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 July 18, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

4,847,913                       07/110,306                       07/18/89
4,847,936                       07/140,762                       07/18/89
4,847,940                       07/200,248                       07/18/89
4,847,941                       07/005,258                       07/18/89
4,847,948                       07/162,406                       07/18/89
4,847,955                       07/167,530                       07/18/89
4,847,968                       07/259,441                       07/18/89
4,847,974                       07/273,414                       07/18/89
4,847,976                       07/084,861                       07/18/89
4,847,977                       07/290,760                       07/18/89
4,847,978                       07/114,218                       07/18/89
4,847,981                       07/184,386                       07/18/89
4,847,987                       07/237,378                       07/18/89
4,847,993                       07/246,751                       07/18/89
4,847,995                       07/128,758                       07/18/89
4,848,008                       07/062,080                       07/18/89
4,848,014                       07/150,087                       07/18/89
4,848,031                       07/251,178                       07/18/89
4,848,043                       07/243,963                       07/18/89
4,848,044                       07/219,500                       07/18/89
4,848,047                       07/119,390                       07/18/89
4,848,049                       07/239,427                       07/18/89
4,848,050                       07/170,156                       07/18/89
4,848,053                       07/032,188                       07/18/89
4,848,055                       07/192,061                       07/18/89
4,848,073                       07/211,145                       07/18/89
4,848,076                       07/148,686                       07/18/89
4,848,077                       07/177,628                       07/18/89
4,848,111                       07/116,234                       07/18/89
4,848,119                       07/035,647                       07/18/89
4,848,130                       07/212,203                       07/18/89
4,848,133                       07/132,736                       07/18/89
4,848,135                       07/048,871                       07/18/89
4,848,136                       07/142,859                       07/18/89
4,848,139                       07/148,164                       07/18/89
4,848,142                       07/256,754                       07/18/89
4,848,147                       07/072,104                       07/18/89
4,848,148                       07/211,199                       07/18/89
4,848,154                       07/215,252                       07/18/89
4,848,157                       07/122,682                       07/18/89
4,848,184                       07/187,571                       07/18/89
4,848,186                       07/137,480                       07/18/89
4,848,200                       07/109,352                       07/18/89
4,848,204                       07/209,721                       07/18/89
4,848,205                       07/132,787                       07/18/89
4,848,211                       07/130,286                       07/18/89
4,848,215                       07/170,170                       07/18/89
4,848,216                       07/146,707                       07/18/89
4,848,217                       07/164,387                       07/18/89
4,848,224                       07/180,733                       07/18/89
4,848,236                       07/124,620                       07/18/89
4,848,246                       07/248,003                       07/18/89
4,848,257                       07/127,539                       07/18/89
4,848,268                       07/062,960                       07/18/89
4,848,280                       07/141,764                       07/18/89
4,848,291                       07/198,693                       07/18/89
4,848,292                       07/186,617                       07/18/89
4,848,300                       07/151,999                       07/18/89
4,848,302                       07/187,322                       07/18/89
4,848,308                       07/142,781                       07/18/89
4,848,311                       07/166,949                       07/18/89
4,848,320                       07/096,124                       07/18/89
4,848,321                       07/272,438                       07/18/89
4,848,323                       07/154,976                       07/18/89
4,848,325                       07/125,890                       07/18/89
4,848,328                       07/189,427                       07/18/89
4,848,332                       07/163,145                       07/18/89
4,848,333                       07/127,362                       07/18/89
4,848,336                       07/227,000                       07/18/89
4,848,342                       06/905,776                       07/18/89
4,848,350                       07/262,083                       07/18/89
4,848,365                       07/019,436                       07/18/89
4,848,380                       07/182,178                       07/18/89
4,848,392                       07/199,070                       07/18/89
4,848,402                       06/946,710                       07/18/89
4,848,403                       07/166,466                       07/18/89
4,848,411                       07/113,776                       07/18/89
4,848,418                       07/125,339                       07/18/89
4,848,420                       07/111,335                       07/18/89
4,848,432                       07/229,305                       07/18/89
4,848,433                       07/180,888                       07/18/89
4,848,442                       07/106,024                       07/18/89
4,848,444                       07/229,450                       07/18/89
4,848,449                       07/193,244                       07/18/89
4,848,452                       07/174,301                       07/18/89
4,848,458                       07/252,129                       07/18/89
4,848,466                       07/149,716                       07/18/89
4,848,470                       07/274,354                       07/18/89
4,848,474                       07/212,659                       07/18/89
4,848,486                       07/064,983                       07/18/89
4,848,493                       07/260,151                       07/18/89
4,848,501                       07/046,676                       07/18/89
4,848,506                       07/067,922                       07/18/89
4,848,507                       07/148,781                       07/18/89
4,848,519                       06/686,177                       07/18/89
4,848,529                       07/095,385                       07/18/89
4,848,534                       07/124,794                       07/18/89
4,848,548                       07/097,983                       07/18/89
4,848,554                       07/233,646                       07/18/89
4,848,561                       07/083,335                       07/18/89
4,848,562                       07/278,364                       07/18/89
4,848,575                       07/264,252                       07/18/89
4,848,593                       06/943,267                       07/18/89
4,848,596                       06/918,714                       07/18/89
4,848,597                       07/148,862                       07/18/89
4,848,598                       07/161,551                       07/18/89
4,848,609                       07/096,049                       07/18/89
4,848,614                       07/120,617                       07/18/89
4,848,622                       07/280,544                       07/18/89
4,848,634                       07/154,333                       07/18/89
4,848,639                       07/250,638                       07/18/89
4,848,645                       07/147,059                       07/18/89
4,848,656                       07/198,352                       07/18/89
4,848,657                       07/125,816                       07/18/89
4,848,658                       07/058,947                       07/18/89
4,848,666                       07/245,313                       07/18/89
4,848,674                       07/208,663                       07/18/89
4,848,688                       07/151,838                       07/18/89
4,848,690                       07/177,073                       07/18/89
4,848,693                       07/193,323                       07/18/89
4,848,694                       07/219,256                       07/18/89
4,848,695                       07/196,825                       07/18/89
4,848,718                       07/040,840                       07/18/89
4,848,725                       07/140,546                       07/18/89
4,848,729                       07/151,293                       07/18/89
4,848,733                       07/115,861                       07/18/89
4,848,735                       07/098,966                       07/18/89
4,848,737                       07/104,282                       07/18/89
4,848,743                       07/129,298                       07/18/89
4,848,746                       07/152,010                       07/18/89
4,848,747                       07/113,441                       07/18/89
4,848,748                       07/232,178                       07/18/89
4,848,755                       07/263,362                       07/18/89
4,848,756                       07/281,335                       07/18/89
4,848,775                       07/203,014                       07/18/89
4,848,778                       07/279,603                       07/18/89
4,848,782                       07/149,644                       07/18/89
4,848,796                       07/208,535                       07/18/89
4,848,801                       07/195,376                       07/18/89
4,848,811                       07/150,624                       07/18/89
4,848,823                       07/106,816                       07/18/89
4,848,826                       07/065,751                       07/18/89
4,848,829                       07/112,456                       07/18/89
4,848,832                       07/104,222                       07/18/89
4,848,835                       07/043,224                       07/18/89
4,848,838                       07/285,185                       07/18/89
4,848,858                       07/153,899                       07/18/89
4,848,860                       07/189,131                       07/18/89
4,848,870                       07/178,115                       07/18/89
4,848,872                       07/217,998                       07/18/89
4,848,873                       07/198,519                       07/18/89
4,848,874                       07/179,198                       07/18/89
4,848,888                       07/116,849                       07/18/89
4,848,893                       07/100,371                       07/18/89
4,848,898                       07/068,090                       07/18/89
4,848,901                       07/106,747                       07/18/89
4,848,905                       07/197,615                       07/18/89
4,848,908                       06/544,506                       07/18/89
4,848,913                       07/190,333                       07/18/89
4,848,915                       07/186,010                       07/18/89
4,848,918                       07/228,941                       07/18/89
4,848,920                       07/161,442                       07/18/89
4,848,921                       06/909,531                       07/18/89
4,848,924                       07/087,052                       07/18/89
4,848,931                       07/168,082                       07/18/89
4,848,938                       07/107,279                       07/18/89
4,848,939                       06/632,064                       07/18/89
4,848,942                       07/157,920                       07/18/89
4,848,946                       07/151,529                       07/18/89
4,848,963                       07/157,848                       07/18/89
4,848,972                       07/167,758                       07/18/89
4,848,973                       07/210,635                       07/18/89
4,848,983                       07/105,351                       07/18/89
4,848,984                       06/652,410                       07/18/89
4,848,986                       07/181,306                       07/18/89
4,849,036                       07/116,806                       07/18/89
4,849,041                       07/159,770                       07/18/89
4,849,044                       07/076,594                       07/18/89
4,849,046                       07/197,576                       07/18/89
4,849,048                       07/060,167                       07/18/89
4,849,052                       06/767,257                       07/18/89
4,849,053                       07/283,682                       07/18/89
4,849,075                       06/826,568                       07/18/89
4,849,087                       07/155,153                       07/18/89
4,849,097                       07/126,342                       07/18/89
4,849,108                       07/118,310                       07/18/89
4,849,110                       07/119,479                       07/18/89
4,849,114                       07/163,978                       07/18/89
4,849,115                       07/099,061                       07/18/89
4,849,117                       07/064,171                       07/18/89
4,849,122                       07/097,012                       07/18/89
4,849,128                       06/604,449                       07/18/89
4,849,137                       07/082,333                       07/18/89
4,849,139                       07/173,448                       07/18/89
4,849,142                       06/816,075                       07/18/89
4,849,143                       07/120,356                       07/18/89
4,849,153                       07/166,047                       07/18/89
4,849,155                       07/019,735                       07/18/89
4,849,160                       07/127,131                       07/18/89
4,849,163                       07/093,883                       07/18/89
4,849,165                       07/191,535                       07/18/89
4,849,167                       07/169,884                       07/18/89
4,849,168                       07/120,070                       07/18/89
4,849,169                       07/193,705                       07/18/89
4,849,178                       06/396,175                       07/18/89
4,849,182                       07/193,812                       07/18/89
4,849,196                       07/137,830                       07/18/89
4,849,198                       07/203,160                       07/18/89
4,849,222                       07/029,825                       07/18/89
4,849,227                       07/021,625                       07/18/89
4,849,235                       06/927,760                       07/18/89
4,849,238                       07/176,753                       07/18/89
4,849,253                       07/055,573                       07/18/89
4,849,260                       07/068,910                       07/18/89
4,849,261                       07/073,516                       07/18/89
4,849,266                       07/116,412                       07/18/89
4,849,273                       07/042,290                       07/18/89
4,849,277                       07/077,182                       07/18/89
4,849,282                       07/061,363                       07/18/89
4,849,300                       06/796,208                       07/18/89
4,849,308                       07/169,531                       07/18/89
4,849,309                       07/227,021                       07/18/89
4,849,315                       07/075,163                       07/18/89
4,849,335                       06/614,446                       07/18/89
4,849,343                       07/027,599                       07/18/89
4,849,345                       06/851,207                       07/18/89
4,849,346                       07/013,671                       07/18/89
4,849,352                       06/659,629                       07/18/89
4,849,361                       06/876,462                       07/18/89
4,849,366                       07/144,272                       07/18/89
4,849,368                       07/146,664                       07/18/89
4,849,372                       07/155,982                       07/18/89
4,849,381                       07/201,931                       07/18/89
4,849,384                       07/212,168                       07/18/89
4,849,390                       07/038,949                       07/18/89
4,849,394                       07/079,082                       07/18/89
4,849,401                       07/178,272                       07/18/89
4,849,421                       07/162,935                       07/18/89
4,849,424                       07/082,056                       07/18/89
4,849,433                       07/012,515                       07/18/89
4,849,441                       07/136,855                       07/18/89
4,849,447                       07/108,539                       07/18/89
4,849,456                       07/302,802                       07/18/89
4,849,461                       07/027,777                       07/18/89
4,849,465                       07/214,453                       07/18/89
4,849,477                       07/184,644                       07/18/89
4,849,488                       07/095,386                       07/18/89
4,849,507                       06/835,051                       07/18/89
4,849,519                       07/118,364                       07/18/89
4,849,529                       07/004,401                       07/18/89
4,849,547                       07/108,095                       07/18/89
4,849,548                       07/170,486                       07/18/89
4,849,551                       07/172,385                       07/18/89
4,849,557                       07/193,061                       07/18/89
4,849,563                       07/142,354                       07/18/89
4,849,583                       07/219,934                       07/18/89
4,849,598                       07/175,403                       07/18/89
4,849,602                       07/231,368                       07/18/89
4,849,608                       07/159,404                       07/18/89
4,849,613                       06/733,589                       07/18/89
4,849,620                       07/033,688                       07/18/89
4,849,621                       07/170,135                       07/18/89
4,849,626                       07/120,297                       07/18/89
4,849,627                       07/197,488                       07/18/89
4,849,643                       07/179,496                       07/18/89
4,849,652                       07/123,033                       07/18/89
4,849,664                       06/895,122                       07/18/89
4,849,675                       07/079,649                       07/18/89
4,849,680                       07/110,948                       07/18/89
4,849,682                       07/115,155                       07/18/89
4,849,710                       07/186,956                       07/18/89
4,849,716                       07/231,922                       07/18/89
4,849,718                       07/257,100                       07/18/89
4,849,724                       07/281,556                       07/18/89
4,849,733                       07/264,905                       07/18/89
4,849,743                       07/230,302                       07/18/89
4,849,746                       06/848,599                       07/18/89
4,849,752                       07/145,682                       07/18/89
4,849,754                       07/151,626                       07/18/89
4,849,759                       07/136,031                       07/18/89
4,849,760                       07/123,466                       07/18/89
4,849,763                       07/041,811                       07/18/89
4,849,765                       07/189,092                       07/18/89
4,849,778                       07/100,095                       07/18/89
4,849,803                       06/602,573                       07/18/89
4,849,811                       07/215,733                       07/18/89
4,849,817                       07/152,423                       07/18/89
4,849,818                       07/240,433                       07/18/89
4,849,823                       07/156,989                       07/18/89
4,849,840                       07/031,270                       07/18/89
4,849,843                       07/289,410                       07/18/89
4,849,848                       07/187,139                       07/18/89
4,849,851                       07/265,153                       07/18/89
4,849,852                       07/251,605                       07/18/89
4,849,864                       07/102,401                       07/18/89
4,849,867                       07/207,717                       07/18/89
4,849,872                       07/147,743                       07/18/89
4,849,880                       06/798,931                       07/18/89
4,849,881                       06/664,293                       07/18/89
4,849,883                       07/115,019                       07/18/89
4,849,891                       07/035,854                       07/18/89
4,849,909                       06/795,773                       07/18/89
4,849,912                       07/081,144                       07/18/89
4,849,914                       07/099,800                       07/18/89
4,849,932                       07/165,470                       07/18/89
4,849,935                       07/113,204                       07/18/89
4,849,937                       07/169,066                       07/18/89
4,849,972                       07/080,628                       07/18/89
4,849,975                       07/119,011                       07/18/89
4,849,981                       07/104,614                       07/18/89
4,849,982                       07/098,198                       07/18/89
4,849,984                       06/825,152                       07/18/89
4,849,988                       07/158,425                       07/18/89
4,850,006                       07/120,826                       07/18/89
4,850,011                       07/143,903                       07/18/89
4,850,014                       07/024,277                       07/18/89
4,850,024                       06/720,013                       07/18/89
4,850,030                       07/113,355                       07/18/89
4,850,038                       06/886,075                       07/18/89
4,850,043                       07/197,714                       07/18/89
4,850,046                       07/113,826                       07/18/89

                    PATENTS WHICH EXPIRED ON July 13, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,226,183                       07/794,276                       07/13/93
5,226,186                       07/909,146                       07/13/93
5,226,189                       07/897,318                       07/13/93
5,226,193                       07/675,960                       07/13/93
5,226,197                       07/944,249                       07/13/93
5,226,198                       07/906,542                       07/13/93
5,226,204                       07/654,047                       07/13/93
5,226,207                       07/811,289                       07/13/93
5,226,215                       07/597,791                       07/13/93
5,226,218                       07/813,197                       07/13/93
5,226,227                       07/701,844                       07/13/93
5,226,233                       07/828,843                       07/13/93
5,226,234                       07/905,616                       07/13/93
5,226,252                       07/657,108                       07/13/93
5,226,253                       07/813,087                       07/13/93
5,226,259                       07/794,253                       07/13/93
5,226,270                       07/846,890                       07/13/93
5,226,274                       07/712,691                       07/13/93
5,226,276                       07/773,524                       07/13/93
5,226,284                       07/892,290                       07/13/93
5,226,290                       07/698,601                       07/13/93
5,226,294                       07/874,948                       07/13/93
5,226,304                       07/815,939                       07/13/93
5,226,312                       07/808,319                       07/13/93
5,226,317                       07/687,652                       07/13/93
5,226,320                       07/840,746                       07/13/93
5,226,323                       07/740,050                       07/13/93
5,226,330                       07/785,782                       07/13/93
5,226,333                       07/707,541                       07/13/93
5,226,335                       07/682,954                       07/13/93
5,226,364                       07/886,548                       07/13/93
5,226,366                       07/834,882                       07/13/93
5,226,395                       07/820,352                       07/13/93
5,226,397                       07/861,902                       07/13/93
5,226,400                       07/958,006                       07/13/93
5,226,403                       07/700,603                       07/13/93
5,226,406                       07/871,134                       07/13/93
5,226,407                       07/820,267                       07/13/93
5,226,408                       07/868,004                       07/13/93
5,226,411                       07/874,679                       07/13/93
5,226,416                       07/623,732                       07/13/93
5,226,426                       07/628,899                       07/13/93
5,226,434                       07/770,904                       07/13/93
5,226,438                       07/765,540                       07/13/93
5,226,447                       07/957,127                       07/13/93
5,226,451                       07/962,135                       07/13/93
5,226,457                       07/848,800                       07/13/93
5,226,460                       07/749,500                       07/13/93
5,226,461                       07/794,083                       07/13/93
5,226,464                       07/925,246                       07/13/93
5,226,472                       07/792,705                       07/13/93
5,226,477                       07/741,119                       07/13/93
5,226,490                       07/966,498                       07/13/93
5,226,492                       07/863,015                       07/13/93
5,226,500                       07/973,529                       07/13/93
5,226,507                       07/963,775                       07/13/93
5,226,512                       07/980,435                       07/13/93
5,226,516                       07/919,913                       07/13/93
5,226,521                       07/891,112                       07/13/93
5,226,526                       07/914,872                       07/13/93
5,226,530                       07/855,900                       07/13/93
5,226,531                       07/873,800                       07/13/93
5,226,549                       07/831,418                       07/13/93
5,226,567                       07/770,533                       07/13/93
5,226,577                       07/631,338                       07/13/93
5,226,588                       07/863,850                       07/13/93
5,226,590                       07/821,092                       07/13/93
5,226,594                       07/860,051                       07/13/93
5,226,598                       07/881,342                       07/13/93
5,226,606                       07/811,116                       07/13/93
5,226,609                       07/715,684                       07/13/93
5,226,621                       07/930,145                       07/13/93
5,226,623                       07/897,759                       07/13/93
5,226,633                       07/193,703                       07/13/93
5,226,634                       07/576,331                       07/13/93
5,226,635                       07/831,839                       07/13/93
5,226,636                       07/897,182                       07/13/93
5,226,640                       07/708,436                       07/13/93
5,226,645                       07/849,705                       07/13/93
5,226,650                       07/577,362                       07/13/93
5,226,651                       07/842,666                       07/13/93
5,226,652                       07/899,583                       07/13/93
5,226,653                       07/906,523                       07/13/93
5,226,655                       07/975,715                       07/13/93
5,226,658                       07/847,659                       07/13/93
5,226,660                       07/699,959                       07/13/93
5,226,661                       07/988,724                       07/13/93
5,226,665                       07/871,509                       07/13/93
5,226,669                       07/959,581                       07/13/93
5,226,674                       07/763,460                       07/13/93
5,226,681                       07/738,682                       07/13/93
5,226,686                       07/921,046                       07/13/93
5,226,691                       07/914,081                       07/13/93
5,226,695                       07/901,636                       07/13/93
5,226,703                       07/870,996                       07/13/93
5,226,709                       07/916,690                       07/13/93
5,226,720                       07/820,292                       07/13/93
5,226,725                       07/813,897                       07/13/93
5,226,728                       07/787,188                       07/13/93
5,226,729                       07/957,732                       07/13/93
5,226,731                       07/890,537                       07/13/93
5,226,739                       07/747,351                       07/13/93
5,226,747                       07/934,408                       07/13/93
5,226,754                       07/881,538                       07/13/93
5,226,759                       07/830,697                       07/13/93
5,226,763                       07/935,051                       07/13/93
5,226,772                       07/890,703                       07/13/93
5,226,775                       07/965,041                       07/13/93
5,226,792                       07/306,486                       07/13/93
5,226,793                       07/704,408                       07/13/93
5,226,794                       07/812,478                       07/13/93
5,226,800                       07/838,255                       07/13/93
5,226,801                       07/931,007                       07/13/93
5,226,806                       07/845,046                       07/13/93
5,226,807                       07/914,736                       07/13/93
5,226,813                       07/789,318                       07/13/93
5,226,815                       07/987,371                       07/13/93
5,226,829                       07/886,524                       07/13/93
5,226,838                       07/972,745                       07/13/93
5,226,850                       07/844,713                       07/13/93
5,226,854                       07/841,011                       07/13/93
5,226,859                       07/660,292                       07/13/93
5,226,864                       07/787,398                       07/13/93
5,226,872                       07/865,243                       07/13/93
5,226,875                       07/801,271                       07/13/93
5,226,884                       07/945,912                       07/13/93
5,226,912                       07/570,344                       07/13/93
5,226,922                       07/843,592                       07/13/93
5,226,925                       07/955,005                       07/13/93
5,226,928                       07/632,984                       07/13/93
5,226,929                       07/883,170                       07/13/93
5,226,931                       07/782,325                       07/13/93
5,226,937                       07/794,852                       07/13/93
5,226,944                       07/959,850                       07/13/93
5,226,947                       07/837,038                       07/13/93
5,226,960                       07/880,081                       07/13/93
5,226,962                       07/789,301                       07/13/93
5,226,970                       07/694,531                       07/13/93
5,226,985                       07/823,737                       07/13/93
5,226,988                       07/707,884                       07/13/93
5,226,994                       07/847,582                       07/13/93
5,227,000                       07/682,618                       07/13/93
5,227,009                       07/849,621                       07/13/93
5,227,010                       07/680,055                       07/13/93
5,227,020                       07/761,985                       07/13/93
5,227,022                       07/885,688                       07/13/93
5,227,029                       08/011,233                       07/13/93
5,227,032                       07/764,581                       07/13/93
5,227,053                       07/620,034                       07/13/93
5,227,056                       07/782,381                       07/13/93
5,227,057                       07/896,626                       07/13/93
5,227,060                       07/909,923                       07/13/93
5,227,061                       07/819,803                       07/13/93
5,227,062                       07/796,667                       07/13/93
5,227,068                       07/880,224                       07/13/93
5,227,075                       07/768,979                       07/13/93
5,227,076                       07/837,914                       07/13/93
5,227,077                       07/841,828                       07/13/93
5,227,081                       07/840,425                       07/13/93
5,227,083                       07/842,688                       07/13/93
5,227,084                       07/869,587                       07/13/93
5,227,087                       07/297,366                       07/13/93
5,227,090                       07/635,134                       07/13/93
5,227,096                       07/936,859                       07/13/93
5,227,097                       07/643,506                       07/13/93
5,227,098                       07/688,138                       07/13/93
5,227,100                       07/805,492                       07/13/93
5,227,120                       07/757,279                       07/13/93
5,227,124                       07/561,684                       07/13/93
5,227,127                       07/808,236                       07/13/93
5,227,134                       07/737,432                       07/13/93
5,227,141                       07/878,531                       07/13/93
5,227,143                       07/766,035                       07/13/93
5,227,153                       07/769,357                       07/13/93
5,227,157                       07/388,321                       07/13/93
5,227,173                       07/737,342                       07/13/93
5,227,183                       07/735,954                       07/13/93
5,227,189                       07/930,105                       07/13/93
5,227,190                       07/777,186                       07/13/93
5,227,192                       07/986,070                       07/13/93
5,227,194                       07/735,925                       07/13/93
5,227,199                       07/822,012                       07/13/93
5,227,200                       07/848,606                       07/13/93
5,227,203                       07/885,512                       07/13/93
5,227,205                       07/578,250                       07/13/93
5,227,207                       07/643,183                       07/13/93
5,227,213                       07/864,648                       07/13/93
5,227,217                       07/708,677                       07/13/93
5,227,218                       07/667,424                       07/13/93
5,227,228                       07/793,854                       07/13/93
5,227,229                       07/633,607                       07/13/93
5,227,235                       07/696,911                       07/13/93
5,227,246                       07/952,193                       07/13/93
5,227,247                       07/732,273                       07/13/93
5,227,254                       07/717,453                       07/13/93
5,227,262                       07/910,486                       07/13/93
5,227,263                       07/892,067                       07/13/93
5,227,267                       07/607,807                       07/13/93
5,227,277                       07/686,502                       07/13/93
5,227,279                       07/856,861                       07/13/93
5,227,290                       07/771,830                       07/13/93
5,227,292                       07/551,531                       07/13/93
5,227,299                       07/822,906                       07/13/93
5,227,305                       07/840,637                       07/13/93
5,227,308                       07/788,291                       07/13/93
5,227,313                       07/918,536                       07/13/93
5,227,317                       07/763,351                       07/13/93
5,227,328                       07/851,452                       07/13/93
5,227,330                       07/785,731                       07/13/93
5,227,338                       07/793,778                       07/13/93
5,227,343                       07/843,014                       07/13/93
5,227,345                       07/518,379                       07/13/93
5,227,346                       07/847,522                       07/13/93
5,227,348                       07/797,521                       07/13/93
5,227,349                       07/934,179                       07/13/93
5,227,351                       07/668,521                       07/13/93
5,227,354                       07/862,960                       07/13/93
5,227,358                       07/768,303                       07/13/93
5,227,360                       07/926,270                       07/13/93
5,227,367                       07/992,013                       07/13/93
5,227,372                       07/489,680                       07/13/93
5,227,375                       07/477,024                       07/13/93
5,227,378                       07/848,564                       07/13/93
5,227,379                       07/803,200                       07/13/93
5,227,381                       07/928,097                       07/13/93
5,227,385                       07/850,624                       07/13/93
5,227,386                       07/673,544                       07/13/93
5,227,391                       07/866,596                       07/13/93
5,227,408                       07/712,876                       07/13/93
5,227,416                       07/813,236                       07/13/93
5,227,418                       07/992,520                       07/13/93
5,227,421                       07/970,540                       07/13/93
5,227,423                       07/910,672                       07/13/93
5,227,430                       07/692,497                       07/13/93
5,227,433                       07/840,253                       07/13/93
5,227,437                       07/775,381                       07/13/93
5,227,441                       07/945,554                       07/13/93
5,227,446                       07/649,063                       07/13/93
5,227,448                       07/888,080                       07/13/93
5,227,451                       07/778,083                       07/13/93
5,227,452                       07/906,088                       07/13/93
5,227,454                       07/764,858                       07/13/93
5,227,455                       07/939,440                       07/13/93
5,227,461                       07/954,475                       07/13/93
5,227,464                       07/833,203                       07/13/93
5,227,472                       07/485,531                       07/13/93
5,227,479                       07/610,690                       07/13/93
5,227,480                       07/779,233                       07/13/93
5,227,482                       07/870,316                       07/13/93
5,227,485                       07/717,202                       07/13/93
5,227,488                       07/590,393                       07/13/93
5,227,502                       07/922,424                       07/13/93
5,227,503                       07/853,377                       07/13/93
5,227,504                       07/882,898                       07/13/93
5,227,507                       07/498,061                       07/13/93
5,227,524                       07/780,812                       07/13/93
5,227,528                       07/876,638                       07/13/93
5,227,536                       07/922,651                       07/13/93
5,227,538                       07/792,227                       07/13/93
5,227,546                       07/940,207                       07/13/93
5,227,554                       07/799,797                       07/13/93
5,227,557                       07/753,168                       07/13/93
5,227,565                       07/906,066                       07/13/93
5,227,568                       07/717,909                       07/13/93
5,227,571                       07/802,369                       07/13/93
5,227,572                       07/756,794                       07/13/93
5,227,581                       07/799,345                       07/13/93
5,227,586                       07/772,208                       07/13/93
5,227,602                       07/849,405                       07/13/93
5,227,609                       07/796,428                       07/13/93
5,227,618                       07/842,965                       07/13/93
5,227,619                       07/834,024                       07/13/93
5,227,625                       07/946,511                       07/13/93
5,227,626                       07/828,349                       07/13/93
5,227,627                       07/729,111                       07/13/93
5,227,636                       07/760,722                       07/13/93
5,227,638                       07/737,795                       07/13/93
5,227,639                       07/957,460                       07/13/93
5,227,648                       07/801,041                       07/13/93
5,227,660                       07/648,309                       07/13/93
5,227,662                       07/959,474                       07/13/93
5,227,667                       07/807,651                       07/13/93
5,227,668                       07/447,072                       07/13/93
5,227,676                       07/760,534                       07/13/93
5,227,678                       07/703,632                       07/13/93
5,227,689                       07/564,054                       07/13/93
5,227,696                       07/874,862                       07/13/93
5,227,699                       07/746,355                       07/13/93
5,227,701                       07/195,198                       07/13/93
5,227,703                       07/871,929                       07/13/93
5,227,711                       07/838,568                       07/13/93
5,227,713                       07/883,474                       07/13/93
5,227,716                       07/834,027                       07/13/93
5,227,730                       07/944,524                       07/13/93
5,227,743                       07/791,387                       07/13/93
5,227,744                       07/730,663                       07/13/93
5,227,754                       07/337,720                       07/13/93
5,227,769                       07/704,515                       07/13/93
5,227,780                       07/793,481                       07/13/93
5,227,793                       07/839,197                       07/13/93
5,227,798                       07/904,624                       07/13/93
5,227,800                       07/764,656                       07/13/93
5,227,804                       07/742,076                       07/13/93
5,227,817                       07/821,372                       07/13/93
5,227,818                       07/769,158                       07/13/93
5,227,821                       07/925,395                       07/13/93
5,227,829                       07/791,548                       07/13/93
5,227,845                       07/773,798                       07/13/93
5,227,846                       07/664,857                       07/13/93
5,227,856                       07/848,692                       07/13/93
5,227,863                       07/564,148                       07/13/93
5,227,888                       07/652,002                       07/13/93
5,227,890                       07/786,031                       07/13/93
5,227,893                       07/606,673                       07/13/93
5,227,895                       07/563,435                       07/13/93
5,227,909                       07/767,462                       07/13/93
5,227,910                       07/859,025                       07/13/93
5,227,920                       07/967,132                       07/13/93
5,227,926                       07/619,990                       07/13/93
5,227,934                       07/635,551                       07/13/93
5,227,944                       07/783,321                       07/13/93
5,227,947                       07/758,631                       07/13/93
5,227,953                       07/780,661                       07/13/93
5,227,956                       07/810,046                       07/13/93
5,227,957                       07/883,205                       07/13/93
5,227,961                       07/811,331                       07/13/93
5,227,969                       07/707,204                       07/13/93
5,227,971                       07/366,668                       07/13/93
5,227,975                       07/599,223                       07/13/93
5,227,982                       07/661,932                       07/13/93
5,227,995                       07/554,635                       07/13/93
5,227,998                       07/604,730                       07/13/93
5,228,005                       07/863,984                       07/13/93
5,228,006                       07/916,353                       07/13/93
5,228,007                       07/854,887                       07/13/93
5,228,012                       07/961,652                       07/13/93
5,228,013                       07/819,443                       07/13/93
5,228,018                       07/731,858                       07/13/93
5,228,026                       07/573,307                       07/13/93
5,228,031                       07/656,899                       07/13/93
5,228,055                       07/829,469                       07/13/93
5,228,080                       07/542,710                       07/13/93
5,228,094                       07/814,605                       07/13/93
5,228,103                       07/929,924                       07/13/93
5,228,110                       07/860,199                       07/13/93
5,228,122                       07/846,763                       07/13/93
5,228,124                       07/800,729                       07/13/93
5,228,138                       07/644,922                       07/13/93

                    PATENTS WHICH EXPIRED ON July 15, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                            Serial                            Issue
Number                            Number                             Date

5,647,069                       08/425,378                       07/15/97
5,647,070                       08/571,464                       07/15/97
5,647,073                       08/592,973                       07/15/97
5,647,085                       08/525,770                       07/15/97
5,647,086                       08/735,008                       07/15/97
5,647,089                       08/489,079                       07/15/97
5,647,096                       08/547,287                       07/15/97
5,647,098                       08/455,527                       07/15/97
5,647,130                       08/582,370                       07/15/97
5,647,134                       08/496,890                       07/15/97
5,647,140                       08/606,094                       07/15/97
5,647,146                       08/504,576                       07/15/97
5,647,147                       08/251,616                       07/15/97
5,647,149                       08/201,779                       07/15/97
5,647,153                       08/581,066                       07/15/97
5,647,155                       08/562,073                       07/15/97
5,647,156                       08/488,605                       07/15/97
5,647,163                       08/426,270                       07/15/97
5,647,165                       07/903,601                       07/15/97
5,647,171                       08/578,415                       07/15/97
5,647,174                       08/298,227                       07/15/97
5,647,177                       08/578,279                       07/15/97
5,647,205                       08/530,209                       07/15/97
5,647,207                       08/492,144                       07/15/97
5,647,209                       08/490,697                       07/15/97
5,647,210                       08/500,965                       07/15/97
5,647,215                       08/554,684                       07/15/97
5,647,218                       08/645,715                       07/15/97
5,647,223                       08/564,128                       07/15/97
5,647,225                       08/490,224                       07/15/97
5,647,230                       08/587,100                       07/15/97
5,647,231                       08/534,002                       07/15/97
5,647,233                       08/533,258                       07/15/97
5,647,244                       08/464,818                       07/15/97
5,647,257                       08/319,507                       07/15/97
5,647,260                       08/536,801                       07/15/97
5,647,261                       08/378,195                       07/15/97
5,647,262                       08/396,338                       07/15/97
5,647,264                       08/434,857                       07/15/97
5,647,265                       08/084,057                       07/15/97
5,647,266                       08/568,565                       07/15/97
5,647,269                       08/325,982                       07/15/97
5,647,272                       08/533,723                       07/15/97
5,647,278                       08/645,876                       07/15/97
5,647,280                       08/442,418                       07/15/97
5,647,281                       08/524,063                       07/15/97
5,647,284                       08/438,223                       07/15/97
5,647,285                       08/585,156                       07/15/97
5,647,289                       08/643,183                       07/15/97
5,647,292                       08/397,492                       07/15/97
5,647,296                       08/632,433                       07/15/97
5,647,298                       08/493,363                       07/15/97
5,647,300                       08/551,190                       07/15/97
5,647,301                       08/507,271                       07/15/97
5,647,320                       08/489,820                       07/15/97
5,647,321                       08/606,281                       07/15/97
5,647,323                       08/646,908                       07/15/97
5,647,326                       08/529,764                       07/15/97
5,647,336                       08/606,917                       07/15/97
5,647,339                       08/535,467                       07/15/97
5,647,341                       08/205,930                       07/15/97
5,647,342                       08/230,607                       07/15/97
5,647,343                       08/428,173                       07/15/97
5,647,344                       08/662,316                       07/15/97
5,647,358                       08/618,577                       07/15/97
5,647,375                       08/388,849                       07/15/97
5,647,386                       08/317,382                       07/15/97
5,647,388                       08/556,270                       07/15/97
5,647,389                       08/382,574                       07/15/97
5,647,403                       08/416,068                       07/15/97
5,647,406                       08/387,837                       07/15/97
5,647,407                       08/471,824                       07/15/97
5,647,410                       08/211,001                       07/15/97
5,647,413                       08/600,906                       07/15/97
5,647,431                       08/448,307                       07/15/97
5,647,433                       08/352,808                       07/15/97
5,647,449                       08/592,217                       07/15/97
5,647,452                       08/529,079                       07/15/97
5,647,453                       08/373,558                       07/15/97
5,647,454                       08/492,208                       07/15/97
5,647,456                       08/637,946                       07/15/97
5,647,457                       08/524,550                       07/15/97
5,647,458                       08/573,443                       07/15/97
5,647,473                       08/386,959                       07/15/97
5,647,482                       08/351,272                       07/15/97
5,647,484                       08/658,854                       07/15/97
5,647,488                       08/685,807                       07/15/97
5,647,490                       08/330,561                       07/15/97
5,647,493                       08/471,407                       07/15/97
5,647,495                       07/750,930                       07/15/97
5,647,498                       08/571,315                       07/15/97
5,647,499                       08/618,169                       07/15/97
5,647,515                       08/536,539                       07/15/97
5,647,517                       08/505,401                       07/15/97
5,647,518                       08/263,484                       07/15/97
5,647,524                       08/384,896                       07/15/97
5,647,529                       08/402,294                       07/15/97
5,647,544                       08/610,628                       07/15/97
5,647,551                       08/544,974                       07/15/97
5,647,554                       08/343,789                       07/15/97
5,647,557                       08/443,481                       07/15/97
5,647,568                       08/345,640                       07/15/97
5,647,593                       08/669,535                       07/15/97
5,647,595                       08/625,195                       07/15/97
5,647,599                       08/560,571                       07/15/97
5,647,601                       08/383,875                       07/15/97
5,647,605                       08/431,430                       07/15/97
5,647,606                       07/749,974                       07/15/97
5,647,616                       08/309,241                       07/15/97
5,647,621                       08/599,374                       07/15/97
5,647,624                       08/686,117                       07/15/97
5,647,625                       08/532,362                       07/15/97
5,647,630                       08/499,816                       07/15/97
5,647,632                       08/543,637                       07/15/97
5,647,633                       08/657,525                       07/15/97
5,647,637                       08/633,158                       07/15/97
5,647,639                       08/710,837                       07/15/97
5,647,643                       08/397,413                       07/15/97
5,647,646                       08/520,824                       07/15/97
5,647,649                       08/522,079                       07/15/97
5,647,654                       08/640,837                       07/15/97
5,647,680                       08/749,866                       07/15/97
5,647,681                       08/666,597                       07/15/97
5,647,682                       08/400,618                       07/15/97
5,647,686                       08/657,863                       07/15/97
5,647,687                       08/553,983                       07/15/97
5,647,697                       08/507,191                       07/15/97
5,647,702                       08/380,077                       07/15/97
5,647,704                       08/260,544                       07/15/97
5,647,709                       08/573,249                       07/15/97
5,647,710                       08/443,592                       07/15/97
5,647,716                       08/571,738                       07/15/97
5,647,721                       08/478,517                       07/15/97
5,647,722                       08/616,758                       07/15/97
5,647,731                       08/431,030                       07/15/97
5,647,741                       08/353,988                       07/15/97
5,647,743                       08/454,280                       07/15/97
5,647,749                       08/308,802                       07/15/97
5,647,750                       08/565,350                       07/15/97
5,647,755                       08/602,954                       07/15/97
5,647,759                       08/645,813                       07/15/97
5,647,771                       08/433,216                       07/15/97
5,647,783                       08/675,041                       07/15/97
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