United States Patent and Trademark Office OG Notices: 11 June 2002

                        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 April 17, 2002
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                             Serial                            Issue
Number                             Number                             Date

4,916,752                        07/331,753                       04/17/90
4,916,775                        07/122,014                       04/17/90
4,916,784                        07/204,123                       04/17/90
4,916,800                        07/375,995                       04/17/90
4,916,804                        07/304,271                       04/17/90
4,916,809                        07/232,942                       04/17/90
4,916,811                        06/690,174                       04/17/90
4,916,812                        07/376,209                       04/17/90
4,916,830                        06/936,283                       04/17/90
4,916,861                        07/318,564                       04/17/90
4,916,864                        07/347,680                       04/17/90
4,916,867                        07/286,621                       04/17/90
4,916,877                        07/375,567                       04/17/90
4,916,878                        07/329,249                       04/17/90
4,916,882                        07/387,843                       04/17/90
4,916,883                        07/171,342                       04/17/90
4,916,887                        07/393,274                       04/17/90
4,916,900                        07/132,414                       04/17/90
4,916,904                        07/405,054                       04/17/90
4,916,905                        07/284,379                       04/17/90
4,916,925                        07/264,813                       04/17/90
4,916,928                        07/318,967                       04/17/90
4,916,935                        07/299,690                       04/17/90
4,916,949                        07/346,633                       04/17/90
4,916,962                        07/346,309                       04/17/90
4,916,968                        07/402,791                       04/17/90
4,916,989                        07/266,773                       04/17/90
4,916,990                        07/280,567                       04/17/90
4,917,002                        07/281,362                       04/17/90
4,917,006                        07/197,716                       04/17/90
4,917,013                        07/239,181                       04/17/90
4,917,017                        07/200,031                       04/17/90
4,917,018                        07/219,935                       04/17/90
4,917,019                        07/353,167                       04/17/90
4,917,023                        07/218,565                       04/17/90
4,917,027                        07/335,231                       04/17/90
4,917,032                        07/293,007                       04/17/90
4,917,033                        07/175,490                       04/17/90
4,917,050                        07/217,835                       04/17/90
4,917,059                        07/254,815                       04/17/90
4,917,074                        07/331,721                       04/17/90
4,917,075                        07/332,732                       04/17/90
4,917,076                        07/206,349                       04/17/90
4,917,085                        07/405,413                       04/17/90
4,917,092                        07/218,722                       04/17/90
4,917,107                        06/845,959                       04/17/90
4,917,112                        07/234,876                       04/17/90
4,917,113                        07/006,986                       04/17/90
4,917,119                        07/277,731                       04/17/90
4,917,125                        07/331,984                       04/17/90
4,917,126                        06/747,082                       04/17/90
4,917,128                        07/136,261                       04/17/90
4,917,134                        07/391,976                       04/17/90
4,917,136                        07/198,079                       04/17/90
4,917,144                        07/307,424                       04/17/90
4,917,151                        07/300,778                       04/17/90
4,917,155                        07/018,463                       04/17/90
4,917,157                        07/316,002                       04/17/90
4,917,167                        07/328,016                       04/17/90
4,917,174                        07/223,584                       04/17/90
4,917,175                        07/302,624                       04/17/90
4,917,176                        07/272,256                       04/17/90
4,917,179                        07/407,679                       04/17/90
4,917,183                        07/253,967                       04/17/90
4,917,202                        07/286,416                       04/17/90
4,917,205                        07/170,868                       04/17/90
4,917,206                        06/948,168                       04/17/90
4,917,211                        07/287,735                       04/17/90
4,917,212                        07/284,898                       04/17/90
4,917,215                        07/235,076                       04/17/90
4,917,220                        07/205,373                       04/17/90
4,917,222                        07/259,835                       04/17/90
4,917,229                        07/288,867                       04/17/90
4,917,236                        07/233,416                       04/17/90
4,917,240                        07/294,656                       04/17/90
4,917,248                        07/296,437                       04/17/90
4,917,251                        07/206,311                       04/17/90
4,917,264                        07/291,005                       04/17/90
4,917,266                        07/305,624                       04/17/90
4,917,274                        06/652,750                       04/17/90
4,917,282                        07/154,222                       04/17/90
4,917,295                        07/347,664                       04/17/90
4,917,299                        07/167,154                       04/17/90
4,917,301                        07/271,623                       04/17/90
4,917,303                        07/249,374                       04/17/90
4,917,304                        07/290,879                       04/17/90
4,917,330                        07/319,323                       04/17/90
4,917,337                        06/762,064                       04/17/90
4,917,346                        07/163,821                       04/17/90
4,917,350                        07/381,607                       04/17/90
4,917,352                        07/191,137                       04/17/90
4,917,367                        07/237,542                       04/17/90
4,917,374                        07/309,594                       04/17/90
4,917,384                        07/372,794                       04/17/90
4,917,395                        07/289,167                       04/17/90
4,917,405                        07/345,127                       04/17/90
4,917,411                        07/282,765                       04/17/90
4,917,416                        07/247,157                       04/17/90
4,917,423                        07/396,475                       04/17/90
4,917,433                        07/237,321                       04/17/90
4,917,435                        07/355,955                       04/17/90
4,917,439                        07/200,648                       04/17/90
4,917,440                        07/305,644                       04/17/90
4,917,441                        07/215,769                       04/17/90
4,917,444                        07/309,369                       04/17/90
4,917,452                        07/341,434                       04/17/90
4,917,473                        07/254,096                       04/17/90
4,917,475                        07/022,736                       04/17/90
4,917,479                        07/252,116                       04/17/90
4,917,481                        07/202,819                       04/17/90
4,917,489                        07/278,713                       04/17/90
4,917,491                        07/219,765                       04/17/90
4,917,492                        07/280,763                       04/17/90
4,917,493                        07/205,888                       04/17/90
4,917,494                        07/243,333                       04/17/90
4,917,495                        07/286,785                       04/17/90
4,917,496                        07/217,337                       04/17/90
4,917,503                        07/103,418                       04/17/90
4,917,508                        07/245,671                       04/17/90
4,917,510                        07/220,481                       04/17/90
4,917,523                        07/234,454                       04/17/90
4,917,531                        07/363,637                       04/17/90
4,917,534                        07/221,058                       04/17/90
4,917,540                        07/268,237                       04/17/90
4,917,545                        07/030,841                       04/17/90
4,917,551                        07/244,010                       04/17/90
4,917,574                        07/381,971                       04/17/90
4,917,575                        07/261,056                       04/17/90
4,917,576                        07/168,429                       04/17/90
4,917,577                        07/301,443                       04/17/90
4,917,578                        07/325,922                       04/17/90
4,917,585                        07/323,500                       04/17/90
4,917,586                        07/275,202                       04/17/90
4,917,596                        07/385,590                       04/17/90
4,917,607                        07/250,698                       04/17/90
4,917,613                        07/267,028                       04/17/90
4,917,619                        07/282,626                       04/17/90
4,917,629                        07/312,213                       04/17/90
4,917,631                        07/279,381                       04/17/90
4,917,632                        07/351,787                       04/17/90
4,917,635                        07/383,486                       04/17/90
4,917,642                        07/176,752                       04/17/90
4,917,647                        07/315,594                       04/17/90
4,917,656                        07/380,952                       04/17/90
4,917,666                        07/270,557                       04/17/90
4,917,669                        07/308,137                       04/17/90
4,917,681                        07/232,140                       04/17/90
4,917,685                        06/863,885                       04/17/90
4,917,701                        07/242,524                       04/17/90
4,917,708                        07/168,186                       04/17/90
4,917,711                        07/127,196                       04/17/90
4,917,714                        07/281,384                       04/17/90
4,917,717                        06/930,757                       04/17/90
4,917,721                        07/010,927                       04/17/90
4,917,727                        07/279,252                       04/17/90
4,917,733                        07/272,134                       04/17/90
4,917,742                        07/311,565                       04/17/90
4,917,748                        07/145,359                       04/17/90
4,917,750                        07/146,005                       04/17/90
4,917,759                        07/339,451                       04/17/90
4,917,771                        07/160,314                       04/17/90
4,917,785                        07/078,655                       04/17/90
4,917,790                        07/335,643                       04/17/90
4,917,795                        07/195,603                       04/17/90
4,917,799                        07/263,757                       04/17/90
4,917,801                        07/117,396                       04/17/90
4,917,809                        07/115,287                       04/17/90
4,917,815                        07/205,133                       04/17/90
4,917,817                        07/222,426                       04/17/90
4,917,831                        07/330,175                       04/17/90
4,917,832                        07/310,061                       04/17/90
4,917,841                        07/254,732                       04/17/90
4,917,845                        07/285,928                       04/17/90
4,917,847                        07/338,880                       04/17/90
4,917,849                        07/112,586                       04/17/90
4,917,858                        07/387,925                       04/17/90
4,917,875                        07/214,915                       04/17/90
4,917,876                        07/195,474                       04/17/90
4,917,879                        07/354,491                       04/17/90
4,917,880                        07/204,718                       04/17/90
4,917,882                        07/324,564                       04/17/90
4,917,883                        07/324,306                       04/17/90
4,917,898                        07/200,945                       04/17/90
4,917,907                        07/085,373                       04/17/90
4,917,914                        07/278,180                       04/17/90
4,917,923                        07/209,720                       04/17/90
4,917,926                        07/196,510                       04/17/90
4,917,935                        06/883,061                       04/17/90
4,917,940                        07/176,547                       04/17/90
4,917,949                        07/181,561                       04/17/90
4,917,955                        07/072,302                       04/17/90
4,917,961                        07/393,534                       04/17/90
4,917,965                        07/315,825                       04/17/90
4,917,970                        07/150,921                       04/17/90
4,917,973                        07/381,262                       04/17/90
4,917,996                        07/185,081                       04/17/90
4,918,007                        06/917,066                       04/17/90
4,918,008                        06/918,253                       04/17/90
4,918,013                        07/258,391                       04/17/90
4,918,016                        06/436,423                       04/17/90
4,918,017                        07/305,688                       04/17/90
4,918,021                        07/295,746                       04/17/90
4,918,033                        07/239,569                       04/17/90
4,918,034                        07/168,358                       04/17/90
4,918,041                        07/247,225                       04/17/90
4,918,069                        07/290,343                       04/17/90
4,918,070                        07/161,100                       04/17/90
4,918,076                        07/314,345                       04/17/90
4,918,081                        07/210,468                       04/17/90
4,918,095                        07/135,041                       04/17/90
4,918,097                        07/317,387                       04/17/90
4,918,108                        07/068,036                       04/17/90
4,918,111                        07/232,736                       04/17/90
4,918,114                        07/283,599                       04/17/90
4,918,117                        07/256,433                       04/17/90
4,918,119                        07/230,639                       04/17/90
4,918,122                        07/073,787                       04/17/90
4,918,130                        07/282,062                       04/17/90
4,918,131                        07/230,543                       04/17/90
4,918,136                        07/327,021                       04/17/90
4,918,138                        07/310,578                       04/17/90
4,918,146                        07/341,007                       04/17/90
4,918,152                        07/203,918                       04/17/90
4,918,163                        06/855,878                       04/17/90
4,918,164                        07/116,802                       04/17/90
4,918,168                        07/124,500                       04/17/90
4,918,184                        07/137,089                       04/17/90
4,918,190                        07/079,821                       04/17/90
4,918,206                        07/245,294                       04/17/90
4,918,210                        07/004,734                       04/17/90
4,918,231                        07/284,595                       04/17/90
4,918,236                        06/871,989                       04/17/90
4,918,243                        07/263,812                       04/17/90
4,918,244                        07/045,631                       04/17/90
4,918,249                        07/338,916                       04/17/90
4,918,254                        07/306,512                       04/17/90
4,918,255                        07/219,527                       04/17/90
4,918,263                        07/383,254                       04/17/90
4,918,277                        07/215,628                       04/17/90
4,918,278                        07/042,958                       04/17/90
4,918,296                        07/162,416                       04/17/90
4,918,307                        07/213,199                       04/17/90
4,918,322                        07/254,305                       04/17/90
4,918,343                        07/257,476                       04/17/90
4,918,345                        07/167,685                       04/17/90
4,918,348                        07/284,312                       04/17/90
4,918,367                        07/306,167                       04/17/90
4,918,372                        07/246,146                       04/17/90
4,918,376                        07/320,290                       04/17/90
4,918,382                        07/325,845                       04/17/90
4,918,385                        07/307,727                       04/17/90
4,918,392                        07/293,361                       04/17/90
4,918,393                        07/272,537                       04/17/90
4,918,404                        07/248,004                       04/17/90
4,918,408                        07/284,524                       04/17/90
4,918,418                        07/228,137                       04/17/90
4,918,425                        07/223,954                       04/17/90
4,918,433                        07/410,409                       04/17/90
4,918,435                        07/281,901                       04/17/90
4,918,438                        07/054,915                       04/17/90
4,918,439                        07/254,518                       04/17/90
4,918,446                        07/251,487                       04/17/90
4,918,451                        07/265,223                       04/17/90
4,918,461                        07/344,670                       04/17/90
4,918,468                        07/352,395                       04/17/90
4,918,469                        07/121,615                       04/17/90
4,918,472                        07/369,322                       04/17/90
4,918,489                        07/356,130                       04/17/90
4,918,500                        07/211,931                       04/17/90
4,918,504                        07/222,844                       04/17/90
4,918,518                        07/209,452                       04/17/90
4,918,520                        07/185,894                       04/17/90
4,918,524                        07/323,488                       04/17/90
4,918,527                        07/278,678                       04/17/90
4,918,530                        07/398,540                       04/17/90
4,918,539                        07/182,809                       04/17/90
4,918,544                        07/207,984                       04/17/90
4,918,547                        07/207,671                       04/17/90
4,918,555                        07/223,843                       04/17/90
4,918,557                        07/220,537                       04/17/90
4,918,561                        07/254,224                       04/17/90
4,918,563                        07/316,532                       04/17/90
4,918,568                        07/184,762                       04/17/90
4,918,571                        07/183,305                       04/17/90
4,918,580                        07/267,470                       04/17/90
4,918,582                        07/167,561                       04/17/90
4,918,585                        07/142,371                       04/17/90
4,918,600                        07/226,721                       04/17/90
4,918,602                        07/073,815                       04/17/90
4,918,616                        06/734,679                       04/17/90
4,918,622                        07/272,568                       04/17/90
4,918,625                        07/382,046                       04/17/90
4,918,636                        07/289,268                       04/17/90
4,918,649                        07/218,258                       04/17/90
4,918,662                        07/174,469                       04/17/90
4,918,669                        07/385,045                       04/17/90
4,918,679                        07/173,914                       04/17/90
4,918,684                        07/249,445                       04/17/90
4,918,689                        07/257,428                       04/17/90
4,918,704                        07/295,649                       04/17/90
4,918,710                        07/235,593                       04/17/90
4,918,718                        07/212,549                       04/17/90
4,918,728                        07/401,486                       04/17/90
4,918,729                        07/291,934                       04/17/90
4,918,732                        07/357,688                       04/17/90
4,918,734                        07/052,395                       04/17/90
4,918,745                        07/106,571                       04/17/90
4,918,746                        07/162,819                       04/17/90
4,918,747                        07/289,624                       04/17/90

                    PATENTS WHICH EXPIRED ON April 12, 2002
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                             Serial                            Issue
Number                             Number                             Date

5,301,377                        08/093,482                       04/12/94
5,301,384                        07/769,859                       04/12/94
5,301,387                        07/972,923                       04/12/94
5,301,389                        08/051,697                       04/12/94
5,301,405                        08/002,967                       04/12/94
5,301,415                        08/080,995                       04/12/94
5,301,418                        07/861,748                       04/12/94
5,301,420                        08/086,060                       04/12/94
5,301,421                        08/034,724                       04/12/94
5,301,427                        08/064,770                       04/12/94
5,301,431                        07/983,880                       04/12/94
5,301,435                        07/333,998                       04/12/94
5,301,437                        07/890,127                       04/12/94
5,301,441                        08/016,039                       04/12/94
5,301,452                        07/938,390                       04/12/94
5,301,455                        07/864,403                       04/12/94
5,301,460                        07/684,242                       04/12/94
5,301,462                        07/895,270                       04/12/94
5,301,463                        08/011,806                       04/12/94
5,301,472                        08/040,388                       04/12/94
5,301,480                        07/791,239                       04/12/94
5,301,491                        07/835,346                       04/12/94
5,301,493                        07/951,240                       04/12/94
5,301,494                        07/920,133                       04/12/94
5,301,513                        08/057,912                       04/12/94
5,301,519                        07/981,232                       04/12/94
5,301,521                        07/946,625                       04/12/94
5,301,523                        07/936,012                       04/12/94
5,301,524                        08/049,034                       04/12/94
5,301,528                        07/959,827                       04/12/94
5,301,529                        07/968,490                       04/12/94
5,301,530                        08/090,622                       04/12/94
5,301,543                        07/985,816                       04/12/94
5,301,546                        07/834,363                       04/12/94
5,301,550                        08/089,918                       04/12/94
5,301,556                        07/993,909                       04/12/94
5,301,558                        07/955,946                       04/12/94
5,301,566                        08/110,181                       04/12/94
5,301,567                        07/948,556                       04/12/94
5,301,579                        08/084,318                       04/12/94
5,301,592                        07/715,626                       04/12/94
5,301,594                        07/998,487                       04/12/94
5,301,595                        07/904,281                       04/12/94
5,301,599                        07/825,051                       04/12/94
5,301,603                        07/784,670                       04/12/94
5,301,605                        08/051,422                       04/12/94
5,301,606                        08/033,149                       04/12/94
5,301,613                        07/944,633                       04/12/94
5,301,619                        07/981,730                       04/12/94
5,301,621                        08/062,790                       04/12/94
5,301,624                        08/021,449                       04/12/94
5,301,631                        08/050,867                       04/12/94
5,301,638                        08/097,875                       04/12/94
5,301,640                        08/065,378                       04/12/94
5,301,642                        08/084,953                       04/12/94
5,301,646                        07/994,319                       04/12/94
5,301,649                        07/989,229                       04/12/94
5,301,657                        07/932,957                       04/12/94
5,301,665                        07/966,718                       04/12/94
5,301,672                        07/977,053                       04/12/94
5,301,680                        07/988,433                       04/12/94
5,301,689                        08/028,769                       04/12/94
5,301,690                        07/917,349                       04/12/94
5,301,696                        08/001,260                       04/12/94
5,301,701                        07/921,717                       04/12/94
5,301,702                        07/951,786                       04/12/94
5,301,703                        08/086,613                       04/12/94
5,301,706                        07/811,309                       04/12/94
5,301,712                        08/090,402                       04/12/94
5,301,719                        07/963,222                       04/12/94
5,301,720                        07/888,138                       04/12/94
5,301,721                        08/046,362                       04/12/94
5,301,729                        07/919,748                       04/12/94
5,301,731                        08/032,505                       04/12/94
5,301,734                        08/018,005                       04/12/94
5,301,743                        07/945,629                       04/12/94
5,301,758                        07/812,915                       04/12/94
5,301,765                        08/061,012                       04/12/94
5,301,769                        08/007,450                       04/12/94
5,301,773                        07/965,477                       04/12/94
5,301,774                        07/801,020                       04/12/94
5,301,776                        07/971,339                       04/12/94
5,301,783                        07/903,403                       04/12/94
5,301,787                        07/906,569                       04/12/94
5,301,788                        07/964,038                       04/12/94
5,301,792                        07/979,268                       04/12/94
5,301,803                        08/003,362                       04/12/94
5,301,808                        07/975,642                       04/12/94
5,301,810                        07/954,170                       04/12/94
5,301,815                        07/913,676                       04/12/94
5,301,820                        08/062,177                       04/12/94
5,301,832                        08/049,978                       04/12/94
5,301,833                        08/010,785                       04/12/94
5,301,834                        08/006,503                       04/12/94
5,301,842                        07/839,428                       04/12/94
5,301,849                        07/777,240                       04/12/94
5,301,855                        07/771,035                       04/12/94
5,301,858                        07/856,760                       04/12/94
5,301,862                        07/956,613                       04/12/94
5,301,863                        07/971,308                       04/12/94
5,301,880                        08/011,507                       04/12/94
5,301,895                        08/056,743                       04/12/94
5,301,896                        07/924,910                       04/12/94
5,301,903                        08/043,545                       04/12/94
5,301,908                        07/941,541                       04/12/94
5,301,911                        07/954,388                       04/12/94
5,301,914                        08/021,980                       04/12/94
5,301,929                        07/978,633                       04/12/94
5,301,931                        07/913,453                       04/12/94
5,301,941                        07/882,561                       04/12/94
5,301,946                        07/999,250                       04/12/94
5,301,948                        08/052,103                       04/12/94
5,301,960                        07/879,144                       04/12/94
5,301,961                        07/989,768                       04/12/94
5,301,968                        07/782,873                       04/12/94
5,301,972                        08/039,800                       04/12/94
5,301,976                        08/054,439                       04/12/94
5,301,984                        08/004,323                       04/12/94
5,301,990                        08/089,368                       04/12/94
5,301,993                        07/942,312                       04/12/94
5,301,997                        08/020,263                       04/12/94
5,302,002                        07/764,828                       04/12/94
5,302,007                        07/983,468                       04/12/94
5,302,011                        07/859,495                       04/12/94
5,302,029                        08/039,183                       04/12/94
5,302,032                        08/083,169                       04/12/94
5,302,036                        07/930,849                       04/12/94
5,302,040                        07/990,021                       04/12/94
5,302,041                        07/643,702                       04/12/94
5,302,042                        07/985,121                       04/12/94
5,302,049                        07/640,876                       04/12/94
5,302,057                        08/039,776                       04/12/94
5,302,069                        07/953,102                       04/12/94
5,302,073                        07/932,659                       04/12/94
5,302,077                        08/021,165                       04/12/94
5,302,078                        07/831,511                       04/12/94
5,302,091                        08/010,531                       04/12/94
5,302,094                        07/940,557                       04/12/94
5,302,105                        07/882,326                       04/12/94
5,302,118                        08/014,767                       04/12/94
5,302,125                        07/964,747                       04/12/94
5,302,126                        07/854,436                       04/12/94
5,302,128                        07/929,258                       04/12/94
5,302,132                        07/863,687                       04/12/94
5,302,134                        08/125,389                       04/12/94
5,302,141                        07/979,847                       04/12/94
5,302,142                        08/099,647                       04/12/94
5,302,149                        07/965,242                       04/12/94
5,302,152                        07/741,593                       04/12/94
5,302,155                        07/949,828                       04/12/94
5,302,161                        07/835,186                       04/12/94
5,302,164                        08/072,116                       04/12/94
5,302,166                        07/839,131                       04/12/94
5,302,171                        07/851,598                       04/12/94
5,302,179                        07/757,827                       04/12/94
5,302,181                        07/868,191                       04/12/94
5,302,182                        07/755,074                       04/12/94
5,302,188                        08/017,864                       04/12/94
5,302,190                        07/894,936                       04/12/94
5,302,191                        07/938,854                       04/12/94
5,302,204                        07/885,134                       04/12/94
5,302,212                        07/658,270                       04/12/94
5,302,224                        07/900,292                       04/12/94
5,302,225                        07/607,520                       04/12/94
5,302,235                        07/719,021                       04/12/94
5,302,242                        07/871,366                       04/12/94
5,302,246                        08/025,386                       04/12/94
5,302,247                        07/970,403                       04/12/94
5,302,266                        07/951,924                       04/12/94
5,302,268                        08/027,511                       04/12/94
5,302,274                        07/915,263                       04/12/94
5,302,281                        07/909,571                       04/12/94
5,302,285                        08/128,005                       04/12/94
5,302,286                        07/855,351                       04/12/94
5,302,287                        07/943,819                       04/12/94
5,302,289                        07/943,938                       04/12/94
5,302,290                        08/024,705                       04/12/94
5,302,293                        07/912,871                       04/12/94
5,302,297                        08/023,277                       04/12/94
5,302,305                        07/310,146                       04/12/94
5,302,308                        07/934,835                       04/12/94
5,302,328                        06/527,642                       04/12/94
5,302,329                        07/775,946                       04/12/94
5,302,331                        07/982,968                       04/12/94
5,302,335                        08/033,733                       04/12/94
5,302,336                        07/810,690                       04/12/94
5,302,337                        08/076,468                       04/12/94
5,302,338                        08/018,922                       04/12/94
5,302,345                        07/117,922                       04/12/94
5,302,354                        07/903,928                       04/12/94
5,302,363                        08/055,345                       04/12/94
5,302,364                        07/996,638                       04/12/94
5,302,365                        07/975,793                       04/12/94
5,302,367                        07/932,390                       04/12/94
5,302,370                        07/572,140                       04/12/94
5,302,371                        07/926,621                       04/12/94
5,302,373                        08/075,216                       04/12/94
5,302,374                        08/050,565                       04/12/94
5,302,375                        07/978,840                       04/12/94
5,302,379                        08/026,706                       04/12/94
5,302,380                        07/895,065                       04/12/94
5,302,382                        08/071,730                       04/12/94
5,302,385                        07/569,804                       04/12/94
5,302,392                        07/570,656                       04/12/94
5,302,393                        07/910,809                       04/12/94
5,302,418                        07/870,526                       04/12/94
5,302,420                        08/088,533                       04/12/94
5,302,421                        08/087,902                       04/12/94
5,302,422                        07/975,999                       04/12/94
5,302,425                        07/925,537                       04/12/94
5,302,431                        07/817,853                       04/12/94
5,302,434                        07/926,986                       04/12/94
5,302,440                        07/897,216                       04/12/94
5,302,453                        08/068,100                       04/12/94
5,302,458                        08/086,314                       04/12/94
5,302,460                        07/731,484                       04/12/94
5,302,465                        07/970,669                       04/12/94
5,302,468                        07/921,128                       04/12/94
5,302,475                        07/791,583                       04/12/94
5,302,482                        07/652,572                       04/12/94
5,302,486                        07/870,375                       04/12/94
5,302,487                        07/898,345                       04/12/94
5,302,489                        07/784,355                       04/12/94
5,302,490                        08/043,153                       04/12/94
5,302,491                        08/093,446                       04/12/94
5,302,493                        07/906,906                       04/12/94
5,302,504                        07/760,489                       04/12/94
5,302,506                        07/901,130                       04/12/94
5,302,520                        08/037,577                       04/12/94
5,302,522                        08/111,888                       04/12/94
5,302,526                        08/005,322                       04/12/94
5,302,528                        07/872,108                       04/12/94
5,302,533                        07/866,043                       04/12/94
5,302,534                        07/844,311                       04/12/94
5,302,544                        07/992,220                       04/12/94
5,302,554                        07/928,026                       04/12/94
5,302,557                        07/801,918                       04/12/94
5,302,561                        08/029,713                       04/12/94
5,302,562                        07/967,596                       04/12/94
5,302,563                        07/847,560                       04/12/94
5,302,564                        07/839,248                       04/12/94
5,302,565                        07/946,078                       04/12/94
5,302,573                        07/996,426                       04/12/94
5,302,575                        08/000,240                       04/12/94
5,302,578                        08/103,166                       04/12/94
5,302,583                        07/980,565                       04/12/94
5,302,592                        08/107,422                       04/12/94
5,302,593                        08/079,921                       04/12/94
5,302,599                        07/945,323                       04/12/94
5,302,623                        08/025,006                       04/12/94
5,302,635                        07/806,364                       04/12/94
5,302,636                        07/940,755                       04/12/94
5,302,640                        07/976,337                       04/12/94
5,302,641                        07/978,494                       04/12/94
5,302,642                        07/975,888                       04/12/94
5,302,643                        08/096,284                       04/12/94
5,302,647                        07/728,223                       04/12/94
5,302,650                        07/999,468                       04/12/94
5,302,662                        08/019,718                       04/12/94
5,302,665                        07/911,099                       04/12/94
5,302,666                        07/637,624                       04/12/94
5,302,692                        08/077,132                       04/12/94
5,302,698                        08/022,411                       04/12/94
5,302,710                        07/927,967                       04/12/94
5,302,721                        07/918,337                       04/12/94
5,302,726                        07/992,315                       04/12/94
5,302,734                        07/897,470                       04/12/94
5,302,736                        08/143,593                       04/12/94
5,302,744                        07/858,809                       04/12/94
5,302,751                        07/823,367                       04/12/94
5,302,752                        07/509,231                       04/12/94
5,302,764                        07/849,076                       04/12/94
5,302,769                        07/986,187                       04/12/94
5,302,772                        07/991,833                       04/12/94
5,302,784                        08/029,053                       04/12/94
5,302,785                        08/033,474                       04/12/94
5,302,791                        08/016,548                       04/12/94
5,302,792                        08/050,638                       04/12/94
5,302,801                        08/066,259                       04/12/94
5,302,809                        07/847,178                       04/12/94
5,302,816                        07/937,849                       04/12/94
5,302,818                        07/968,609                       04/12/94
5,302,819                        07/849,435                       04/12/94
5,302,832                        07/950,677                       04/12/94
5,302,851                        07/810,621                       04/12/94
5,302,853                        08/007,932                       04/12/94
5,302,863                        08/011,028                       04/12/94
5,302,873                        07/997,274                       04/12/94
5,302,881                        07/896,064                       04/12/94
5,302,882                        07/965,629                       04/12/94
5,302,886                        08/028,767                       04/12/94
5,302,893                        07/741,623                       04/12/94
5,302,901                        07/932,870                       04/12/94
5,302,902                        07/691,908                       04/12/94
5,302,907                        07/965,043                       04/12/94
5,302,911                        07/995,690                       04/12/94
5,302,916                        07/992,882                       04/12/94
5,302,918                        08/071,412                       04/12/94
5,302,924                        07/906,214                       04/12/94
5,302,929                        07/646,870                       04/12/94
5,302,930                        08/037,081                       04/12/94
5,302,940                        07/956,266                       04/12/94
5,302,944                        07/734,244                       04/12/94
5,302,946                        07/741,584                       04/12/94
5,302,957                        08/055,457                       04/12/94
5,302,962                        07/688,502                       04/12/94
5,302,964                        07/951,077                       04/12/94
5,302,967                        07/795,663                       04/12/94
5,302,976                        07/888,793                       04/12/94
5,302,977                        07/966,239                       04/12/94
5,302,984                        08/001,018                       04/12/94
5,302,985                        08/025,266                       04/12/94
5,302,992                        08/092,680                       04/12/94
5,302,996                        07/981,564                       04/12/94
5,302,997                        07/997,386                       04/12/94
5,303,006                        07/809,657                       04/12/94
5,303,010                        07/895,033                       04/12/94
5,303,031                        07/880,399                       04/12/94
5,303,060                        08/025,345                       04/12/94
5,303,062                        07/634,442                       04/12/94
5,303,064                        07/658,177                       04/12/94
5,303,065                        07/784,332                       04/12/94
5,303,071                        08/073,282                       04/12/94
5,303,080                        08/041,730                       04/12/94
5,303,082                        07/860,424                       04/12/94
5,303,090                        07/951,678                       04/12/94
5,303,091                        08/018,470                       04/12/94
5,303,094                        07/936,147                       04/12/94
5,303,095                        07/991,080                       04/12/94
5,303,096                        07/913,252                       04/12/94
5,303,101                        07/851,372                       04/12/94
5,303,107                        07/869,237                       04/12/94
5,303,114                        07/942,872                       04/12/94
5,303,116                        07/760,740                       04/12/94
5,303,123                        07/994,273                       04/12/94
5,303,130                        07/997,348                       04/12/94
5,303,133                        07/919,050                       04/12/94
5,303,162                        07/790,341                       04/12/94
5,303,164                        07/789,880                       04/12/94
5,303,176                        07/916,937                       04/12/94
5,303,190                        07/966,910                       04/12/94
5,303,196                        07/888,226                       04/12/94
5,303,197                        07/690,482                       04/12/94
5,303,206                        07/916,289                       04/12/94
5,303,211                        07/414,090                       04/12/94
5,303,214                        07/816,590                       04/12/94
5,303,215                        07/493,954                       04/12/94
5,303,219                        07/756,729                       04/12/94
5,303,237                        07/923,713                       04/12/94
5,303,241                        07/797,296                       04/12/94
5,303,242                        07/874,048                       04/12/94
5,303,243                        07/665,275                       04/12/94
5,303,249                        07/920,303                       04/12/94
5,303,261                        07/799,649                       04/12/94
5,303,270                        07/851,555                       04/12/94
5,303,271                        07/957,489                       04/12/94
5,303,288                        08/042,902                       04/12/94
5,303,306                        07/796,659                       04/12/94
5,303,316                        07/455,053                       04/12/94
5,303,323                        07/961,737                       04/12/94
5,303,330                        07/992,868                       04/12/94
5,303,343                        07/585,705                       04/12/94
5,303,352                        07/433,057                       04/12/94
5,303,353                        07/862,660                       04/12/94
5,303,356                        07/677,685                       04/12/94
5,303,359                        07/631,002                       04/12/94
5,303,372                        07/719,969                       04/12/94
5,303,376                        07/484,486                       04/12/94
5,303,386                        07/803,503                       04/12/94
5,303,394                        07/742,998                       04/12/94
5,303,402                        07/848,559                       04/12/94
5,303,405                        07/753,775                       04/12/94
5,303,407                        07/787,488                       04/12/94
5,303,408                        07/863,605                       04/12/94
5,303,409                        07/894,132                       04/12/94
5,303,411                        07/883,820                       04/12/94

                    PATENTS WHICH EXPIRED ON April 14, 2002
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                             Serial                            Issue
Number                             Number                             Date

5,737,772                        08/802,972                       04/14/98
5,737,773                        08/802,973                       04/14/98
5,737,775                        08/726,912                       04/14/98
5,737,776                        08/753,000                       04/14/98
5,737,777                        08/739,589                       04/14/98
5,737,782                        08/569,352                       04/14/98
5,737,784                        08/792,379                       04/14/98
5,737,787                        08/786,669                       04/14/98
5,737,789                        08/868,068                       04/14/98
5,737,791                        08/656,786                       04/14/98
5,737,803                        08/720,169                       04/14/98
5,737,809                        08/795,415                       04/14/98
5,737,811                        08/781,371                       04/14/98
5,737,812                        08/737,822                       04/14/98
5,737,814                        08/757,249                       04/14/98
5,737,819                        08/438,383                       04/14/98
5,737,823                        08/685,189                       04/14/98
5,737,830                        08/756,857                       04/14/98
5,737,838                        08/758,858                       04/14/98
5,737,846                        08/755,049                       04/14/98
5,737,847                        08/800,451                       04/14/98
5,737,848                        08/617,332                       04/14/98
5,737,850                        08/741,681                       04/14/98
5,737,857                        08/611,042                       04/14/98
5,737,860                        08/896,800                       04/14/98
5,737,861                        08/636,875                       04/14/98
5,737,864                        08/780,187                       04/14/98
5,737,868                        08/744,637                       04/14/98
5,737,869                        08/741,725                       04/14/98
5,737,873                        08/637,295                       04/14/98
5,737,874                        08/356,152                       04/14/98
5,737,879                        08/829,653                       04/14/98
5,737,880                        08/753,390                       04/14/98
5,737,881                        08/764,940                       04/14/98
5,737,883                        08/796,967                       04/14/98
5,737,885                        08/624,970                       04/14/98
5,737,894                        08/484,975                       04/14/98
5,737,895                        08/575,343                       04/14/98
5,737,900                        08/529,017                       04/14/98
5,737,906                        08/697,216                       04/14/98
5,737,907                        08/560,819                       04/14/98
5,737,917                        08/753,737                       04/14/98
5,737,918                        08/676,259                       04/14/98
5,737,922                        08/380,777                       04/14/98
5,737,932                        08/735,599                       04/14/98
5,737,938                        08/789,016                       04/14/98
5,737,945                        08/562,180                       04/14/98
5,737,946                        08/724,525                       04/14/98
5,737,958                        08/662,371                       04/14/98
5,737,962                        08/682,877                       04/14/98
5,737,974                        08/687,177                       04/14/98
5,737,975                        08/458,648                       04/14/98
5,737,976                        08/847,792                       04/14/98
5,737,989                        08/773,449                       04/14/98
5,737,998                        08/791,651                       04/14/98
5,738,000                        08/681,269                       04/14/98
5,738,006                        08/654,179                       04/14/98
5,738,008                        08/694,367                       04/14/98
5,738,011                        08/787,338                       04/14/98
5,738,023                        08/501,012                       04/14/98
5,738,025                        08/412,742                       04/14/98
5,738,030                        08/614,295                       04/14/98
5,738,034                        08/735,682                       04/14/98
5,738,037                        08/640,041                       04/14/98
5,738,040                        08/730,905                       04/14/98
5,738,045                        08/376,351                       04/14/98
5,738,046                        08/695,682                       04/14/98
5,738,047                        08/648,095                       04/14/98
5,738,051                        08/610,553                       04/14/98
5,738,057                        08/536,422                       04/14/98
5,738,058                        08/617,745                       04/14/98
5,738,059                        08/751,101                       04/14/98
5,738,061                        08/675,071                       04/14/98
5,738,065                        08/697,787                       04/14/98
5,738,067                        08/737,453                       04/14/98
5,738,069                        08/738,298                       04/14/98
5,738,079                        08/496,791                       04/14/98
5,738,080                        08/598,895                       04/14/98
5,738,084                        08/547,495                       04/14/98
5,738,085                        08/762,248                       04/14/98
5,738,093                        08/737,809                       04/14/98
5,738,105                        08/547,275                       04/14/98
5,738,109                        08/472,122                       04/14/98
5,738,116                        08/373,113                       04/14/98
5,738,118                        08/779,891                       04/14/98
5,738,122                        08/433,016                       04/14/98
5,738,125                        08/674,106                       04/14/98
5,738,126                        08/835,376                       04/14/98
5,738,127                        08/631,894                       04/14/98
5,738,129                        08/820,839                       04/14/98
5,738,130                        08/779,369                       04/14/98
5,738,136                        08/655,370                       04/14/98
5,738,138                        08/814,782                       04/14/98
5,738,141                        08/610,753                       04/14/98
5,738,147                        08/539,690                       04/14/98
5,738,151                        08/696,055                       04/14/98
5,738,161                        08/711,205                       04/14/98
5,738,194                        08/717,008                       04/14/98
5,738,213                        08/620,267                       04/14/98
5,738,221                        08/489,306                       04/14/98
5,738,225                        08/734,739                       04/14/98
5,738,227                        08/788,999                       04/14/98
5,738,232                        08/583,333                       04/14/98
5,738,236                        08/798,977                       04/14/98
5,738,238                        08/728,172                       04/14/98
5,738,241                        08/600,395                       04/14/98
5,738,242                        08/717,685                       04/14/98
5,738,243                        08/742,215                       04/14/98
5,738,247                        08/719,654                       04/14/98
5,738,248                        08/701,786                       04/14/98
5,738,252                        08/848,030                       04/14/98
5,738,255                        08/855,739                       04/14/98
5,738,258                        08/734,884                       04/14/98
5,738,271                        08/751,989                       04/14/98
5,738,285                        08/521,468                       04/14/98
5,738,288                        08/658,353                       04/14/98
5,738,294                        08/712,069                       04/14/98
5,738,296                        08/747,609                       04/14/98
5,738,307                        08/622,451                       04/14/98
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