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 August 22, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

4,858,248                       07/152,758                       08/22/89
4,858,267                       07/169,909                       08/22/89
4,858,281                       07/181,394                       08/22/89
4,858,283                       07/227,425                       08/22/89
4,858,287                       07/197,527                       08/22/89
4,858,305                       07/202,892                       08/22/89
4,858,313                       07/205,211                       08/22/89
4,858,315                       07/191,358                       08/22/89
4,858,321                       07/164,015                       08/22/89
4,858,335                       07/116,761                       08/22/89
4,858,337                       07/114,604                       08/22/89
4,858,342                       07/199,470                       08/22/89
4,858,345                       07/261,960                       08/22/89
4,858,346                       07/089,775                       08/22/89
4,858,347                       07/185,983                       08/22/89
4,858,354                       07/023,483                       08/22/89
4,858,356                       07/218,499                       08/22/89
4,858,367                       07/163,303                       08/22/89
4,858,371                       07/234,576                       08/22/89
4,858,375                       07/332,536                       08/22/89
4,858,378                       07/151,014                       08/22/89
4,858,381                       07/145,214                       08/22/89
4,858,383                       07/217,334                       08/22/89
4,858,384                       07/194,428                       08/22/89
4,858,389                       07/069,827                       08/22/89
4,858,392                       07/183,913                       08/22/89
4,858,396                       07/207,470                       08/22/89
4,858,403                       07/200,708                       08/22/89
4,858,414                       07/137,064                       08/22/89
4,858,434                       06/619,632                       08/22/89
4,858,443                       07/178,372                       08/22/89
4,858,461                       07/102,441                       08/22/89
4,858,470                       07/172,139                       08/22/89
4,858,474                       07/141,179                       08/22/89
4,858,475                       07/054,021                       08/22/89
4,858,485                       07/226,870                       08/22/89
4,858,492                       07/197,643                       08/22/89
4,858,494                       07/189,336                       08/22/89
4,858,522                       07/260,062                       08/22/89
4,858,526                       07/166,019                       08/22/89
4,858,531                       07/081,246                       08/22/89
4,858,544                       07/328,806                       08/22/89
4,858,546                       07/256,334                       08/22/89
4,858,560                       07/137,809                       08/22/89
4,858,578                       06/631,067                       08/22/89
4,858,580                       07/198,745                       08/22/89
4,858,590                       07/166,541                       08/22/89
4,858,595                       07/254,109                       08/22/89
4,858,598                       07/099,541                       08/22/89
4,858,599                       07/206,602                       08/22/89
4,858,600                       07/113,305                       08/22/89
4,858,605                       07/170,709                       08/22/89
4,858,606                       07/104,888                       08/22/89
4,858,607                       07/108,950                       08/22/89
4,858,615                       07/227,435                       08/22/89
4,858,619                       07/067,984                       08/22/89
4,858,620                       07/096,667                       08/22/89
4,858,624                       07/159,846                       08/22/89
4,858,626                       07/134,238                       08/22/89
4,858,642                       07/147,790                       08/22/89
4,858,647                       07/037,813                       08/22/89
4,858,671                       07/183,622                       08/22/89
4,858,674                       07/083,941                       08/22/89
4,858,678                       07/201,774                       08/22/89
4,858,679                       07/302,404                       08/22/89
4,858,682                       07/120,536                       08/22/89
4,858,688                       07/211,567                       08/22/89
4,858,689                       07/179,663                       08/22/89
4,858,692                       07/168,983                       08/22/89
4,858,697                       07/164,449                       08/22/89
4,858,698                       07/207,137                       08/22/89
4,858,709                       07/257,814                       08/22/89
4,858,710                       07/237,484                       08/22/89
4,858,712                       07/237,041                       08/22/89
4,858,718                       07/038,327                       08/22/89
4,858,720                       07/120,437                       08/22/89
4,858,726                       07/237,923                       08/22/89
4,858,733                       07/138,114                       08/22/89
4,858,738                       06/704,132                       08/22/89
4,858,739                       07/225,363                       08/22/89
4,858,745                       07/212,896                       08/22/89
4,858,758                       07/284,783                       08/22/89
4,858,762                       07/312,550                       08/22/89
4,858,768                       06/892,983                       08/22/89
4,858,770                       07/054,770                       08/22/89
4,858,774                       07/174,853                       08/22/89
4,858,781                       07/231,513                       08/22/89
4,858,785                       07/164,454                       08/22/89
4,858,798                       07/161,824                       08/22/89
4,858,800                       07/169,155                       08/22/89
4,858,804                       07/141,295                       08/22/89
4,858,818                       07/228,132                       08/22/89
4,858,824                       07/053,351                       08/22/89
4,858,829                       06/582,763                       08/22/89
4,858,840                       07/179,224                       08/22/89
4,858,850                       07/071,631                       08/22/89
4,858,876                       07/187,439                       08/22/89
4,858,891                       07/251,914                       08/22/89
4,858,899                       06/923,483                       08/22/89
4,858,910                       07/146,966                       08/22/89
4,858,915                       06/882,165                       08/22/89
4,858,918                       06/843,558                       08/22/89
4,858,920                       07/231,265                       08/22/89
4,858,921                       07/230,728                       08/22/89
4,858,929                       07/197,662                       08/22/89
4,858,936                       07/154,426                       08/22/89
4,858,944                       07/245,273                       08/22/89
4,858,949                       07/123,582                       08/22/89
4,858,951                       07/190,479                       08/22/89
4,858,954                       07/208,536                       08/22/89
4,858,955                       07/185,142                       08/22/89
4,858,956                       07/247,999                       08/22/89
4,858,967                       07/180,546                       08/22/89
4,858,975                       07/258,512                       08/22/89
4,858,976                       07/187,221                       08/22/89
4,858,978                       07/154,636                       08/22/89
4,858,980                       07/235,255                       08/22/89
4,858,983                       07/177,055                       08/22/89
4,858,988                       07/183,696                       08/22/89
4,858,991                       07/129,373                       08/22/89
4,858,992                       07/156,328                       08/22/89
4,858,994                       07/201,892                       08/22/89
4,859,009                       07/211,565                       08/22/89
4,859,039                       06/797,024                       08/22/89
4,859,044                       07/149,587                       08/22/89
4,859,045                       07/126,124                       08/22/89
4,859,047                       07/170,167                       08/22/89
4,859,052                       07/268,629                       08/22/89
4,859,069                       07/193,007                       08/22/89
4,859,077                       07/087,254                       08/22/89
4,859,080                       07/223,448                       08/22/89
4,859,090                       07/236,474                       08/22/89
4,859,094                       07/128,380                       08/22/89
4,859,107                       07/127,870                       08/22/89
4,859,113                       07/220,156                       08/22/89
4,859,114                       07/173,171                       08/22/89
4,859,122                       07/205,048                       08/22/89
4,859,123                       07/107,431                       08/22/89
4,859,124                       07/220,126                       08/22/89
4,859,129                       07/134,378                       08/22/89
4,859,139                       07/162,387                       08/22/89
4,859,140                       06/874,801                       08/22/89
4,859,141                       07/092,666                       08/22/89
4,859,142                       07/150,866                       08/22/89
4,859,146                       07/177,599                       08/22/89
4,859,151                       07/145,385                       08/22/89
4,859,155                       07/112,536                       08/22/89
4,859,158                       07/121,663                       08/22/89
4,859,164                       07/125,324                       08/22/89
4,859,165                       07/290,459                       08/22/89
4,859,167                       07/190,133                       08/22/89
4,859,172                       07/196,171                       08/22/89
4,859,177                       07/293,546                       08/22/89
4,859,182                       07/118,170                       08/22/89
4,859,184                       07/098,808                       08/22/89
4,859,198                       07/236,486                       08/22/89
4,859,202                       07/187,132                       08/22/89
4,859,206                       07/160,964                       08/22/89
4,859,218                       07/062,469                       08/22/89
4,859,226                       07/231,340                       08/22/89
4,859,227                       07/303,780                       08/22/89
4,859,234                       07/095,788                       08/22/89
4,859,237                       07/140,701                       08/22/89
4,859,239                       07/287,183                       08/22/89
4,859,240                       07/058,831                       08/22/89
4,859,244                       07/216,152                       08/22/89
4,859,257                       07/253,898                       08/22/89
4,859,260                       07/119,646                       08/22/89
4,859,261                       07/192,660                       08/22/89
4,859,269                       07/237,755                       08/22/89
4,859,275                       07/181,671                       08/22/89
4,859,288                       07/273,113                       08/22/89
4,859,314                       07/056,762                       08/22/89
4,859,315                       07/116,886                       08/22/89
4,859,317                       07/151,011                       08/22/89
4,859,329                       07/144,412                       08/22/89
4,859,339                       07/154,777                       08/22/89
4,859,340                       07/186,695                       08/22/89
4,859,341                       06/939,092                       08/22/89
4,859,342                       07/217,878                       08/22/89
4,859,345                       07/236,734                       08/22/89
4,859,346                       07/208,308                       08/22/89
4,859,347                       07/273,407                       08/22/89
4,859,348                       07/218,473                       08/22/89
4,859,364                       07/199,843                       08/22/89
4,859,367                       07/104,190                       08/22/89
4,859,370                       07/088,802                       08/22/89
4,859,371                       07/043,868                       08/22/89
4,859,373                       07/148,867                       08/22/89
4,859,376                       07/067,803                       08/22/89
4,859,381                       07/105,428                       08/22/89
4,859,382                       07/105,427                       08/22/89
4,859,395                       06/889,213                       08/22/89
4,859,401                       06/896,256                       08/22/89
4,859,406                       07/128,103                       08/22/89
4,859,407                       07/151,903                       08/22/89
4,859,414                       07/183,222                       08/22/89
4,859,421                       07/065,424                       08/22/89
4,859,424                       07/115,737                       08/22/89
4,859,425                       07/054,743                       08/22/89
4,859,440                       07/233,039                       08/22/89
4,859,446                       06/943,443                       08/22/89
4,859,467                       06/911,608                       08/22/89
4,859,474                       07/101,564                       08/22/89
4,859,482                       07/248,264                       08/22/89
4,859,496                       07/091,971                       08/22/89
4,859,499                       06/821,365                       08/22/89
4,859,505                       07/032,248                       08/22/89
4,859,506                       07/212,875                       08/22/89
4,859,513                       07/191,337                       08/22/89
4,859,514                       07/062,532                       08/22/89
4,859,536                       07/143,481                       08/22/89
4,859,537                       07/226,316                       08/22/89
4,859,538                       06/933,034                       08/22/89
4,859,541                       07/020,528                       08/22/89
4,859,545                       07/190,431                       08/22/89
4,859,557                       07/160,254                       08/22/89
4,859,563                       07/023,689                       08/22/89
4,859,565                       07/186,757                       08/22/89
4,859,566                       07/228,180                       08/22/89
4,859,570                       07/275,956                       08/22/89
4,859,574                       07/169,249                       08/22/89
4,859,575                       07/236,321                       08/22/89
4,859,582                       06/701,324                       08/22/89
4,859,588                       07/190,624                       08/22/89
4,859,599                       06/877,581                       08/22/89
4,859,602                       06/774,140                       08/22/89
4,859,610                       06/906,663                       08/22/89
4,859,613                       06/929,937                       08/22/89
4,859,614                       07/126,514                       08/22/89
4,859,615                       07/120,694                       08/22/89
4,859,640                       06/896,157                       08/22/89
4,859,656                       06/908,019                       08/22/89
4,859,657                       07/068,692                       08/22/89
4,859,659                       07/012,910                       08/22/89
4,859,662                       07/281,031                       08/22/89
4,859,669                       07/137,300                       08/22/89
4,859,675                       07/207,375                       08/22/89
4,859,677                       07/039,511                       08/22/89
4,859,679                       07/221,167                       08/22/89
4,859,688                       07/031,746                       08/22/89
4,859,690                       06/934,212                       08/22/89
4,859,691                       07/071,124                       08/22/89
4,859,694                       07/154,787                       08/22/89
4,859,714                       07/287,129                       08/22/89
4,859,717                       07/093,274                       08/22/89
4,859,718                       07/175,868                       08/22/89
4,859,724                       07/198,269                       08/22/89
4,859,743                       07/209,716                       08/22/89
4,859,744                       07/164,806                       08/22/89
4,859,747                       07/198,154                       08/22/89
4,859,750                       06/898,514                       08/22/89
4,859,760                       07/129,514                       08/22/89
4,859,783                       07/106,303                       08/22/89
4,859,788                       07/178,476                       08/22/89
4,859,792                       07/168,564                       08/22/89
4,859,794                       07/128,167                       08/22/89
4,859,796                       06/935,352                       08/22/89
4,859,800                       07/045,197                       08/22/89
4,859,802                       07/163,929                       08/22/89
4,859,804                       07/196,403                       08/22/89
4,859,813                       07/093,483                       08/22/89
4,859,820                       07/175,974                       08/22/89
4,859,823                       07/245,918                       08/22/89
4,859,834                       07/207,188                       08/22/89
4,859,835                       07/159,675                       08/22/89
4,859,851                       06/512,440                       08/22/89
4,859,854                       07/197,496                       08/22/89
4,859,855                       06/931,539                       08/22/89
4,859,861                       07/194,614                       08/22/89
4,859,863                       07/142,800                       08/22/89
4,859,864                       07/046,957                       08/22/89
4,859,880                       07/207,481                       08/22/89
4,859,883                       07/130,367                       08/22/89
4,859,884                       07/216,538                       08/22/89
4,859,887                       07/082,920                       08/22/89
4,859,907                       07/028,536                       08/22/89
4,859,915                       07/191,300                       08/22/89
4,859,916                       07/200,106                       08/22/89
4,859,922                       07/015,290                       08/22/89
4,859,930                       07/193,376                       08/22/89
4,859,933                       07/211,517                       08/22/89
4,859,935                       07/263,147                       08/22/89
4,859,944                       07/089,148                       08/22/89
4,859,949                       07/148,713                       08/22/89
4,859,950                       07/194,975                       08/22/89
4,859,954                       07/256,171                       08/22/89
4,859,965                       07/316,358                       08/22/89
4,859,969                       06/509,269                       08/22/89
4,859,973                       07/327,931                       08/22/89
4,859,975                       07/139,251                       08/22/89
4,859,976                       07/326,715                       08/22/89
4,859,977                       07/262,986                       08/22/89
4,859,980                       07/205,965                       08/22/89
4,859,983                       07/208,865                       08/22/89
4,859,989                       07/126,670                       08/22/89
4,859,997                       07/132,563                       08/22/89
4,859,999                       06/887,652                       08/22/89
4,860,000                       07/270,457                       08/22/89
4,860,006                       07/274,655                       08/22/89
4,860,010                       07/066,960                       08/22/89
4,860,013                       07/176,958                       08/22/89
4,860,020                       07/044,381                       08/22/89
4,860,044                       06/910,391                       08/22/89
4,860,054                       07/161,094                       08/22/89
4,860,058                       07/149,815                       08/22/89
4,860,084                       07/293,570                       08/22/89
4,860,096                       07/222,401                       08/22/89
4,860,102                       07/192,851                       08/22/89
4,860,104                       07/209,929                       08/22/89
4,860,112                       07/125,525                       08/22/89
4,860,114                       07/122,697                       08/22/89
4,860,117                       07/150,297                       08/22/89
4,860,121                       07/169,669                       08/22/89
4,860,126                       07/130,280                       08/22/89
4,860,140                       07/183,338                       08/22/89
4,860,150                       07/183,227                       08/22/89
4,860,151                       07/247,007                       08/22/89
4,860,161                       07/187,663                       08/22/89
4,860,172                       07/145,460                       08/22/89
4,860,178                       07/167,492                       08/22/89
4,860,179                       07/195,235                       08/22/89
4,860,190                       06/902,674                       08/22/89
4,860,203                       06/908,436                       08/22/89
4,860,220                       07/030,046                       08/22/89
4,860,221                       06/897,305                       08/22/89
4,860,223                       07/100,791                       08/22/89
4,860,224                       06/866,062                       08/22/89
4,860,230                       07/099,706                       08/22/89
4,860,232                       07/041,773                       08/22/89
4,860,236                       07/112,118                       08/22/89
4,860,238                       07/007,710                       08/22/89
4,860,239                       07/084,521                       08/22/89
4,860,250                       07/056,133                       08/22/89
4,860,282                       07/289,436                       08/22/89
4,860,289                       07/110,354                       08/22/89
4,860,299                       07/195,069                       08/22/89
4,860,304                       07/151,396                       08/22/89
4,860,307                       07/106,420                       08/22/89
4,860,310                       07/164,620                       08/22/89
4,860,314                       07/084,658                       08/22/89
4,860,319                       07/078,045                       08/22/89
4,860,320                       07/287,052                       08/22/89
4,860,323                       07/213,074                       08/22/89
4,860,332                       07/221,062                       08/22/89
4,860,333                       07/024,749                       08/22/89
4,860,337                       07/213,866                       08/22/89
4,860,340                       07/030,502                       08/22/89
4,860,341                       07/310,499                       08/22/89
4,860,343                       07/190,361                       08/22/89
4,860,344                       07/195,412                       08/22/89
4,860,351                       06/927,298                       08/22/89
4,860,358                       07/134,491                       08/22/89
4,860,369                       07/036,340                       08/22/89
4,860,375                       06/837,770                       08/22/89
4,860,376                       07/164,347                       08/22/89

                   PATENTS WHICH EXPIRED ON August 17, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,235,709                       07/718,011                       08/17/93
5,235,710                       07/690,163                       08/17/93
5,235,711                       07/884,468                       08/17/93
5,235,719                       07/922,864                       08/17/93
5,235,720                       07/792,601                       08/17/93
5,235,724                       07/756,535                       08/17/93
5,235,731                       07/858,023                       08/17/93
5,235,739                       07/827,059                       08/17/93
5,235,740                       07/673,906                       08/17/93
5,235,746                       07/853,568                       08/17/93
5,235,754                       07/964,749                       08/17/93
5,235,758                       07/944,535                       08/17/93
5,235,762                       07/839,598                       08/17/93
5,235,764                       07/847,162                       08/17/93
5,235,773                       07/986,353                       08/17/93
5,235,774                       07/891,786                       08/17/93
5,235,781                       07/628,105                       08/17/93
5,235,782                       07/799,395                       08/17/93
5,235,787                       07/911,459                       08/17/93
5,235,791                       07/875,687                       08/17/93
5,235,792                       07/960,501                       08/17/93
5,235,796                       07/856,083                       08/17/93
5,235,799                       07/853,264                       08/17/93
5,235,807                       07/903,474                       08/17/93
5,235,808                       07/865,529                       08/17/93
5,235,813                       07/632,861                       08/17/93
5,235,814                       07/989,727                       08/17/93
5,235,818                       07/961,350                       08/17/93
5,235,820                       07/794,022                       08/17/93
5,235,837                       07/984,595                       08/17/93
5,235,839                       07/921,166                       08/17/93
5,235,842                       07/928,398                       08/17/93
5,235,849                       07/772,480                       08/17/93
5,235,853                       07/888,961                       08/17/93
5,235,859                       07/730,673                       08/17/93
5,235,860                       07/811,456                       08/17/93
5,235,865                       07/926,401                       08/17/93
5,235,870                       07/822,801                       08/17/93
5,235,873                       07/755,517                       08/17/93
5,235,879                       07/803,413                       08/17/93
5,235,881                       07/873,120                       08/17/93
5,235,890                       07/920,072                       08/17/93
5,235,896                       07/853,245                       08/17/93
5,235,902                       07/870,315                       08/17/93
5,235,906                       07/992,729                       08/17/93
5,235,908                       07/995,360                       08/17/93
5,235,920                       07/773,701                       08/17/93
5,235,923                       07/868,809                       08/17/93
5,235,926                       07/894,109                       08/17/93
5,235,929                       07/921,918                       08/17/93
5,235,931                       07/916,758                       08/17/93
5,235,934                       07/569,430                       08/17/93
5,235,935                       07/902,080                       08/17/93
5,235,937                       07/886,002                       08/17/93
5,235,938                       07/889,266                       08/17/93
5,235,943                       07/898,028                       08/17/93
5,235,945                       07/811,538                       08/17/93
5,235,948                       07/916,702                       08/17/93
5,235,950                       07/741,532                       08/17/93
5,235,951                       07/958,744                       08/17/93
5,235,954                       07/911,117                       08/17/93
5,235,963                       07/926,938                       08/17/93
5,235,964                       07/803,158                       08/17/93
5,235,966                       07/779,361                       08/17/93
5,235,968                       07/827,453                       08/17/93
5,235,975                       07/819,907                       08/17/93
5,235,983                       07/846,336                       08/17/93
5,235,992                       07/800,680                       08/17/93
5,236,000                       07/956,946                       08/17/93
5,236,010                       07/886,373                       08/17/93
5,236,012                       08/001,158                       08/17/93
5,236,018                       07/935,135                       08/17/93
5,236,019                       07/910,713                       08/17/93
5,236,021                       07/812,464                       08/17/93
5,236,034                       07/851,642                       08/17/93
5,236,042                       07/837,928                       08/17/93
5,236,043                       07/933,691                       08/17/93
5,236,046                       07/642,937                       08/17/93
5,236,055                       07/728,713                       08/17/93
5,236,060                       07/872,290                       08/17/93
5,236,061                       07/689,269                       08/17/93
5,236,063                       07/843,000                       08/17/93
5,236,065                       07/870,046                       08/17/93
5,236,069                       07/907,641                       08/17/93
5,236,071                       07/559,343                       08/17/93
5,236,074                       07/852,190                       08/17/93
5,236,081                       07/830,325                       08/17/93
5,236,090                       07/931,905                       08/17/93
5,236,092                       07/908,577                       08/17/93
5,236,093                       07/975,771                       08/17/93
5,236,102                       07/812,116                       08/17/93
5,236,106                       07/859,081                       08/17/93
5,236,107                       07/947,838                       08/17/93
5,236,119                       07/971,561                       08/17/93
5,236,120                       07/848,956                       08/17/93
5,236,124                       07/838,296                       08/17/93
5,236,128                       07/511,771                       08/17/93
5,236,133                       07/982,513                       08/17/93
5,236,139                       07/926,515                       08/17/93
5,236,145                       07/834,873                       08/17/93
5,236,146                       07/868,651                       08/17/93
5,236,150                       07/798,529                       08/17/93
5,236,156                       07/859,821                       08/17/93
5,236,168                       07/830,178                       08/17/93
5,236,177                       07/850,425                       08/17/93
5,236,179                       07/944,111                       08/17/93
5,236,182                       07/798,080                       08/17/93
5,236,186                       07/979,748                       08/17/93
5,236,193                       07/982,568                       08/17/93
5,236,206                       07/956,048                       08/17/93
5,236,209                       07/805,293                       08/17/93
5,236,217                       07/592,273                       08/17/93
5,236,219                       07/819,328                       08/17/93
5,236,222                       07/899,760                       08/17/93
5,236,231                       07/713,551                       08/17/93
5,236,237                       07/871,001                       08/17/93
5,236,238                       07/760,511                       08/17/93
5,236,241                       07/902,583                       08/17/93
5,236,242                       07/935,790                       08/17/93
5,236,252                       07/809,463                       08/17/93
5,236,255                       07/777,610                       08/17/93
5,236,263                       07/957,878                       08/17/93
5,236,272                       07/708,428                       08/17/93
5,236,277                       07/900,658                       08/17/93
5,236,278                       07/880,181                       08/17/93
5,236,284                       07/838,797                       08/17/93
5,236,288                       07/985,962                       08/17/93
5,236,291                       07/937,016                       08/17/93
5,236,292                       07/721,241                       08/17/93
5,236,296                       07/823,176                       08/17/93
5,236,305                       07/890,370                       08/17/93
5,236,308                       07/900,921                       08/17/93
5,236,317                       07/765,670                       08/17/93
5,236,327                       07/869,735                       08/17/93
5,236,331                       07/857,160                       08/17/93
5,236,334                       07/807,498                       08/17/93
5,236,336                       07/802,568                       08/17/93
5,236,346                       07/768,315                       08/17/93
5,236,348                       07/957,313                       08/17/93
5,236,354                       07/672,067                       08/17/93
5,236,360                       07/917,285                       08/17/93
5,236,366                       07/889,034                       08/17/93
5,236,369                       07/924,196                       08/17/93
5,236,375                       07/929,036                       08/17/93
5,236,379                       07/787,381                       08/17/93
5,236,386                       07/892,968                       08/17/93
5,236,389                       07/878,870                       08/17/93
5,236,392                       07/846,789                       08/17/93
5,236,396                       07/916,178                       08/17/93
5,236,397                       07/695,347                       08/17/93
5,236,403                       07/930,724                       08/17/93
5,236,405                       07/939,658                       08/17/93
5,236,408                       07/917,574                       08/17/93
5,236,410                       07/667,282                       08/17/93
5,236,415                       07/843,535                       08/17/93
5,236,432                       07/934,713                       08/17/93
5,236,452                       07/795,550                       08/17/93
5,236,458                       07/933,897                       08/17/93
5,236,461                       07/673,790                       08/17/93
5,236,462                       07/689,500                       08/17/93
5,236,465                       07/740,423                       08/17/93
5,236,468                       07/854,126                       08/17/93
5,236,471                       07/899,719                       08/17/93
5,236,473                       07/973,884                       08/17/93
5,236,474                       07/942,679                       08/17/93
5,236,484                       07/793,358                       08/17/93
5,236,485                       07/871,563                       08/17/93
5,236,490                       07/838,884                       08/17/93
5,236,491                       07/967,811                       08/17/93
5,236,492                       07/921,534                       08/17/93
5,236,497                       07/917,910                       08/17/93
5,236,501                       07/404,234                       08/17/93
5,236,502                       07/701,212                       08/17/93
5,236,506                       07/906,264                       08/17/93
5,236,509                       07/832,019                       08/17/93
5,236,510                       07/829,604                       08/17/93
5,236,514                       07/785,145                       08/17/93
5,236,530                       07/875,406                       08/17/93
5,236,533                       07/777,722                       08/17/93
5,236,536                       07/964,840                       08/17/93
5,236,540                       07/870,825                       08/17/93
5,236,545                       07/956,391                       08/17/93
5,236,548                       07/823,289                       08/17/93
5,236,549                       07/757,364                       08/17/93
5,236,551                       07/972,665                       08/17/93
5,236,557                       07/810,720                       08/17/93
5,236,559                       08/008,356                       08/17/93
5,236,573                       07/504,189                       08/17/93
5,236,580                       07/871,953                       08/17/93
5,236,582                       07/805,313                       08/17/93
5,236,589                       07/779,857                       08/17/93
5,236,593                       07/982,266                       08/17/93
5,236,595                       07/908,297                       08/17/93
5,236,603                       07/717,258                       08/17/93
5,236,605                       07/909,728                       08/17/93
5,236,606                       07/814,769                       08/17/93
5,236,612                       07/815,445                       08/17/93
5,236,622                       07/731,259                       08/17/93
5,236,624                       07/547,534                       08/17/93
5,236,631                       07/828,255                       08/17/93
5,236,639                       07/810,878                       08/17/93
5,236,650                       07/811,630                       08/17/93
5,236,655                       07/808,162                       08/17/93
5,236,664                       07/861,102                       08/17/93
5,236,665                       07/971,717                       08/17/93
5,236,666                       07/833,950                       08/17/93
5,236,667                       07/720,595                       08/17/93
5,236,670                       07/893,391                       08/17/93
5,236,671                       07/586,760                       08/17/93
5,236,675                       07/865,102                       08/17/93
5,236,676                       07/897,000                       08/17/93
5,236,679                       07/879,254                       08/17/93
5,236,685                       07/919,334                       08/17/93
5,236,687                       07/674,335                       08/17/93
5,236,692                       07/853,421                       08/17/93
5,236,693                       07/612,855                       08/17/93
5,236,701                       07/381,988                       08/17/93
5,236,703                       07/382,857                       08/17/93
5,236,705                       07/720,868                       08/17/93
5,236,707                       07/790,670                       08/17/93
5,236,711                       07/717,533                       08/17/93
5,236,721                       07/836,058                       08/17/93
5,236,728                       07/817,297                       08/17/93
5,236,731                       07/813,220                       08/17/93
5,236,734                       07/851,650                       08/17/93
5,236,743                       07/852,282                       08/17/93
5,236,752                       07/762,546                       08/17/93
5,236,771                       07/831,949                       08/17/93
5,236,774                       07/854,191                       08/17/93
5,236,779                       07/748,332                       08/17/93
5,236,781                       07/648,643                       08/17/93
5,236,782                       07/730,405                       08/17/93
5,236,784                       07/876,979                       08/17/93
5,236,787                       07/737,284                       08/17/93
5,236,793                       07/828,937                       08/17/93
5,236,794                       07/912,518                       08/17/93
5,236,802                       07/844,746                       08/17/93
5,236,811                       07/908,781                       08/17/93
5,236,814                       07/757,275                       08/17/93
5,236,820                       07/944,912                       08/17/93
5,236,823                       07/224,712                       08/17/93
5,236,824                       07/812,132                       08/17/93
5,236,839                       07/974,326                       08/17/93
5,236,852                       07/950,333                       08/17/93
5,236,854                       07/813,479                       08/17/93
5,236,858                       07/796,845                       08/17/93
5,236,866                       07/960,218                       08/17/93
5,236,870                       07/797,169                       08/17/93
5,236,889                       07/445,629                       08/17/93
5,236,893                       07/941,503                       08/17/93
5,236,895                       07/735,175                       08/17/93
5,236,896                       07/771,986                       08/17/93
5,236,903                       07/912,323                       08/17/93
5,236,911                       07/685,080                       08/17/93
5,236,917                       07/793,033                       08/17/93
5,236,918                       07/768,754                       08/17/93
5,236,929                       07/847,279                       08/17/93
5,236,930                       07/826,220                       08/17/93
5,236,934                       07/935,509                       08/17/93
5,236,936                       07/834,037                       08/17/93
5,236,937                       07/834,038                       08/17/93
5,236,949                       08/011,512                       08/17/93
5,236,950                       07/311,945                       08/17/93
5,236,961                       07/999,514                       08/17/93
5,236,999                       07/855,898                       08/17/93
5,237,002                       07/836,382                       08/17/93
5,237,011                       07/684,193                       08/17/93
5,237,012                       07/955,966                       08/17/93
5,237,015                       07/787,507                       08/17/93
5,237,016                       07/293,893                       08/17/93
5,237,018                       07/751,352                       08/17/93
5,237,021                       07/941,297                       08/17/93
5,237,032                       07/953,878                       08/17/93
5,237,042                       07/799,242                       08/17/93
5,237,043                       07/889,866                       08/17/93
5,237,044                       07/422,895                       08/17/93
5,237,050                       07/524,411                       08/17/93
5,237,051                       07/623,033                       08/17/93
5,237,054                       07/772,636                       08/17/93
5,237,071                       07/644,299                       08/17/93
5,237,073                       07/664,515                       08/17/93
5,237,080                       07/820,901                       08/17/93
5,237,087                       07/949,031                       08/17/93
5,237,090                       07/766,374                       08/17/93
5,237,095                       07/961,801                       08/17/93
5,237,096                       07/961,806                       08/17/93
5,237,098                       07/958,950                       08/17/93
5,237,101                       07/470,814                       08/17/93
5,237,107                       07/879,583                       08/17/93
5,237,109                       07/899,407                       08/17/93
5,237,111                       07/930,637                       08/17/93
5,237,137                       07/857,936                       08/17/93
5,237,140                       07/694,813                       08/17/93
5,237,142                       07/647,384                       08/17/93
5,237,144                       07/716,105                       08/17/93
5,237,145                       07/982,410                       08/17/93
5,237,153                       07/697,309                       08/17/93
5,237,155                       07/189,839                       08/17/93
5,237,164                       07/803,749                       08/17/93
5,237,167                       07/809,997                       08/17/93
5,237,168                       07/882,616                       08/17/93
5,237,172                       07/937,216                       08/17/93
5,237,180                       07/815,466                       08/17/93
5,237,192                       07/800,749                       08/17/93
5,237,197                       07/763,817                       08/17/93
5,237,208                       07/772,596                       08/17/93
5,237,214                       07/929,917                       08/17/93
5,237,224                       07/850,215                       08/17/93
5,237,226                       07/843,305                       08/17/93
5,237,228                       07/791,820                       08/17/93
5,237,229                       07/869,778                       08/17/93
5,237,231                       07/805,080                       08/17/93
5,237,235                       07/767,338                       08/17/93
5,237,239                       07/772,333                       08/17/93
5,237,242                       07/813,029                       08/17/93
5,237,243                       07/872,243                       08/17/93
5,237,256                       07/392,473                       08/17/93
5,237,258                       07/404,104                       08/17/93
5,237,269                       07/676,778                       08/17/93
5,237,290                       07/880,428                       08/17/93
5,237,294                       07/802,685                       08/17/93
5,237,299                       07/872,779                       08/17/93
5,237,306                       07/808,174                       08/17/93
5,237,312                       07/665,197                       08/17/93
5,237,314                       07/780,164                       08/17/93
5,237,318                       07/693,975                       08/17/93
5,237,334                       07/876,696                       08/17/93
5,237,347                       07/780,390                       08/17/93
5,237,350                       07/764,281                       08/17/93
5,237,366                       07/795,130                       08/17/93
5,237,371                       07/764,122                       08/17/93
5,237,378                       07/888,959                       08/17/93
5,237,389                       07/865,639                       08/17/93
5,237,392                       07/928,083                       08/17/93
5,237,394                       07/969,533                       08/17/93
5,237,399                       07/737,456                       08/17/93
5,237,404                       07/723,174                       08/17/93
5,237,427                       07/572,353                       08/17/93
5,237,432                       07/812,334                       08/17/93
5,237,445                       07/795,140                       08/17/93
5,237,446                       07/536,958                       08/17/93
5,237,453                       07/903,003                       08/17/93
5,237,458                       07/989,770                       08/17/93
5,237,459                       07/695,964                       08/17/93
5,237,460                       07/940,769                       08/17/93
5,237,466                       07/430,992                       08/17/93
5,237,468                       07/776,945                       08/17/93
5,237,479                       07/935,150                       08/17/93
5,237,488                       07/881,431                       08/17/93
5,237,490                       07/910,623                       08/17/93
5,237,493                       07/773,053                       08/17/93
5,237,504                       07/655,568                       08/17/93
5,237,507                       07/633,070                       08/17/93
5,237,508                       07/674,323                       08/17/93
5,237,510                       07/672,861                       08/17/93
5,237,524                       07/712,219                       08/17/93
5,237,525                       07/891,094                       08/17/93
5,237,530                       07/795,147                       08/17/93
5,237,541                       07/887,438                       08/17/93
5,237,545                       07/997,890                       08/17/93
5,237,548                       07/860,247                       08/17/93
5,237,550                       07/705,046                       08/17/93
5,237,562                       07/667,663                       08/17/93
5,237,567                       07/607,143                       08/17/93
5,237,579                       07/824,015                       08/17/93
5,237,585                       07/748,866                       08/17/93
5,237,589                       07/715,241                       08/17/93
5,237,591                       07/747,038                       08/17/93
5,237,596                       07/774,526                       08/17/93
5,237,599                       07/791,133                       08/17/93
5,237,600                       07/794,942                       08/17/93
5,237,615                       06/452,476                       08/17/93
5,237,616                       07/947,871                       08/17/93
5,237,629                       07/854,024                       08/17/93
5,237,634                       07/817,168                       08/17/93
5,237,635                       07/915,971                       08/17/93
5,237,647                       07/784,649                       08/17/93
5,237,656                       07/478,745                       08/17/93
5,237,667                       07/755,503                       08/17/93
5,237,681                       07/705,187                       08/17/93
5,237,702                       07/419,734                       08/17/93

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

Patent                            Serial                            Issue
Number                            Number                             Date

5,657,488                       08/567,050                       08/19/97
5,657,489                       08/577,825                       08/19/97
5,657,491                       08/527,923                       08/19/97
5,657,492                       08/527,951                       08/19/97
5,657,495                       08/495,658                       08/19/97
5,657,500                       08/630,886                       08/19/97
5,657,511                       08/576,939                       08/19/97
5,657,515                       08/680,778                       08/19/97
5,657,526                       08/573,286                       08/19/97
5,657,530                       08/502,651                       08/19/97
5,657,548                       08/597,942                       08/19/97
5,657,556                       08/747,212                       08/19/97
5,657,557                       08/673,514                       08/19/97
5,657,566                       08/508,438                       08/19/97
5,657,569                       08/509,162                       08/19/97
5,657,571                       08/500,164                       08/19/97
5,657,573                       08/556,462                       08/19/97
5,657,575                       08/452,978                       08/19/97
5,657,577                       08/561,872                       08/19/97
5,657,583                       08/562,588                       08/19/97
5,657,585                       08/568,627                       08/19/97
5,657,586                       08/578,865                       08/19/97
5,657,589                       08/558,853                       08/19/97
5,657,590                       08/590,776                       08/19/97
5,657,597                       08/419,880                       08/19/97
5,657,599                       08/505,976                       08/19/97
5,657,608                       08/590,763                       08/19/97
5,657,609                       08/568,368                       08/19/97
5,657,619                       08/512,401                       08/19/97
5,657,622                       08/583,709                       08/19/97
5,657,626                       08/578,003                       08/19/97
5,657,632                       08/336,892                       08/19/97
5,657,636                       08/595,247                       08/19/97
5,657,645                       08/599,787                       08/19/97
5,657,649                       08/517,633                       08/19/97
5,657,654                       08/508,191                       08/19/97
5,657,678                       08/567,123                       08/19/97
5,657,679                       08/578,015                       08/19/97
5,657,683                       08/575,059                       08/19/97
5,657,684                       08/515,816                       08/19/97
5,657,694                       08/484,066                       08/19/97
5,657,702                       08/513,756                       08/19/97
5,657,709                       08/511,891                       08/19/97
5,657,710                       08/505,669                       08/19/97
5,657,718                       08/518,488                       08/19/97
5,657,720                       08/502,804                       08/19/97
5,657,741                       08/545,419                       08/19/97
5,657,745                       08/585,946                       08/19/97
5,657,753                       08/581,315                       08/19/97
5,657,764                       08/521,246                       08/19/97
5,657,766                       08/553,748                       08/19/97
5,657,769                       08/634,742                       08/19/97
5,657,772                       08/354,678                       08/19/97
5,657,774                       08/592,496                       08/19/97
5,657,783                       08/541,712                       08/19/97
5,657,788                       08/513,537                       08/19/97
5,657,794                       08/530,490                       08/19/97
5,657,800                       08/547,863                       08/19/97
5,657,801                       08/545,223                       08/19/97
5,657,804                       08/595,711                       08/19/97
5,657,809                       08/523,120                       08/19/97
5,657,810                       08/666,220                       08/19/97
5,657,811                       08/456,569                       08/19/97
5,657,813                       08/683,770                       08/19/97
5,657,818                       08/149,816                       08/19/97
5,657,828                       08/507,910                       08/19/97
5,657,841                       08/608,008                       08/19/97
5,657,849                       08/471,087                       08/19/97
5,657,852                       08/551,258                       08/19/97
5,657,855                       08/381,731                       08/19/97
5,657,856                       08/528,938                       08/19/97
5,657,859                       08/456,961                       08/19/97
5,657,862                       08/555,929                       08/19/97
5,657,868                       08/561,955                       08/19/97
5,657,870                       08/515,975                       08/19/97
5,657,871                       08/584,238                       08/19/97
5,657,881                       08/351,836                       08/19/97
5,657,885                       08/524,613                       08/19/97
5,657,886                       08/508,785                       08/19/97
5,657,889                       08/509,822                       08/19/97
5,657,890                       08/548,953                       08/19/97
5,657,892                       08/211,814                       08/19/97
5,657,894                       08/539,752                       08/19/97
5,657,896                       08/693,354                       08/19/97
5,657,907                       08/558,911                       08/19/97
5,657,911                       08/500,852                       08/19/97
5,657,913                       08/497,209                       08/19/97
5,657,914                       08/507,699                       08/19/97
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