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

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

                   PATENTS WHICH EXPIRED ON January 24, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

4,799,283                       07/118,183                       01/24/89
4,799,288                       07/131,122                       01/24/89
4,799,294                       07/147,885                       01/24/89
4,799,296                       07/139,579                       01/24/89
4,799,303                       07/089,599                       01/24/89
4,799,307                       06/916,151                       01/24/89
4,799,308                       07/090,005                       01/24/89
4,799,316                       07/139,532                       01/24/89
4,799,318                       07/027,396                       01/24/89
4,799,325                       07/119,021                       01/24/89
4,799,331                       06/923,946                       01/24/89
4,799,336                       07/030,679                       01/24/89
4,799,339                       07/049,656                       01/24/89
4,799,341                       07/100,127                       01/24/89
4,799,343                       07/082,048                       01/24/89
4,799,348                       06/847,408                       01/24/89
4,799,349                       07/012,628                       01/24/89
4,799,353                       07/089,604                       01/24/89
4,799,354                       07/133,484                       01/24/89
4,799,363                       07/168,534                       01/24/89
4,799,364                       06/877,563                       01/24/89
4,799,366                       07/125,570                       01/24/89
4,799,368                       06/902,450                       01/24/89
4,799,369                       07/079,885                       01/24/89
4,799,378                       07/079,684                       01/24/89
4,799,387                       07/127,054                       01/24/89
4,799,400                       07/120,721                       01/24/89
4,799,404                       07/029,606                       01/24/89
4,799,409                       07/139,194                       01/24/89
4,799,417                       07/067,284                       01/24/89
4,799,418                       07/087,704                       01/24/89
4,799,419                       06/549,974                       01/24/89
4,799,420                       07/089,878                       01/24/89
4,799,422                       07/138,554                       01/24/89
4,799,424                       07/102,530                       01/24/89
4,799,437                       07/159,113                       01/24/89
4,799,439                       06/397,079                       01/24/89
4,799,443                       06/942,936                       01/24/89
4,799,447                       07/046,576                       01/24/89
4,799,454                       07/139,748                       01/24/89
4,799,465                       07/024,943                       01/24/89
4,799,470                       07/106,517                       01/24/89
4,799,492                       06/875,440                       01/24/89
4,799,494                       06/921,471                       01/24/89
4,799,496                       07/057,108                       01/24/89
4,799,507                       07/035,927                       01/24/89
4,799,511                       06/308,034                       01/24/89
4,799,519                       07/195,799                       01/24/89
4,799,534                       07/020,390                       01/24/89
4,799,535                       07/147,222                       01/24/89
4,799,536                       07/097,488                       01/24/89
4,799,539                       07/056,607                       01/24/89
4,799,545                       07/140,892                       01/24/89
4,799,546                       07/111,758                       01/24/89
4,799,551                       07/094,014                       01/24/89
4,799,564                       07/007,009                       01/24/89
4,799,571                       07/106,225                       01/24/89
4,799,578                       07/010,466                       01/24/89
4,799,581                       07/122,184                       01/24/89
4,799,586                       06/860,457                       01/24/89
4,799,587                       06/875,224                       01/24/89
4,799,594                       07/112,235                       01/24/89
4,799,595                       06/944,342                       01/24/89
4,799,597                       07/128,616                       01/24/89
4,799,598                       07/206,984                       01/24/89
4,799,616                       07/107,852                       01/24/89
4,799,621                       07/045,699                       01/24/89
4,799,626                       07/107,951                       01/24/89
4,799,632                       07/105,392                       01/24/89
4,799,633                       07/077,963                       01/24/89
4,799,645                       07/145,345                       01/24/89
4,799,658                       07/107,907                       01/24/89
4,799,659                       07/076,226                       01/24/89
4,799,667                       07/159,233                       01/24/89
4,799,671                       06/916,641                       01/24/89
4,799,679                       07/112,505                       01/24/89
4,799,686                       06/943,501                       01/24/89
4,799,697                       06/919,655                       01/24/89
4,799,698                       07/019,280                       01/24/89
4,799,714                       07/102,012                       01/24/89
4,799,725                       07/113,252                       01/24/89
4,799,728                       07/152,950                       01/24/89
4,799,736                       07/136,491                       01/24/89
4,799,743                       07/044,620                       01/24/89
4,799,757                       07/040,926                       01/24/89
4,799,768                       07/043,209                       01/24/89
4,799,781                       07/127,294                       01/24/89
4,799,787                       07/125,267                       01/24/89
4,799,799                       06/943,347                       01/24/89
4,799,800                       06/924,207                       01/24/89
4,799,816                       07/052,235                       01/24/89
4,799,829                       06/920,021                       01/24/89
4,799,834                       06/794,646                       01/24/89
4,799,835                       07/056,408                       01/24/89
4,799,845                       07/050,673                       01/24/89
4,799,856                       07/097,643                       01/24/89
4,799,858                       06/864,512                       01/24/89
4,799,869                       07/178,789                       01/24/89
4,799,871                       07/002,939                       01/24/89
4,799,875                       07/138,836                       01/24/89
4,799,878                       07/120,667                       01/24/89
4,799,889                       07/131,507                       01/24/89
4,799,891                       07/048,170                       01/24/89
4,799,900                       07/176,969                       01/24/89
4,799,901                       07/213,643                       01/24/89
4,799,902                       07/087,134                       01/24/89
4,799,905                       07/062,435                       01/24/89
4,799,915                       07/128,628                       01/24/89
4,799,916                       07/205,740                       01/24/89
4,799,929                       07/096,514                       01/24/89
4,799,942                       07/053,735                       01/24/89
4,799,944                       07/173,087                       01/24/89
4,799,961                       06/897,860                       01/24/89
4,799,984                       07/098,181                       01/24/89
4,799,988                       06/888,795                       01/24/89
4,800,004                       07/181,326                       01/24/89
4,800,010                       07/187,117                       01/24/89
4,800,026                       07/136,586                       01/24/89
4,800,028                       07/069,910                       01/24/89
4,800,031                       06/928,773                       01/24/89
4,800,032                       07/071,003                       01/24/89
4,800,035                       06/781,189                       01/24/89
4,800,036                       06/939,338                       01/24/89
4,800,042                       07/008,082                       01/24/89
4,800,045                       07/053,998                       01/24/89
4,800,046                       07/121,442                       01/24/89
4,800,047                       07/160,360                       01/24/89
4,800,050                       06/932,829                       01/24/89
4,800,058                       07/088,455                       01/24/89
4,800,059                       07/009,386                       01/24/89
4,800,063                       06/694,978                       01/24/89
4,800,064                       07/143,864                       01/24/89
4,800,081                       06/871,120                       01/24/89
4,800,089                       07/167,650                       01/24/89
4,800,094                       06/906,966                       01/24/89
4,800,101                       07/088,374                       01/24/89
4,800,105                       07/074,579                       01/24/89
4,800,106                       07/064,966                       01/24/89
4,800,124                       07/066,381                       01/24/89
4,800,125                       07/088,917                       01/24/89
4,800,126                       07/110,875                       01/24/89
4,800,134                       07/136,842                       01/24/89
4,800,156                       07/069,191                       01/24/89
4,800,162                       07/033,962                       01/24/89
4,800,163                       07/133,722                       01/24/89
4,800,165                       07/001,734                       01/24/89
4,800,180                       06/912,830                       01/24/89
4,800,185                       07/090,645                       01/24/89
4,800,190                       07/095,820                       01/24/89
4,800,199                       06/920,397                       01/24/89
4,800,203                       07/100,700                       01/24/89
4,800,208                       07/085,067                       01/24/89
4,800,213                       07/081,064                       01/24/89
4,800,214                       07/107,029                       01/24/89
4,800,217                       07/146,633                       01/24/89
4,800,224                       07/047,099                       01/24/89
4,800,229                       07/144,701                       01/24/89
4,800,236                       07/067,767                       01/24/89
4,800,246                       07/113,476                       01/24/89
4,800,254                       06/912,428                       01/24/89
4,800,259                       06/906,065                       01/24/89
4,800,266                       07/093,301                       01/24/89
4,800,267                       07/070,175                       01/24/89
4,800,272                       07/021,450                       01/24/89
4,800,282                       07/080,222                       01/24/89
4,800,287                       07/046,980                       01/24/89
4,800,288                       07/072,417                       01/24/89
4,800,292                       07/068,776                       01/24/89
4,800,303                       07/051,983                       01/24/89
4,800,305                       07/192,325                       01/24/89
4,800,307                       07/067,787                       01/24/89
4,800,314                       07/092,851                       01/24/89
4,800,325                       07/003,281                       01/24/89
4,800,331                       07/013,758                       01/24/89
4,800,345                       07/154,640                       01/24/89
4,800,352                       07/105,746                       01/24/89
4,800,353                       06/925,036                       01/24/89
4,800,354                       07/097,572                       01/24/89
4,800,355                       07/193,445                       01/24/89
4,800,368                       07/091,796                       01/24/89
4,800,381                       06/916,680                       01/24/89
4,800,392                       07/001,284                       01/24/89
4,800,395                       07/064,628                       01/24/89
4,800,402                       07/142,059                       01/24/89
4,800,404                       06/910,000                       01/24/89
4,800,418                       06/773,060                       01/24/89
4,800,423                       07/118,579                       01/24/89
4,800,428                       07/048,196                       01/24/89
4,800,430                       06/879,108                       01/24/89
4,800,433                       07/146,178                       01/24/89
4,800,445                       06/833,703                       01/24/89
4,800,447                       06/911,094                       01/24/89
4,800,468                       07/123,761                       01/24/89
4,800,472                       07/114,160                       01/24/89
4,800,477                       07/124,076                       01/24/89
4,800,479                       07/175,098                       01/24/89
4,800,492                       07/049,221                       01/24/89
4,800,502                       07/172,972                       01/24/89
4,800,518                       06/747,213                       01/24/89
4,800,522                       06/862,323                       01/24/89
4,800,535                       07/043,840                       01/24/89
4,800,550                       07/069,126                       01/24/89
4,800,556                       07/046,350                       01/24/89
4,800,557                       06/763,010                       01/24/89
4,800,559                       06/890,457                       01/24/89
4,800,560                       07/025,342                       01/24/89
4,800,563                       06/893,179                       01/24/89
4,800,567                       07/117,149                       01/24/89
4,800,572                       07/091,020                       01/24/89
4,800,586                       07/157,862                       01/24/89
4,800,587                       07/047,464                       01/24/89

                   PATENTS WHICH EXPIRED ON January 19, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,179,738                       07/728,283                       01/19/93
5,179,739                       07/622,192                       01/19/93
5,179,746                       07/763,568                       01/19/93
5,179,751                       07/671,750                       01/19/93
5,179,753                       07/838,998                       01/19/93
5,179,754                       07/826,050                       01/19/93
5,179,759                       07/478,459                       01/19/93
5,179,764                       07/735,806                       01/19/93
5,179,765                       07/818,147                       01/19/93
5,179,766                       07/815,418                       01/19/93
5,179,771                       07/768,628                       01/19/93
5,179,782                       07/829,913                       01/19/93
5,179,785                       07/658,074                       01/19/93
5,179,794                       07/813,446                       01/19/93
5,179,796                       07/683,921                       01/19/93
5,179,801                       07/725,328                       01/19/93
5,179,805                       07/292,392                       01/19/93
5,179,806                       07/647,081                       01/19/93
5,179,812                       07/699,155                       01/19/93
5,179,813                       07/691,190                       01/19/93
5,179,815                       07/656,677                       01/19/93
5,179,823                       07/882,756                       01/19/93
5,179,831                       07/561,093                       01/19/93
5,179,836                       07/670,303                       01/19/93
5,179,843                       07/758,698                       01/19/93
5,179,846                       07/605,338                       01/19/93
5,179,848                       07/899,871                       01/19/93
5,179,850                       07/604,937                       01/19/93
5,179,852                       07/788,498                       01/19/93
5,179,853                       07/658,318                       01/19/93
5,179,857                       07/709,026                       01/19/93
5,179,861                       07/639,268                       01/19/93
5,179,867                       07/628,350                       01/19/93
5,179,870                       07/807,818                       01/19/93
5,179,886                       07/700,444                       01/19/93
5,179,897                       07/597,312                       01/19/93
5,179,906                       07/499,312                       01/19/93
5,179,912                       07/921,243                       01/19/93
5,179,914                       07/784,887                       01/19/93
5,179,917                       07/882,706                       01/19/93
5,179,918                       07/721,400                       01/19/93
5,179,925                       07/827,792                       01/19/93
5,179,928                       07/809,483                       01/19/93
5,179,932                       07/892,795                       01/19/93
5,179,942                       07/808,905                       01/19/93
5,179,943                       07/690,919                       01/19/93
5,179,951                       07/812,565                       01/19/93
5,179,953                       07/750,528                       01/19/93
5,179,971                       07/862,601                       01/19/93
5,179,977                       07/649,662                       01/19/93
5,179,984                       07/706,046                       01/19/93
5,179,991                       07/626,674                       01/19/93
5,179,994                       07/821,229                       01/19/93
5,179,997                       07/758,736                       01/19/93
5,179,998                       07/825,266                       01/19/93
5,180,001                       07/561,828                       01/19/93
5,180,008                       07/810,753                       01/19/93
5,180,018                       07/706,887                       01/19/93
5,180,025                       07/808,216                       01/19/93
5,180,026                       07/758,454                       01/19/93
5,180,027                       07/593,566                       01/19/93
5,180,031                       07/625,904                       01/19/93
5,180,036                       07/752,086                       01/19/93
5,180,037                       07/668,370                       01/19/93
5,180,039                       07/908,830                       01/19/93
5,180,041                       07/797,215                       01/19/93
5,180,058                       07/797,207                       01/19/93
5,180,068                       07/797,181                       01/19/93
5,180,072                       07/557,169                       01/19/93
5,180,073                       07/703,473                       01/19/93
5,180,075                       07/783,548                       01/19/93
5,180,076                       07/663,246                       01/19/93
5,180,079                       07/863,004                       01/19/93
5,180,085                       07/743,924                       01/19/93
5,180,086                       07/716,251                       01/19/93
5,180,088                       07/805,614                       01/19/93
5,180,090                       07/659,900                       01/19/93
5,180,105                       07/661,550                       01/19/93
5,180,108                       07/628,934                       01/19/93
5,180,110                       07/744,299                       01/19/93
5,180,121                       07/696,245                       01/19/93
5,180,122                       07/698,033                       01/19/93
5,180,128                       07/760,900                       01/19/93
5,180,130                       07/618,111                       01/19/93
5,180,133                       07/811,267                       01/19/93
5,180,135                       07/808,222                       01/19/93
5,180,143                       07/646,675                       01/19/93
5,180,158                       07/823,401                       01/19/93
5,180,163                       07/815,556                       01/19/93
5,180,164                       07/783,610                       01/19/93
5,180,169                       07/875,402                       01/19/93
5,180,174                       07/722,006                       01/19/93
5,180,178                       07/458,297                       01/19/93
5,180,179                       07/649,497                       01/19/93
5,180,183                       07/642,423                       01/19/93
5,180,184                       07/828,495                       01/19/93
5,180,188                       07/752,135                       01/19/93
5,180,189                       07/752,354                       01/19/93
5,180,193                       07/810,520                       01/19/93
5,180,196                       07/702,332                       01/19/93
5,180,198                       07/834,084                       01/19/93
5,180,202                       07/783,616                       01/19/93
5,180,204                       07/761,373                       01/19/93
5,180,205                       07/657,711                       01/19/93
5,180,208                       07/650,585                       01/19/93
5,180,209                       07/775,829                       01/19/93
5,180,213                       07/850,021                       01/19/93
5,180,215                       07/671,610                       01/19/93
5,180,222                       07/788,370                       01/19/93
5,180,224                       07/842,474                       01/19/93
5,180,227                       07/756,551                       01/19/93
5,180,237                       07/902,711                       01/19/93
5,180,239                       07/652,067                       01/19/93
5,180,243                       07/334,104                       01/19/93
5,180,248                       07/740,162                       01/19/93
5,180,256                       07/846,262                       01/19/93
5,180,258                       07/767,182                       01/19/93
5,180,259                       07/796,496                       01/19/93
5,180,260                       07/818,769                       01/19/93
5,180,261                       07/789,740                       01/19/93
5,180,277                       07/549,463                       01/19/93
5,180,279                       07/861,222                       01/19/93
5,180,280                       07/624,403                       01/19/93
5,180,283                       07/726,388                       01/19/93
5,180,284                       07/845,112                       01/19/93
5,180,292                       07/751,370                       01/19/93
5,180,295                       07/825,352                       01/19/93
5,180,301                       07/700,361                       01/19/93
5,180,304                       07/804,835                       01/19/93
5,180,306                       07/650,188                       01/19/93
5,180,313                       07/799,703                       01/19/93
5,180,314                       07/756,097                       01/19/93
5,180,315                       07/889,354                       01/19/93
5,180,316                       07/823,027                       01/19/93
5,180,318                       07/721,932                       01/19/93
5,180,322                       07/748,458                       01/19/93
5,180,323                       07/783,887                       01/19/93
5,180,326                       07/821,577                       01/19/93
5,180,327                       07/753,061                       01/19/93
5,180,331                       07/473,393                       01/19/93
5,180,339                       07/748,695                       01/19/93
5,180,340                       07/808,245                       01/19/93
5,180,341                       07/808,246                       01/19/93
5,180,346                       07/733,949                       01/19/93
5,180,352                       07/804,405                       01/19/93
5,180,353                       07/651,807                       01/19/93
5,180,360                       07/685,837                       01/19/93
5,180,366                       07/597,483                       01/19/93
5,180,388                       07/545,398                       01/19/93
5,180,389                       07/798,842                       01/19/93
5,180,392                       07/614,690                       01/19/93
5,180,395                       07/459,791                       01/19/93
5,180,400                       07/707,056                       01/19/93
5,180,402                       07/695,220                       01/19/93
5,180,416                       07/623,658                       01/19/93
5,180,438                       07/709,831                       01/19/93
5,180,440                       07/817,964                       01/19/93
5,180,442                       07/863,947                       01/19/93
5,180,446                       07/826,425                       01/19/93
5,180,456                       07/792,552                       01/19/93
5,180,458                       07/692,159                       01/19/93
5,180,461                       07/561,453                       01/19/93
5,180,472                       07/748,626                       01/19/93
5,180,477                       07/718,367                       01/19/93
5,180,480                       07/819,708                       01/19/93
5,180,500                       07/333,165                       01/19/93
5,180,501                       07/717,983                       01/19/93
5,180,502                       07/701,014                       01/19/93
5,180,509                       07/682,276                       01/19/93
5,180,515                       07/656,117                       01/19/93
5,180,524                       07/650,035                       01/19/93
5,180,528                       07/738,444                       01/19/93
5,180,535                       07/481,597                       01/19/93
5,180,536                       07/731,278                       01/19/93
5,180,549                       07/736,359                       01/19/93
5,180,550                       07/700,807                       01/19/93
5,180,552                       07/565,284                       01/19/93
5,180,554                       07/737,121                       01/19/93
5,180,557                       07/386,199                       01/19/93
5,180,559                       07/775,948                       01/19/93
5,180,563                       07/426,625                       01/19/93
5,180,564                       07/796,254                       01/19/93
5,180,565                       07/491,996                       01/19/93
5,180,566                       07/731,540                       01/19/93
5,180,571                       07/706,695                       01/19/93
5,180,572                       07/795,408                       01/19/93
5,180,573                       07/811,035                       01/19/93
5,180,577                       07/594,502                       01/19/93
5,180,579                       07/768,480                       01/19/93
5,180,586                       07/599,575                       01/19/93
5,180,593                       07/656,251                       01/19/93
5,180,597                       07/641,037                       01/19/93
5,180,598                       07/518,022                       01/19/93
5,180,601                       07/712,196                       01/19/93
5,180,602                       07/747,264                       01/19/93
5,180,608                       07/604,380                       01/19/93
5,180,610                       07/653,950                       01/19/93
5,180,611                       07/687,557                       01/19/93
5,180,614                       07/469,391                       01/19/93
5,180,616                       07/293,177                       01/19/93
5,180,621                       07/888,467                       01/19/93
5,180,635                       07/604,363                       01/19/93
5,180,638                       07/626,017                       01/19/93
5,180,640                       07/590,885                       01/19/93
5,180,641                       07/697,388                       01/19/93
5,180,647                       07/762,782                       01/19/93
5,180,653                       07/693,664                       01/19/93
5,180,658                       07/859,239                       01/19/93
5,180,659                       07/735,183                       01/19/93
5,180,660                       07/668,745                       01/19/93
5,180,663                       07/726,160                       01/19/93
5,180,665                       07/615,711                       01/19/93
5,180,666                       07/721,775                       01/19/93
5,180,676                       07/668,473                       01/19/93
5,180,697                       07/551,306                       01/19/93
5,180,704                       07/688,135                       01/19/93
5,180,706                       07/604,458                       01/19/93
5,180,707                       07/652,528                       01/19/93
5,180,712                       07/393,572                       01/19/93
5,180,723                       07/746,246                       01/19/93
5,180,724                       07/760,174                       01/19/93
5,180,726                       07/777,963                       01/19/93
5,180,732                       07/658,322                       01/19/93
5,180,739                       07/659,649                       01/19/93
5,180,751                       07/886,818                       01/19/93
5,180,752                       07/490,332                       01/19/93
5,180,753                       07/605,750                       01/19/93
5,180,756                       07/505,729                       01/19/93
5,180,764                       07/681,363                       01/19/93
5,180,770                       07/765,507                       01/19/93
5,180,784                       07/869,179                       01/19/93
5,180,790                       07/701,010                       01/19/93
5,180,795                       07/698,945                       01/19/93
5,180,805                       07/730,530                       01/19/93
5,180,808                       07/441,179                       01/19/93
5,180,809                       07/357,354                       01/19/93
5,180,817                       07/670,581                       01/19/93
5,180,818                       07/496,852                       01/19/93
5,180,822                       07/750,467                       01/19/93
5,180,825                       07/791,188                       01/19/93
5,180,827                       07/636,106                       01/19/93
5,180,830                       07/690,760                       01/19/93
5,180,836                       07/786,392                       01/19/93
5,180,838                       07/656,272                       01/19/93
5,180,839                       07/575,515                       01/19/93
5,180,849                       07/725,426                       01/19/93
5,180,860                       07/545,246                       01/19/93
5,180,867                       07/438,148                       01/19/93
5,180,871                       07/839,683                       01/19/93
5,180,875                       07/540,904                       01/19/93
5,180,879                       07/779,833                       01/19/93
5,180,880                       07/486,387                       01/19/93
5,180,882                       07/684,252                       01/19/93
5,180,885                       07/716,576                       01/19/93
5,180,890                       07/665,562                       01/19/93
5,180,891                       07/778,542                       01/19/93
5,180,896                       07/595,472                       01/19/93
5,180,906                       07/562,676                       01/19/93
5,180,908                       07/759,292                       01/19/93
5,180,910                       07/763,156                       01/19/93
5,180,911                       07/753,983                       01/19/93
5,180,924                       07/749,879                       01/19/93
5,180,945                       07/814,814                       01/19/93
5,180,947                       07/689,966                       01/19/93
5,180,948                       07/843,160                       01/19/93
5,180,950                       07/737,394                       01/19/93
5,180,956                       07/647,032                       01/19/93
5,180,957                       07/668,516                       01/19/93
5,180,968                       07/665,607                       01/19/93
5,180,969                       07/830,702                       01/19/93
5,180,975                       07/612,434                       01/19/93
5,180,999                       07/589,744                       01/19/93
5,181,005                       07/780,231                       01/19/93
5,181,008                       07/597,055                       01/19/93
5,181,014                       07/355,866                       01/19/93
5,181,016                       07/641,391                       01/19/93
5,181,018                       07/674,571                       01/19/93
5,181,020                       07/673,550                       01/19/93
5,181,024                       07/668,726                       01/19/93
5,181,026                       07/632,249                       01/19/93
5,181,027                       07/729,112                       01/19/93
5,181,028                       07/540,962                       01/19/93
5,181,040                       07/601,264                       01/19/93
5,181,043                       07/812,872                       01/19/93
5,181,052                       07/650,099                       01/19/93
5,181,059                       07/642,850                       01/19/93
5,181,079                       07/646,600                       01/19/93
5,181,082                       07/514,061                       01/19/93
5,181,106                       07/738,332                       01/19/93
5,181,107                       07/763,301                       01/19/93
5,181,115                       07/718,740                       01/19/93
5,181,129                       07/490,467                       01/19/93
5,181,136                       07/586,132                       01/19/93
5,181,149                       07/408,690                       01/19/93
5,181,155                       07/574,980                       01/19/93
5,181,163                       07/387,598                       01/19/93
5,181,171                       07/585,967                       01/19/93
5,181,194                       07/436,554                       01/19/93
5,181,196                       07/675,617                       01/19/93
5,181,213                       07/734,973                       01/19/93
5,181,233                       07/790,203                       01/19/93
5,181,236                       07/587,878                       01/19/93
5,181,247                       07/557,307                       01/19/93
5,181,251                       07/765,247                       01/19/93

                   PATENTS WHICH EXPIRED ON January 21, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,594,956                       08/429,333                       01/21/97
5,594,957                       08/665,676                       01/21/97
5,594,958                       08/502,478                       01/21/97
5,594,961                       08/276,802                       01/21/97
5,594,965                       08/543,294                       01/21/97
5,594,967                       08/372,179                       01/21/97
5,594,970                       08/381,263                       01/21/97
5,594,971                       08/511,106                       01/21/97
5,594,973                       08/481,485                       01/21/97
5,594,978                       08/459,115                       01/21/97
5,594,982                       08/389,794                       01/21/97
5,594,986                       08/305,063                       01/21/97
5,594,989                       08/416,049                       01/21/97
5,594,994                       08/560,623                       01/21/97
5,594,996                       08/283,256                       01/21/97
5,595,006                       08/614,906                       01/21/97
5,595,008                       08/364,122                       01/21/97
5,595,009                       08/297,166                       01/21/97
5,595,010                       08/477,199                       01/21/97
5,595,014                       08/391,512                       01/21/97
5,595,015                       08/249,747                       01/21/97
5,595,017                       08/447,262                       01/21/97
5,595,020                       08/428,675                       01/21/97
5,595,025                       08/432,954                       01/21/97
5,595,027                       08/341,638                       01/21/97
5,595,030                       08/286,334                       01/21/97
5,595,037                       08/283,902                       01/21/97
5,595,038                       08/408,046                       01/21/97
5,595,039                       08/574,073                       01/21/97
5,595,052                       08/511,572                       01/21/97
5,595,054                       08/302,103                       01/21/97
5,595,058                       08/468,376                       01/21/97
5,595,059                       08/397,610                       01/21/97
5,595,063                       08/282,035                       01/21/97
5,595,067                       08/353,096                       01/21/97
5,595,069                       08/519,415                       01/21/97
5,595,073                       08/555,897                       01/21/97
5,595,074                       08/593,063                       01/21/97
5,595,075                       08/381,345                       01/21/97
5,595,077                       08/435,225                       01/21/97
5,595,078                       08/489,146                       01/21/97
5,595,080                       08/523,645                       01/21/97
5,595,081                       08/492,624                       01/21/97
5,595,082                       08/510,587                       01/21/97
5,595,088                       08/241,350                       01/21/97
5,595,092                       08/410,341                       01/21/97
5,595,100                       08/571,127                       01/21/97
5,595,104                       08/685,324                       01/21/97
5,595,105                       08/522,153                       01/21/97
5,595,106                       08/573,153                       01/21/97
5,595,108                       08/616,123                       01/21/97
5,595,118                       08/543,452                       01/21/97
5,595,123                       08/487,901                       01/21/97
5,595,125                       08/398,675                       01/21/97
5,595,126                       08/513,505                       01/21/97
5,595,128                       08/518,115                       01/21/97
5,595,135                       08/535,075                       01/21/97
5,595,136                       08/554,766                       01/21/97
5,595,143                       08/545,566                       01/21/97
5,595,145                       08/454,915                       01/21/97
5,595,150                       08/444,102                       01/21/97
5,595,152                       08/512,544                       01/21/97
5,595,165                       08/349,076                       01/21/97
5,595,169                       08/362,943                       01/21/97
5,595,172                       08/289,207                       01/21/97
5,595,173                       08/496,672                       01/21/97
5,595,174                       08/202,586                       01/21/97
5,595,175                       08/218,551                       01/21/97
5,595,181                       08/217,243                       01/21/97
5,595,185                       08/289,115                       01/21/97
5,595,187                       08/262,535                       01/21/97
5,595,188                       08/507,570                       01/21/97
5,595,189                       08/484,595                       01/21/97
5,595,191                       08/542,173                       01/21/97
5,595,192                       08/659,392                       01/21/97
5,595,194                       08/511,635                       01/21/97
5,595,195                       08/603,945                       01/21/97
5,595,199                       08/380,130                       01/21/97
5,595,201                       08/349,662                       01/21/97
5,595,204                       08/632,615                       01/21/97
5,595,206                       08/448,153                       01/21/97
5,595,218                       08/401,576                       01/21/97
5,595,226                       08/274,825                       01/21/97
5,595,227                       08/452,595                       01/21/97
5,595,229                       08/496,530                       01/21/97
5,595,230                       08/509,175                       01/21/97
5,595,232                       08/450,195                       01/21/97
5,595,233                       08/369,061                       01/21/97
5,595,238                       08/307,134                       01/21/97
5,595,243                       08/544,409                       01/21/97
5,595,250                       08/591,692                       01/21/97
5,595,252                       08/282,075                       01/21/97
5,595,260                       08/674,425                       01/21/97
5,595,261                       08/364,363                       01/21/97
5,595,262                       08/410,970                       01/21/97
5,595,265                       08/300,790                       01/21/97
5,595,269                       08/389,344                       01/21/97
5,595,271                       08/511,991                       01/21/97
5,595,290                       08/563,722                       01/21/97
5,595,295                       08/529,463                       01/21/97
5,595,299                       08/446,766                       01/21/97
5,595,303                       08/616,160                       01/21/97
5,595,308                       08/306,002                       01/21/97
5,595,323                       08/422,985                       01/21/97
5,595,342                       08/248,241                       01/21/97
5,595,344                       08/397,394                       01/21/97
5,595,350                       08/080,174                       01/21/97
5,595,358                       08/593,019                       01/21/97
5,595,367                       08/365,083                       01/21/97
5,595,369                       08/501,374                       01/21/97
5,595,377                       08/469,901                       01/21/97
5,595,383                       08/361,725                       01/21/97
5,595,392                       08/509,495                       01/21/97
5,595,393                       08/291,033                       01/21/97
5,595,411                       08/521,917                       01/21/97
5,595,414                       08/384,983                       01/21/97
5,595,416                       08/510,666                       01/21/97
5,595,427                       08/387,336                       01/21/97
5,595,428                       08/508,748                       01/21/97
5,595,429                       08/419,828                       01/21/97
5,595,432                       08/396,166                       01/21/97
5,595,436                       08/559,906                       01/21/97
5,595,438                       08/407,994                       01/21/97
5,595,439                       08/318,397                       01/21/97
5,595,441                       08/393,176                       01/21/97
5,595,445                       08/579,438                       01/21/97
5,595,451                       08/485,345                       01/21/97
5,595,455                       08/352,614                       01/21/97
5,595,461                       08/607,620                       01/21/97
5,595,465                       08/411,623                       01/21/97
5,595,469                       08/350,301                       01/21/97
5,595,472                       08/545,117                       01/21/97
5,595,480                       08/331,414                       01/21/97
5,595,486                       08/432,505                       01/21/97
5,595,489                       08/352,765                       01/21/97
5,595,493                       08/298,331                       01/21/97
5,595,494                       08/318,443                       01/21/97
5,595,499                       08/634,074                       01/21/97
5,595,500                       08/310,299                       01/21/97
5,595,505                       08/426,546                       01/21/97
5,595,516                       08/506,524                       01/21/97
5,595,524                       08/393,155                       01/21/97
5,595,528                       08/326,085                       01/21/97
5,595,536                       08/518,142                       01/21/97
5,595,541                       08/339,962                       01/21/97
5,595,543                       08/549,126                       01/21/97
5,595,546                       08/514,912                       01/21/97
5,595,555                       08/647,556                       01/21/97
5,595,557                       08/517,219                       01/21/97
5,595,559                       08/505,866                       01/21/97
5,595,561                       08/521,302                       01/21/97
5,595,562                       08/337,103                       01/21/97
5,595,564                       08/344,692                       01/21/97
5,595,566                       08/569,800                       01/21/97
5,595,598                       08/620,394                       01/21/97
5,595,626                       08/362,469                       01/21/97
5,595,633                       08/332,494                       01/21/97
5,595,635                       08/525,451                       01/21/97
5,595,645                       08/393,011                       01/21/97
5,595,648                       08/367,501                       01/21/97
5,595,650                       08/396,045                       01/21/97
5,595,657                       08/563,870                       01/21/97
5,595,660                       08/494,243                       01/21/97
5,595,669                       08/288,745                       01/21/97
5,595,679                       08/489,743                       01/21/97
5,595,690                       08/570,295                       01/21/97
5,595,691                       08/554,686                       01/21/97
5,595,696                       08/457,380                       01/21/97
5,595,704                       08/133,128                       01/21/97
5,595,705                       08/487,271                       01/21/97
5,595,710                       08/450,189                       01/21/97
5,595,727                       08/447,171                       01/21/97
5,595,729                       08/097,620                       01/21/97
5,595,738                       08/150,036                       01/21/97
5,595,745                       08/484,227                       01/21/97
5,595,747                       08/280,462                       01/21/97
5,595,763                       08/504,020                       01/21/97
5,595,767                       08/313,062                       01/21/97
5,595,771                       08/334,060                       01/21/97
5,595,783                       08/393,215                       01/21/97
5,595,788                       08/474,159                       01/21/97
5,595,794                       08/439,460                       01/21/97
5,595,807                       08/457,126                       01/21/97
5,595,809                       08/443,491                       01/21/97
5,595,811                       08/299,562                       01/21/97
5,595,820                       08/484,650                       01/21/97
5,595,830                       08/232,324                       01/21/97
5,595,839                       08/456,391                       01/21/97
5,595,840                       08/563,193                       01/21/97
5,595,847                       08/361,331                       01/21/97
5,595,879                       08/479,446                       01/21/97
5,595,883                       07/531,613                       01/21/97
5,595,899                       08/364,076                       01/21/97
5,595,933                       08/520,444                       01/21/97
5,595,945                       07/796,974                       01/21/97
5,595,948                       08/491,173                       01/21/97
5,595,949                       08/210,333                       01/21/97
5,595,958                       08/236,831                       01/21/97
5,595,959                       08/344,273                       01/21/97
5,595,969                       08/421,891                       01/21/97
5,595,973                       08/304,724                       01/21/97
5,595,976                       08/521,189                       01/21/97
5,595,983                       08/370,330                       01/21/97
5,595,986                       08/510,342                       01/21/97
5,595,994                       08/469,511                       01/21/97
5,595,999                       08/473,060                       01/21/97
5,596,012                       08/449,152                       01/21/97
5,596,015                       08/347,336                       01/21/97
5,596,017                       08/445,156                       01/21/97
5,596,018                       08/110,322                       01/21/97
5,596,021                       08/306,526                       01/21/97
5,596,022                       08/584,930                       01/21/97
5,596,027                       08/502,330                       01/21/97
5,596,028                       08/418,874                       01/21/97
5,596,029                       08/207,050                       01/21/97
5,596,030                       08/538,671                       01/21/97
5,596,031                       08/316,941                       01/21/97
5,596,037                       08/425,441                       01/21/97
5,596,038                       08/243,230                       01/21/97
5,596,045                       08/548,725                       01/21/97
5,596,058                       08/539,664                       01/21/97
5,596,072                       08/012,543                       01/21/97
5,596,089                       08/196,016                       01/21/97
5,596,094                       08/485,595                       01/21/97
5,596,095                       08/440,547                       01/21/97
5,596,099                       08/405,381                       01/21/97
5,596,104                       08/077,750                       01/21/97
5,596,110                       08/405,354                       01/21/97
5,596,118                       08/564,767                       01/21/97
5,596,129                       08/409,085                       01/21/97
5,596,133                       08/521,387                       01/21/97
5,596,144                       08/511,215                       01/21/97
5,596,149                       08/547,007                       01/21/97
5,596,154                       08/531,765                       01/21/97
5,596,158                       08/454,017                       01/21/97
5,596,165                       08/117,427                       01/21/97
5,596,171                       08/254,977                       01/21/97
5,596,173                       08/365,730                       01/21/97
5,596,174                       08/323,440                       01/21/97
5,596,185                       08/337,171                       01/21/97
5,596,198                       08/231,149                       01/21/97
5,596,220                       08/334,611                       01/21/97
5,596,221                       08/463,799                       01/21/97
5,596,229                       07/392,249                       01/21/97
5,596,246                       08/490,438                       01/21/97
5,596,258                       08/247,429                       01/21/97
5,596,280                       08/491,020                       01/21/97
5,596,301                       08/435,104                       01/21/97
5,596,304                       08/219,769                       01/21/97
5,596,308                       08/289,480                       01/21/97
5,596,309                       08/279,319                       01/21/97
5,596,312                       08/382,490                       01/21/97
5,596,319                       08/332,147                       01/21/97
5,596,325                       08/499,727                       01/21/97
5,596,327                       08/554,620                       01/21/97
5,596,351                       08/164,085                       01/21/97
5,596,371                       08/382,448                       01/21/97
5,596,385                       08/532,450                       01/21/97
5,596,397                       08/573,499                       01/21/97
5,596,462                       08/346,541                       01/21/97
5,596,467                       08/223,092                       01/21/97
5,596,469                       08/599,863                       01/21/97
5,596,470                       08/505,660                       01/21/97
5,596,472                       08/299,688                       01/21/97
5,596,479                       08/504,477                       01/21/97
5,596,481                       08/511,948                       01/21/97
5,596,487                       08/509,147                       01/21/97
5,596,491                       08/563,968                       01/21/97
5,596,492                       08/259,881                       01/21/97
5,596,494                       08/338,423                       01/21/97
5,596,503                       08/439,881                       01/21/97
5,596,544                       08/426,037                       01/21/97
5,596,545                       08/566,887                       01/21/97
5,596,553                       08/561,454                       01/21/97
5,596,563                       08/060,859                       01/21/97
5,596,578                       08/131,997                       01/21/97
5,596,580                       08/460,330                       01/21/97
5,596,604                       08/107,200                       01/21/97
5,596,612                       08/238,496                       01/21/97
5,596,628                       08/635,228                       01/21/97
5,596,636                       08/426,027                       01/21/97
5,596,640                       08/261,267                       01/21/97
5,596,644                       08/330,240                       01/21/97
5,596,649                       08/346,276                       01/21/97
5,596,666                       08/545,099                       01/21/97
5,596,671                       08/232,089                       01/21/97
5,596,713                       08/478,363                       01/21/97
5,596,714                       08/396,116                       01/21/97
5,596,750                       08/071,766                       01/21/97
5,596,751                       08/410,578                       01/21/97
5,596,753                       08/337,105                       01/21/97
5,596,762                       07/612,426                       01/21/97
5,596,766                       08/390,818                       01/21/97