United States Patent and Trademark Office OG Notices: 20 April 2004

                        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 February 25, 2004
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Application                          Issue
Number                             Number                             Date

5,090,055                        07/599,569                       02/25/92
5,090,057                        07/565,038                       02/25/92
5,090,068                        07/631,089                       02/25/92
5,090,075                        07/693,149                       02/25/92
5,090,077                        07/758,354                       02/25/92
5,090,078                        07/528,376                       02/25/92
5,090,079                        07/553,732                       02/25/92
5,090,081                        07/581,348                       02/25/92
5,090,085                        07/149,045                       02/25/92
5,090,094                        07/619,122                       02/25/92
5,090,103                        07/468,278                       02/25/92
5,090,107                        07/632,637                       02/25/92
5,090,108                        07/598,878                       02/25/92
5,090,112                        07/576,387                       02/25/92
5,090,113                        07/503,745                       02/25/92
5,090,114                        07/735,810                       02/25/92
5,090,120                        07/488,632                       02/25/92
5,090,128                        07/631,849                       02/25/92
5,090,129                        07/624,617                       02/25/92
5,090,140                        07/613,300                       02/25/92
5,090,144                        07/563,625                       02/25/92
5,090,148                        07/556,016                       02/25/92
5,090,156                        07/671,162                       02/25/92
5,090,163                        07/484,395                       02/25/92
5,090,177                        07/701,604                       02/25/92
5,090,194                        07/522,011                       02/25/92
5,090,195                        07/602,584                       02/25/92
5,090,202                        07/427,480                       02/25/92
5,090,203                        07/488,228                       02/25/92
5,090,205                        07/667,327                       02/25/92
5,090,215                        07/615,895                       02/25/92
5,090,223                        07/625,432                       02/25/92
5,090,226                        07/665,461                       02/25/92
5,090,238                        07/588,748                       02/25/92
5,090,262                        07/734,026                       02/25/92
5,090,275                        07/731,801                       02/25/92
5,090,283                        07/525,585                       02/25/92
5,090,284                        07/452,356                       02/25/92
5,090,291                        07/516,154                       02/25/92
5,090,293                        07/518,906                       02/25/92
5,090,297                        07/521,232                       02/25/92
5,090,311                        07/520,835                       02/25/92
5,090,314                        07/686,416                       02/25/92
5,090,325                        07/718,306                       02/25/92
5,090,326                        07/642,463                       02/25/92
5,090,328                        07/749,705                       02/25/92
5,090,334                        07/553,358                       02/25/92
5,090,336                        07/597,577                       02/25/92
5,090,338                        07/616,596                       02/25/92
5,090,340                        07/739,410                       02/25/92
5,090,341                        07/584,456                       02/25/92
5,090,363                        07/544,882                       02/25/92
5,090,366                        07/498,329                       02/25/92
5,090,369                        07/600,580                       02/25/92
5,090,371                        07/704,797                       02/25/92
5,090,375                        07/618,167                       02/25/92
5,090,376                        07/659,030                       02/25/92
5,090,377                        07/670,695                       02/25/92
5,090,381                        07/608,349                       02/25/92
5,090,385                        07/623,622                       02/25/92
5,090,387                        07/684,908                       02/25/92
5,090,391                        07/503,677                       02/25/92
5,090,396                        07/618,385                       02/25/92
5,090,404                        07/477,058                       02/25/92
5,090,407                        07/569,562                       02/25/92
5,090,412                        07/465,166                       02/25/92
5,090,423                        07/425,203                       02/25/92
5,090,424                        07/636,285                       02/25/92
5,090,425                        07/487,621                       02/25/92
5,090,433                        07/302,959                       02/25/92
5,090,436                        07/707,958                       02/25/92
5,090,442                        07/748,680                       02/25/92
5,090,450                        07/706,207                       02/25/92
5,090,459                        07/647,666                       02/25/92
5,090,462                        07/640,245                       02/25/92
5,090,464                        07/535,157                       02/25/92
5,090,468                        07/519,853                       02/25/92
5,090,470                        07/657,165                       02/25/92
5,090,474                        07/665,286                       02/25/92
5,090,475                        07/584,064                       02/25/92
5,090,477                        07/573,898                       02/25/92
5,090,482                        07/633,824                       02/25/92
5,090,485                        07/079,715                       02/25/92
5,090,489                        07/443,431                       02/25/92
5,090,498                        07/541,887                       02/25/92
5,090,501                        07/580,956                       02/25/92
5,090,502                        07/629,947                       02/25/92
5,090,503                        07/605,284                       02/25/92
5,090,509                        07/602,764                       02/25/92
5,090,515                        07/495,084                       02/25/92
5,090,521                        07/634,386                       02/25/92
5,090,534                        07/570,292                       02/25/92
5,090,536                        07/666,772                       02/25/92
5,090,537                        07/621,207                       02/25/92
5,090,541                        07/532,645                       02/25/92
5,090,548                        07/594,272                       02/25/92
5,090,553                        07/516,578                       02/25/92
5,090,558                        07/589,393                       02/25/92
5,090,572                        07/733,370                       02/25/92
5,090,576                        07/452,875                       02/25/92
5,090,577                        07/688,868                       02/25/92
5,090,582                        07/598,316                       02/25/92
5,090,583                        07/675,696                       02/25/92
5,090,589                        07/017,099                       02/25/92
5,090,591                        07/671,106                       02/25/92
5,090,595                        07/659,574                       02/25/92
5,090,599                        07/662,017                       02/25/92
5,090,631                        07/597,856                       02/25/92
5,090,634                        07/534,227                       02/25/92
5,090,645                        07/576,063                       02/25/92
5,090,646                        07/531,307                       02/25/92
5,090,652                        07/495,841                       02/25/92
5,090,677                        07/480,030                       02/25/92
5,090,682                        07/542,048                       02/25/92
5,090,685                        07/591,620                       02/25/92
5,090,689                        07/635,935                       02/25/92
5,090,693                        07/707,606                       02/25/92
5,090,709                        07/540,143                       02/25/92
5,090,713                        07/633,074                       02/25/92
5,090,715                        07/515,123                       02/25/92
5,090,720                        07/617,187                       02/25/92
5,090,724                        07/651,182                       02/25/92
5,090,743                        07/537,443                       02/25/92
5,090,753                        07/559,860                       02/25/92
5,090,763                        07/725,282                       02/25/92
5,090,764                        07/504,056                       02/25/92
5,090,767                        07/645,794                       02/25/92
5,090,770                        07/510,555                       02/25/92
5,090,772                        07/485,789                       02/25/92
5,090,774                        07/586,449                       02/25/92
5,090,780                        07/695,079                       02/25/92
5,090,787                        07/672,136                       02/25/92
5,090,791                        07/403,373                       02/25/92
5,090,807                        07/463,277                       02/25/92
5,090,811                        07/597,275                       02/25/92
5,090,818                        07/516,532                       02/25/92
5,090,819                        07/569,435                       02/25/92
5,090,821                        07/660,342                       02/25/92
5,090,825                        07/672,793                       02/25/92
5,090,829                        07/642,499                       02/25/92
5,090,849                        07/545,626                       02/25/92
5,090,851                        07/746,229                       02/25/92
5,090,855                        07/606,586                       02/25/92
5,090,858                        07/656,124                       02/25/92
5,090,863                        07/482,317                       02/25/92
5,090,869                        07/507,578                       02/25/92
5,090,879                        07/529,288                       02/25/92
5,090,882                        07/557,787                       02/25/92
5,090,889                        07/551,556                       02/25/92
5,090,890                        07/598,522                       02/25/92
5,090,895                        07/682,368                       02/25/92
5,090,902                        07/669,069                       02/25/92
5,090,903                        07/642,787                       02/25/92
5,090,907                        07/746,606                       02/25/92
5,090,927                        07/722,075                       02/25/92
5,090,932                        07/439,372                       02/25/92
5,090,935                        07/628,415                       02/25/92
5,090,938                        07/675,732                       02/25/92
5,090,940                        07/685,834                       02/25/92
5,090,942                        07/663,616                       02/25/92
5,090,944                        07/129,406                       02/25/92
5,090,956                        07/444,985                       02/25/92
5,090,962                        07/344,992                       02/25/92
5,090,966                        07/582,016                       02/25/92
5,090,967                        07/547,323                       02/25/92
5,090,969                        07/425,255                       02/25/92
5,090,971                        07/565,421                       02/25/92
5,090,972                        07/651,596                       02/25/92
5,090,973                        07/601,972                       02/25/92
5,090,981                        07/579,915                       02/25/92
5,090,988                        07/698,610                       02/25/92
5,090,990                        07/615,354                       02/25/92
5,090,994                        07/447,548                       02/25/92
5,090,996                        07/460,167                       02/25/92
5,091,006                        07/547,717                       02/25/92
5,091,010                        07/714,313                       02/25/92
5,091,016                        07/542,522                       02/25/92
5,091,017                        07/438,710                       02/25/92
5,091,021                        07/589,359                       02/25/92
5,091,022                        07/555,843                       02/25/92
5,091,030                        07/443,371                       02/25/92
5,091,034                        07/594,087                       02/25/92
5,091,035                        07/610,447                       02/25/92
5,091,036                        07/417,297                       02/25/92
5,091,037                        07/555,430                       02/25/92
5,091,046                        07/636,458                       02/25/92
5,091,054                        07/395,520                       02/25/92
5,091,056                        07/671,003                       02/25/92
5,091,058                        07/645,775                       02/25/92
5,091,064                        07/572,550                       02/25/92
5,091,065                        07/530,772                       02/25/92
5,091,066                        07/707,310                       02/25/92
5,091,070                        07/575,264                       02/25/92
5,091,075                        07/549,324                       02/25/92
5,091,078                        07/588,602                       02/25/92
5,091,079                        07/691,692                       02/25/92
5,091,081                        07/510,531                       02/25/92
5,091,092                        07/347,519                       02/25/92
5,091,102                        07/563,561                       02/25/92
5,091,108                        07/658,732                       02/25/92
5,091,112                        07/495,090                       02/25/92
5,091,120                        07/617,650                       02/25/92
5,091,121                        07/591,279                       02/25/92
5,091,127                        07/552,865                       02/25/92
5,091,132                        07/390,013                       02/25/92
5,091,152                        07/195,752                       02/25/92
5,091,154                        07/456,147                       02/25/92
5,091,195                        07/384,265                       02/25/92
5,091,203                        07/444,198                       02/25/92
5,091,209                        07/596,001                       02/25/92
5,091,218                        07/569,254                       02/25/92
5,091,219                        07/555,964                       02/25/92
5,091,221                        07/571,138                       02/25/92
5,091,232                        07/459,972                       02/25/92
5,091,237                        07/371,300                       02/25/92
5,091,246                        07/482,345                       02/25/92
5,091,251                        07/528,203                       02/25/92
5,091,255                        07/468,525                       02/25/92
5,091,265                        07/657,476                       02/25/92
5,091,273                        07/536,927                       02/25/92
5,091,276                        07/625,196                       02/25/92
5,091,278                        07/575,610                       02/25/92
5,091,289                        07/516,394                       02/25/92
5,091,294                        07/509,879                       02/25/92
5,091,300                        07/389,207                       02/25/92
5,091,306                        07/163,390                       02/25/92
5,091,308                        07/471,505                       02/25/92
5,091,312                        07/598,828                       02/25/92
5,091,314                        07/566,322                       02/25/92
5,091,330                        07/635,071                       02/25/92
5,091,338                        07/512,360                       02/25/92
5,091,340                        07/635,810                       02/25/92
5,091,346                        07/251,380                       02/25/92
5,091,347                        07/567,889                       02/25/92
5,091,350                        07/605,939                       02/25/92
5,091,358                        07/544,716                       02/25/92
5,091,360                        07/522,038                       02/25/92
5,091,367                        07/724,477                       02/25/92
5,091,371                        07/545,696                       02/25/92
5,091,379                        07/400,404                       02/25/92
5,091,388                        07/533,416                       02/25/92
5,091,391                        07/568,301                       02/25/92
5,091,397                        07/415,123                       02/25/92
5,091,406                        07/479,493                       02/25/92
5,091,407                        07/442,436                       02/25/92
5,091,408                        07/506,414                       02/25/92
5,091,425                        07/435,687                       02/25/92
5,091,426                        07/371,354                       02/25/92
5,091,431                        07/543,778                       02/25/92
5,091,443                        07/476,869                       02/25/92
5,091,451                        07/663,354                       02/25/92
5,091,454                        07/668,089                       02/25/92
5,091,458                        07/482,126                       02/25/92
5,091,467                        07/678,879                       02/25/92
5,091,468                        07/471,349                       02/25/92
5,091,469                        07/545,166                       02/25/92
5,091,487                        07/520,426                       02/25/92
5,091,495                        07/580,152                       02/25/92
5,091,503                        07/394,534                       02/25/92
5,091,506                        07/585,750                       02/25/92
5,091,507                        07/509,845                       02/25/92
5,091,519                        06/858,600                       02/25/92
5,091,527                        07/318,075                       02/25/92
5,091,536                        07/153,857                       02/25/92
5,091,539                        07/531,347                       02/25/92
5,091,540                        07/500,134                       02/25/92
5,091,541                        07/602,559                       02/25/92
5,091,555                        07/592,485                       02/25/92
5,091,573                        07/581,158                       02/25/92
5,091,575                        07/713,644                       02/25/92
5,091,577                        07/537,662                       02/25/92
5,091,578                        07/537,968                       02/25/92
5,091,579                        07/379,854                       02/25/92
5,091,584                        07/631,267                       02/25/92
5,091,588                        07/584,752                       02/25/92
5,091,596                        07/631,374                       02/25/92
5,091,599                        07/504,234                       02/25/92
5,091,609                        07/598,629                       02/25/92
5,091,610                        07/585,860                       02/25/92
5,091,614                        07/431,878                       02/25/92
5,091,618                        07/526,887                       02/25/92
5,091,622                        07/493,048                       02/25/92
5,091,623                        07/544,734                       02/25/92
5,091,629                        07/594,402                       02/25/92
5,091,631                        07/383,094                       02/25/92
5,091,632                        07/610,517                       02/25/92
5,091,637                        07/539,778                       02/25/92
5,091,638                        07/554,342                       02/25/92
5,091,643                        07/561,380                       02/25/92
5,091,648                        07/454,695                       02/25/92
5,091,665                        07/577,570                       02/25/92
5,091,691                        07/280,973                       02/25/92
5,091,704                        07/667,910                       02/25/92
5,091,705                        07/613,717                       02/25/92
5,091,712                        07/673,190                       02/25/92
5,091,721                        07/289,161                       02/25/92
5,091,729                        07/300,641                       02/25/92
5,091,731                        07/160,902                       02/25/92
5,091,735                        07/684,763                       02/25/92
5,091,763                        07/630,285                       02/25/92
5,091,772                        07/405,313                       02/25/92
5,091,776                        07/611,889                       02/25/92
5,091,778                        07/632,377                       02/25/92
5,091,780                        07/521,237                       02/25/92
5,091,784                        07/578,006                       02/25/92
5,091,789                        07/707,963                       02/25/92
5,091,793                        07/634,849                       02/25/92
5,091,797                        07/581,576                       02/25/92
5,091,803                        07/638,786                       02/25/92
5,091,808                        07/390,596                       02/25/92
5,091,810                        07/528,494                       02/25/92
5,091,812                        07/388,850                       02/25/92
5,091,814                        07/617,090                       02/25/92
5,091,816                        07/418,672                       02/25/92
5,091,820                        07/431,343                       02/25/92
5,091,826                        07/500,324                       02/25/92
5,091,829                        07/693,585                       02/25/92
5,091,830                        07/713,201                       02/25/92
5,091,832                        07/678,265                       02/25/92
5,091,836                        07/709,358                       02/25/92
5,091,841                        07/460,785                       02/25/92
5,091,844                        07/431,835                       02/25/92
5,091,848                        07/179,987                       02/25/92
5,091,859                        07/400,504                       02/25/92
5,091,860                        07/409,833                       02/25/92
5,091,862                        07/541,284                       02/25/92
5,091,864                        07/455,141                       02/25/92
5,091,871                        07/464,876                       02/25/92
5,091,874                        07/210,968                       02/25/92
5,091,880                        07/471,841                       02/25/92
5,091,884                        07/543,509                       02/25/92
5,091,887                        07/521,717                       02/25/92
5,091,901                        07/495,635                       02/25/92
5,091,903                        07/566,158                       02/25/92
5,091,910                        07/464,387                       02/25/92
5,091,911                        07/691,695                       02/25/92
5,091,913                        07/507,150                       02/25/92
5,091,914                        07/571,647                       02/25/92
5,091,918                        07/583,984                       02/25/92
5,091,922                        07/373,397                       02/25/92
5,091,940                        07/464,815                       02/25/92
5,091,946                        07/455,025                       02/25/92
5,091,948                        07/493,118                       02/25/92
5,091,969                        07/652,389                       02/25/92
5,091,974                        07/515,011                       02/25/92
5,091,977                        07/630,200                       02/25/92
5,091,980                        07/580,599                       02/25/92
5,091,982                        07/550,569                       02/25/92
5,091,985                        07/640,799                       02/25/92
5,091,986                        07/610,680                       02/25/92
5,091,988                        07/684,129                       02/25/92
5,091,990                        07/656,255                       02/25/92
5,091,991                        07/660,507                       02/25/92

                  PATENTS WHICH EXPIRED ON February 20, 2004
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Application                          Issue
Number                             Number                             Date

5,491,841                        08/206,342                       02/20/96
5,491,845                        08/295,549                       02/20/96
5,491,846                        08/353,020                       02/20/96
5,491,849                        08/309,190                       02/20/96
5,491,853                        08/355,953                       02/20/96
5,491,855                        08/202,643                       02/20/96
5,491,859                        08/159,259                       02/20/96
5,491,864                        08/339,094                       02/20/96
5,491,875                        08/279,142                       02/20/96
5,491,880                        08/305,930                       02/20/96
5,491,882                        08/304,935                       02/20/96
5,491,884                        08/210,717                       02/20/96
5,491,893                        08/325,114                       02/20/96
5,491,895                        08/349,182                       02/20/96
5,491,901                        08/347,894                       02/20/96
5,491,905                        08/233,885                       02/20/96
5,491,914                        08/288,277                       02/20/96
5,491,918                        08/297,316                       02/20/96
5,491,925                        07/945,247                       02/20/96
5,491,926                        08/254,595                       02/20/96
5,491,930                        08/372,415                       02/20/96
5,491,933                        08/308,971                       02/20/96
5,491,934                        07/919,539                       02/20/96
5,491,940                        08/325,995                       02/20/96
5,491,953                        08/211,551                       02/20/96
5,491,960                        08/313,920                       02/20/96
5,491,963                        08/288,959                       02/20/96
5,491,965                        08/290,963                       02/20/96
5,491,966                        08/185,907                       02/20/96
5,491,969                        08/369,506                       02/20/96
5,491,976                        08/305,616                       02/20/96
5,491,978                        08/388,720                       02/20/96
5,491,984                        08/209,116                       02/20/96
5,491,986                        08/194,102                       02/20/96
5,491,990                        08/230,731                       02/20/96
5,491,992                        08/235,469                       02/20/96
5,491,993                        08/210,050                       02/20/96
5,492,005                        08/334,704                       02/20/96
5,492,012                        07/966,492                       02/20/96
5,492,013                        08/170,427                       02/20/96
5,492,017                        08/196,677                       02/20/96
5,492,021                        08/312,740                       02/20/96
5,492,030                        08/186,976                       02/20/96
5,492,032                        08/291,760                       02/20/96
5,492,042                        08/165,892                       02/20/96
5,492,047                        08/326,547                       02/20/96
5,492,056                        08/318,634                       02/20/96
5,492,060                        08/289,694                       02/20/96
5,492,065                        08/186,543                       02/20/96
5,492,072                        08/287,684                       02/20/96
5,492,076                        08/223,218                       02/20/96
5,492,080                        08/360,642                       02/20/96
5,492,090                        08/302,654                       02/20/96
5,492,092                        08/407,118                       02/20/96
5,492,103                        08/357,366                       02/20/96
5,492,104                        08/334,619                       02/20/96
5,492,112                        08/227,559                       02/20/96
5,492,117                        08/239,811                       02/20/96
5,492,123                        08/106,228                       02/20/96
5,492,130                        08/053,827                       02/20/96
5,492,132                        08/202,697                       02/20/96
5,492,135                        07/942,657                       02/20/96
5,492,136                        08/153,571                       02/20/96
5,492,137                        08/272,557                       02/20/96
5,492,140                        08/508,792                       02/20/96
5,492,144                        08/267,376                       02/20/96
5,492,145                        08/311,865                       02/20/96
5,492,146                        08/197,317                       02/20/96
5,492,147                        08/373,620                       02/20/96
5,492,151                        08/119,469                       02/20/96
5,492,155                        08/226,047                       02/20/96
5,492,160                        08/252,278                       02/20/96
5,492,161                        08/386,194                       02/20/96
5,492,162                        08/277,986                       02/20/96
5,492,163                        08/246,066                       02/20/96
5,492,165                        08/156,251                       02/20/96
5,492,171                        08/075,497                       02/20/96
5,492,173                        08/028,963                       02/20/96
5,492,175                        08/370,274                       02/20/96
5,492,176                        08/347,935                       02/20/96
5,492,177                        08/347,918                       02/20/96
5,492,179                        08/329,127                       02/20/96
5,492,180                        08/329,006                       02/20/96
5,492,184                        08/198,898                       02/20/96
5,492,188                        08/261,713                       02/20/96
5,492,192                        08/293,632                       02/20/96
5,492,199                        08/376,871                       02/20/96
5,492,201                        08/298,482                       02/20/96
5,492,207                        07/923,946                       02/20/96
5,492,214                        08/170,794                       02/20/96
5,492,217                        08/291,169                       02/20/96
5,492,220                        08/315,221                       02/20/96
5,492,227                        08/267,351                       02/20/96
5,492,228                        08/253,708                       02/20/96
5,492,241                        08/361,741                       02/20/96
5,492,242                        08/151,843                       02/20/96
5,492,244                        08/276,868                       02/20/96
5,492,250                        08/409,326                       02/20/96
5,492,256                        08/387,135                       02/20/96
5,492,258                        08/287,845                       02/20/96
5,492,259                        08/082,774                       02/20/96
5,492,260                        08/292,702                       02/20/96
5,492,261                        08/389,265                       02/20/96
5,492,265                        08/307,633                       02/20/96
5,492,270                        08/276,902                       02/20/96
5,492,273                        08/357,044                       02/20/96
5,492,279                        08/313,959                       02/20/96
5,492,283                        08/097,321                       02/20/96
5,492,286                        08/133,523                       02/20/96
5,492,291                        08/018,702                       02/20/96
5,492,292                        08/056,863                       02/20/96
5,492,302                        08/016,737                       02/20/96
5,492,305                        08/372,058                       02/20/96
5,492,309                        08/309,805                       02/20/96
5,492,311                        08/273,038                       02/20/96
5,492,314                        08/398,833                       02/20/96
5,492,317                        08/266,038                       02/20/96
5,492,318                        08/295,575                       02/20/96
5,492,319                        08/327,003                       02/20/96
5,492,321                        08/262,388                       02/20/96
5,492,322                        08/369,368                       02/20/96
5,492,326                        08/266,329                       02/20/96
5,492,332                        08/380,726                       02/20/96
5,492,334                        08/406,459                       02/20/96
5,492,337                        08/250,878                       02/20/96
5,492,339                        08/245,126                       02/20/96
5,492,340                        08/247,202                       02/20/96
5,492,346                        08/125,490                       02/20/96
5,492,347                        08/359,034                       02/20/96
5,492,348                        08/281,628                       02/20/96
5,492,350                        08/351,088                       02/20/96
5,492,355                        08/186,278                       02/20/96
5,492,365                        08/306,012                       02/20/96
5,492,374                        08/076,128                       02/20/96
5,492,378                        08/193,362                       02/20/96
5,492,379                        08/265,905                       02/20/96
5,492,382                        08/250,701                       02/20/96
5,492,383                        08/295,204                       02/20/96
5,492,385                        08/383,109                       02/20/96
5,492,387                        08/219,421                       02/20/96
5,492,391                        08/139,094                       02/20/96
5,492,402                        08/376,904                       02/20/96
5,492,404                        07/739,228                       02/20/96
5,492,410                        08/271,109                       02/20/96
5,492,414                        08/463,917                       02/20/96
5,492,416                        08/159,686                       02/20/96
5,492,417                        08/305,532                       02/20/96
5,492,418                        08/287,969                       02/20/96
5,492,430                        08/322,465                       02/20/96
5,492,437                        08/437,885                       02/20/96
5,492,441                        08/392,870                       02/20/96
5,492,445                        08/198,886                       02/20/96
5,492,446                        08/356,763                       02/20/96
5,492,449                        08/204,379                       02/20/96
5,492,450                        08/127,194                       02/20/96
5,492,451                        08/316,986                       02/20/96
5,492,454                        08/368,970                       02/20/96
5,492,457                        08/262,980                       02/20/96
5,492,459                        08/338,298                       02/20/96
5,492,460                        08/207,189                       02/20/96
5,492,461                        08/284,593                       02/20/96
5,492,465                        08/230,086                       02/20/96
5,492,473                        08/174,708                       02/20/96
5,492,478                        08/167,963                       02/20/96
5,492,480                        08/332,928                       02/20/96
5,492,486                        08/492,331                       02/20/96
5,492,489                        08/264,942                       02/20/96
5,492,501                        07/619,384                       02/20/96
5,492,504                        08/323,778                       02/20/96
5,492,505                        08/316,428                       02/20/96
5,492,506                        08/324,764                       02/20/96
5,492,511                        08/340,215                       02/20/96
5,492,521                        08/413,899                       02/20/96
5,492,525                        08/293,702                       02/20/96
5,492,526                        08/323,124                       02/20/96
5,492,533                        08/271,209                       02/20/96
5,492,546                        08/492,354                       02/20/96
5,492,551                        08/233,245                       02/20/96
5,492,571                        08/140,956                       02/20/96
5,492,572                        08/345,055                       02/20/96
5,492,599                        08/245,651                       02/20/96
5,492,604                        08/364,918                       02/20/96
5,492,605                        08/282,093                       02/20/96
5,492,610                        08/324,846                       02/20/96
5,492,612                        08/310,231                       02/20/96
5,492,613                        07/933,861                       02/20/96
5,492,618                        08/289,725                       02/20/96
5,492,631                        08/343,590                       02/20/96
5,492,637                        08/447,032                       02/20/96
5,492,639                        08/279,064                       02/20/96
5,492,644                        08/177,180                       02/20/96
5,492,647                        08/436,895                       02/20/96
5,492,648                        08/084,973                       02/20/96
5,492,658                        08/356,207                       02/20/96
5,492,663                        08/263,362                       02/20/96
5,492,677                        08/146,748                       02/20/96
5,492,682                        08/230,707                       02/20/96
5,492,687                        08/237,502                       02/20/96
5,492,690                        08/205,969                       02/20/96
5,492,691                        08/206,700                       02/20/96
5,492,700                        08/280,385                       02/20/96
5,492,704                        07/741,690                       02/20/96
5,492,707                        08/323,999                       02/20/96
5,492,708                        08/211,306                       02/20/96
5,492,710                        08/199,412                       02/20/96
5,492,713                        08/150,039                       02/20/96
5,492,718                        08/349,230                       02/20/96
5,492,719                        08/286,629                       02/20/96
5,492,723                        07/945,652                       02/20/96
5,492,731                        07/701,948                       02/20/96
5,492,746                        08/389,737                       02/20/96
5,492,747                        08/231,372                       02/20/96
5,492,755                        08/291,491                       02/20/96
5,492,758                        08/081,942                       02/20/96
5,492,761                        08/280,672                       02/20/96
5,492,773                        08/080,391                       02/20/96
5,492,780                        08/243,107                       02/20/96
5,492,781                        08/182,718                       02/20/96
5,492,783                        08/126,523                       02/20/96
5,492,787                        08/384,806                       02/20/96
5,492,790                        08/257,904                       02/20/96
5,492,791                        08/432,048                       02/20/96
5,492,806                        08/045,912                       02/20/96
5,492,812                        08/159,969                       02/20/96
5,492,813                        08/146,673                       02/20/96
5,492,821                        07/791,915                       02/20/96
5,492,824                        08/242,663                       02/20/96
5,492,830                        08/083,943                       02/20/96
5,492,832                        08/190,100                       02/20/96
5,492,848                        08/214,593                       02/20/96
5,492,852                        08/319,101                       02/20/96
5,492,855                        08/364,115                       02/20/96
5,492,861                        08/112,711                       02/20/96
5,492,873                        08/191,836                       02/20/96
5,492,877                        08/285,701                       02/20/96
5,492,879                        08/225,081                       02/20/96
5,492,883                        08/342,834                       02/20/96
5,492,886                        08/227,944                       02/20/96
5,492,900                        08/119,982                       02/20/96
5,492,902                        08/348,571                       02/20/96
5,492,911                        08/146,204                       02/20/96
5,492,913                        08/216,795                       02/20/96
5,492,921                        08/424,988                       02/20/96
5,492,924                        08/126,361                       02/20/96
5,492,926                        08/423,329                       02/20/96
5,492,927                        08/168,484                       02/20/96
5,492,933                        08/134,271                       02/20/96
5,492,939                        08/420,529                       02/20/96
5,492,940                        08/444,605                       02/20/96
5,492,945                        08/314,484                       02/20/96
5,492,956                        08/391,316                       02/20/96
5,492,958                        08/403,024                       02/20/96
5,492,963                        08/180,139                       02/20/96
5,492,965                        08/471,950                       02/20/96
5,492,966                        07/863,633                       02/20/96
5,492,978                        08/455,488                       02/20/96
5,492,982                        08/341,917                       02/20/96
5,492,985                        08/455,306                       02/20/96
5,492,993                        08/190,953                       02/20/96
5,492,995                        08/383,833                       02/20/96
5,493,003                        08/320,319                       02/20/96
5,493,008                        08/288,728                       02/20/96
5,493,009                        08/041,885                       02/20/96
5,493,010                        08/214,732                       02/20/96
5,493,012                        08/071,116                       02/20/96
5,493,013                        08/252,386                       02/20/96
5,493,023                        08/160,174                       02/20/96
5,493,028                        08/179,876                       02/20/96
5,493,029                        08/164,392                       02/20/96
5,493,033                        08/252,459                       02/20/96
5,493,034                        08/443,522                       02/20/96
5,493,036                        08/308,481                       02/20/96
5,493,043                        08/441,171                       02/20/96
5,493,047                        08/161,420                       02/20/96
5,493,051                        08/235,525                       02/20/96
5,493,052                        08/394,280                       02/20/96
5,493,060                        08/307,127                       02/20/96
5,493,076                        08/378,411                       02/20/96
5,493,078                        08/030,772                       02/20/96
5,493,079                        08/298,139                       02/20/96
5,493,083                        08/191,121                       02/20/96
5,493,089                        08/181,634                       02/20/96
5,493,093                        08/198,253                       02/20/96
5,493,095                        08/195,966                       02/20/96
5,493,102                        08/186,922                       02/20/96
5,493,103                        08/173,784                       02/20/96
5,493,118                        08/120,371                       02/20/96
5,493,119                        08/352,285                       02/20/96
5,493,124                        08/234,650                       02/20/96
5,493,126                        08/395,018                       02/20/96
5,493,127                        08/359,589                       02/20/96
5,493,132                        08/394,221                       02/20/96
5,493,135                        08/376,404                       02/20/96
5,493,143                        08/279,793                       02/20/96
5,493,147                        08/319,765                       02/20/96
5,493,160                        08/213,646                       02/20/96
5,493,161                        08/186,166                       02/20/96
5,493,164                        08/277,867                       02/20/96
5,493,177                        08/143,220                       02/20/96
5,493,184                        08/046,671                       02/20/96
5,493,185                        07/946,431                       02/20/96
5,493,186                        08/087,256                       02/20/96
5,493,190                        08/315,421                       02/20/96
5,493,215                        08/203,042                       02/20/96
5,493,220                        08/026,589                       02/20/96
5,493,237                        08/250,267                       02/20/96
5,493,238                        08/233,828                       02/20/96
5,493,239                        08/381,388                       02/20/96
5,493,240                        08/397,007                       02/20/96
5,493,246                        08/300,906                       02/20/96
5,493,247                        08/039,398                       02/20/96
5,493,251                        08/349,503                       02/20/96
5,493,253                        08/315,107                       02/20/96
5,493,259                        08/398,796                       02/20/96
5,493,264                        08/317,543                       02/20/96
5,493,269                        08/184,486                       02/20/96
5,493,276                        08/297,212                       02/20/96
5,493,279                        08/036,426                       02/20/96
5,493,283                        08/339,643                       02/20/96
5,493,288                        08/302,444                       02/20/96
5,493,295                        08/211,085                       02/20/96
5,493,301                        08/230,953                       02/20/96
5,493,309                        08/125,891                       02/20/96
5,493,314                        08/319,659                       02/20/96
5,493,315                        08/271,553                       02/20/96
5,493,318                        08/120,237                       02/20/96
5,493,329                        08/316,349                       02/20/96
5,493,334                        08/420,325                       02/20/96
5,493,336                        08/240,503                       02/20/96
5,493,342                        08/167,516                       02/20/96
5,493,346                        08/083,283                       02/20/96
5,493,353                        08/333,138                       02/20/96
5,493,354                        08/315,676                       02/20/96
5,493,360                        08/265,599                       02/20/96
5,493,361                        08/261,870                       02/20/96
5,493,366                        08/289,176                       02/20/96
5,493,369                        08/297,204                       02/20/96
5,493,373                        08/316,017                       02/20/96
5,493,376                        08/166,848                       02/20/96
5,493,383                        08/342,284                       02/20/96
5,493,384                        08/227,336                       02/20/96
5,493,397                        08/188,186                       02/20/96
5,493,400                        08/255,061                       02/20/96
5,493,406                        08/426,588                       02/20/96
5,493,411                        08/468,386                       02/20/96
5,493,417                        08/464,214                       02/20/96
5,493,419                        08/502,791                       02/20/96
5,493,426                        08/056,415                       02/20/96
5,493,427                        08/247,995                       02/20/96
5,493,435                        08/127,698                       02/20/96
5,493,437                        08/119,635                       02/20/96
5,493,441                        08/181,263                       02/20/96
5,493,446                        08/312,679                       02/20/96
5,493,447                        08/299,410                       02/20/96
5,493,448                        08/148,811                       02/20/96
5,493,451                        08/342,820                       02/20/96
5,493,457                        08/243,090                       02/20/96
5,493,472                        08/202,283                       02/20/96
5,493,480                        08/288,934                       02/20/96
5,493,481                        08/007,349                       02/20/96
5,493,486                        08/406,281                       02/20/96
5,493,488                        08/350,263                       02/20/96
5,493,505                        08/144,802                       02/20/96
5,493,509                        08/115,144                       02/20/96
5,493,521                        08/208,081                       02/20/96
5,493,522                        08/309,641                       02/20/96
5,493,542                        08/170,228                       02/20/96
5,493,544                        08/250,563                       02/20/96
5,493,545                        08/352,220                       02/20/96
5,493,550                        08/348,062                       02/20/96
5,493,554                        08/138,681                       02/20/96
5,493,560                        08/173,171                       02/20/96
5,493,585                        08/233,544                       02/20/96
5,493,587                        08/097,675                       02/20/96
5,493,593                        08/312,719                       02/20/96
5,493,627                        07/809,038                       02/20/96
5,493,629                        08/273,442                       02/20/96
5,493,631                        08/153,096                       02/20/96
5,493,635                        08/259,704                       02/20/96
5,493,652                        08/235,767                       02/20/96
5,493,658                        08/326,799                       02/20/96
5,493,663                        07/872,733                       02/20/96
5,493,665                        07/994,382                       02/20/96
5,493,672                        08/245,201                       02/20/96
5,493,674                        08/140,598                       02/20/96
5,493,678                        08/313,661                       02/20/96
5,493,682                        08/329,792                       02/20/96
5,493,703                        08/276,446                       02/20/96
5,493,714                        08/496,492                       02/20/96
5,493,715                        08/283,329                       02/20/96
5,493,721                        08/148,313                       02/20/96
5,493,724                        08/041,376                       02/20/96

                  PATENTS WHICH EXPIRED ON February 22, 2004
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Application                          Issue
Number                             Number                             Date

6,026,514                        09/201,300                       02/22/00
6,026,516                        09/002,963                       02/22/00
6,026,518                        09/058,379                       02/22/00
6,026,524                        09/177,172                       02/22/00
6,026,525                        09/165,008                       02/22/00
6,026,526                        09/216,817                       02/22/00
6,026,531                        09/054,560                       02/22/00
6,026,532                        08/777,032                       02/22/00
6,026,536                        08/947,978                       02/22/00
6,026,537                        09/070,330                       02/22/00
6,026,542                        09/040,345                       02/22/00
6,026,556                        08/779,244                       02/22/00
6,026,562                        08/883,469                       02/22/00
6,026,564                        09/058,681                       02/22/00
6,026,570                        09/034,156                       02/22/00
6,026,574                        09/049,258                       02/22/00
6,026,584                        08/960,003                       02/22/00
6,026,585                        08/963,030                       02/22/00
6,026,596                        08/293,681                       02/22/00
6,026,597                        09/167,232                       02/22/00
6,026,606                        09/134,096                       02/22/00
6,026,609                        09/062,988                       02/22/00
6,026,610                        08/887,620                       02/22/00
6,026,612                        08/977,008                       02/22/00
6,026,617                        08/919,715                       02/22/00
6,026,628                        08/544,023                       02/22/00
6,026,633                        09/104,101                       02/22/00
6,026,635                        09/184,733                       02/22/00
6,026,648                        09/080,348                       02/22/00
6,026,656                        09/069,155                       02/22/00
6,026,659                        09/177,308                       02/22/00
6,026,661                        09/239,041                       02/22/00
6,026,663                        09/206,701                       02/22/00
6,026,666                        08/875,215                       02/22/00
6,026,669                        09/256,433                       02/22/00
6,026,672                        09/141,819                       02/22/00
6,026,676                        08/887,144                       02/22/00
6,026,678                        09/361,799                       02/22/00
6,026,684                        09/118,416                       02/22/00
6,026,688                        08/943,575                       02/22/00
6,026,693                        08/868,755                       02/22/00
6,026,702                        09/018,646                       02/22/00
6,026,703                        08/911,107                       02/22/00
6,026,706                        09/091,205                       02/22/00
6,026,714                        09/095,113                       02/22/00
6,026,738                        09/390,149                       02/22/00
6,026,742                        09/090,699                       02/22/00
6,026,748                        08/967,394                       02/22/00
6,026,753                        08/985,318                       02/22/00
6,026,757                        09/088,875                       02/22/00
6,026,760                        09/004,900                       02/22/00
6,026,767                        09/017,088                       02/22/00
6,026,769                        08/865,787                       02/22/00
6,026,778                        09/123,315                       02/22/00
6,026,782                        09/165,443                       02/22/00
6,026,796                        09/117,384                       02/22/00
6,026,800                        09/159,063                       02/22/00
6,026,802                        08/963,206                       02/22/00
6,026,813                        09/292,001                       02/22/00
6,026,815                        08/948,370                       02/22/00
6,026,819                        09/025,301                       02/22/00
6,026,826                        09/245,688                       02/22/00
6,026,827                        09/142,465                       02/22/00
6,026,831                        09/195,516                       02/22/00
6,026,834                        08/953,449                       02/22/00
6,026,839                        09/074,764                       02/22/00
6,026,843                        09/199,177                       02/22/00
6,026,868                        09/159,910                       02/22/00
6,026,869                        09/328,318                       02/22/00
6,026,870                        09/201,251                       02/22/00
6,026,872                        09/185,106                       02/22/00
6,026,875                        08/987,161                       02/22/00
6,026,881                        08/910,755                       02/22/00
6,026,884                        09/013,832                       02/22/00
6,026,902                        09/216,065                       02/22/00
6,026,905                        09/044,748                       02/22/00
6,026,909                        09/182,227                       02/22/00
6,026,910                        09/006,098                       02/22/00
6,026,911                        09/188,509                       02/22/00
6,026,920                        09/089,589                       02/22/00
6,026,923                        08/964,789                       02/22/00
6,026,928                        09/286,675                       02/22/00
6,026,929                        09/168,255                       02/22/00
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