08/241,567                   09/24/96
5,558,473                   08/290,572                   09/24/96
5,558,475                   08/129,330                   09/24/96
5,558,507                   08/331,499                   09/24/96
5,558,509                   08/418,596                   09/24/96
5,558,527                   08/354,149                   09/24/96
5,558,536                   08/349,204                   09/24/96
5,558,537                   08/393,672                   09/24/96
5,558,551                   08/528,992                   09/24/96
5,558,552                   08/521,844                   09/24/96
5,558,555                   08/528,477                   09/24/96
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