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 May 2, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,825,469 07/083,563 05/02/89
4,825,479 07/153,365 05/02/89
4,825,483 07/171,647 05/02/89
4,825,497 07/029,608 05/02/89
4,825,498 07/173,284 05/02/89
4,825,503 07/118,924 05/02/89
4,825,508 07/131,014 05/02/89
4,825,510 07/219,588 05/02/89
4,825,516 07/176,850 05/02/89
4,825,517 06/671,649 05/02/89
4,825,523 07/079,122 05/02/89
4,825,534 07/092,216 05/02/89
4,825,543 07/139,134 05/02/89
4,825,546 07/084,041 05/02/89
4,825,555 07/114,664 05/02/89
4,825,573 06/861,352 05/02/89
4,825,596 07/234,384 05/02/89
4,825,597 07/194,482 05/02/89
4,825,606 07/090,169 05/02/89
4,825,623 07/143,076 05/02/89
4,825,625 06/942,846 05/02/89
4,825,653 07/201,223 05/02/89
4,825,654 07/231,153 05/02/89
4,825,657 07/149,316 05/02/89
4,825,660 07/054,781 05/02/89
4,825,674 07/145,711 05/02/89
4,825,685 07/159,317 05/02/89
4,825,687 07/096,460 05/02/89
4,825,689 07/253,948 05/02/89
4,825,700 07/207,148 05/02/89
4,825,724 07/084,247 05/02/89
4,825,725 07/072,958 05/02/89
4,825,729 07/021,006 05/02/89
4,825,732 06/930,249 05/02/89
4,825,733 07/101,843 05/02/89
4,825,736 07/095,732 05/02/89
4,825,738 07/160,865 05/02/89
4,825,748 07/069,460 05/02/89
4,825,755 07/041,482 05/02/89
4,825,756 07/221,795 05/02/89
4,825,758 06/938,456 05/02/89
4,825,760 07/120,415 05/02/89
4,825,762 07/227,368 05/02/89
4,825,765 07/097,834 05/02/89
4,825,771 07/008,873 05/02/89
4,825,779 07/121,106 05/02/89
4,825,781 07/155,279 05/02/89
4,825,782 07/170,922 05/02/89
4,825,783 07/066,865 05/02/89
4,825,789 07/229,389 05/02/89
4,825,796 07/230,177 05/02/89
4,825,807 07/218,300 05/02/89
4,825,810 07/097,538 05/02/89
4,825,817 07/093,954 05/02/89
4,825,819 06/893,658 05/02/89
4,825,822 06/900,844 05/02/89
4,825,825 07/107,508 05/02/89
4,825,829 07/179,506 05/02/89
4,825,830 07/078,596 05/02/89
4,825,831 07/134,158 05/02/89
4,825,832 07/183,715 05/02/89
4,825,834 07/130,635 05/02/89
4,825,855 07/177,857 05/02/89
4,825,872 07/229,518 05/02/89
4,825,879 07/107,085 05/02/89
4,825,883 07/159,216 05/02/89
4,825,887 07/158,665 05/02/89
4,825,893 07/186,048 05/02/89
4,825,895 07/063,545 05/02/89
4,825,903 07/112,635 05/02/89
4,825,907 07/209,662 05/02/89
4,825,912 07/077,672 05/02/89
4,825,914 07/040,549 05/02/89
4,825,923 07/096,641 05/02/89
4,825,929 07/166,040 05/02/89
4,825,930 07/098,188 05/02/89
4,825,935 07/130,601 05/02/89
4,825,939 06/886,755 05/02/89
4,825,948 07/026,377 05/02/89
4,825,954 07/155,566 05/02/89
4,825,973 07/087,003 05/02/89
4,825,974 07/074,922 05/02/89
4,825,980 06/579,260 05/02/89
4,825,982 07/026,276 05/02/89
4,825,984 07/021,034 05/02/89
4,825,993 07/095,207 05/02/89
4,825,994 06/414,319 05/02/89
4,825,999 07/052,949 05/02/89
4,826,003 07/167,990 05/02/89
4,826,009 07/225,506 05/02/89
4,826,010 07/214,775 05/02/89
4,826,011 07/067,789 05/02/89
4,826,012 07/172,184 05/02/89
4,826,020 07/036,363 05/02/89
4,826,025 07/121,537 05/02/89
4,826,026 07/185,080 05/02/89
4,826,035 07/046,280 05/02/89
4,826,040 07/080,750 05/02/89
4,826,041 06/897,411 05/02/89
4,826,044 07/204,139 05/02/89
4,826,046 07/060,336 05/02/89
4,826,049 07/082,473 05/02/89
4,826,055 06/710,366 05/02/89
4,826,058 07/116,296 05/02/89
4,826,059 07/076,333 05/02/89
4,826,073 07/112,969 05/02/89
4,826,076 07/116,571 05/02/89
4,826,079 07/187,903 05/02/89
4,826,081 07/088,416 05/02/89
4,826,092 07/069,829 05/02/89
4,826,093 07/119,917 05/02/89
4,826,095 07/143,981 05/02/89
4,826,096 07/185,615 05/02/89
4,826,107 07/037,881 05/02/89
4,826,109 07/217,624 05/02/89
4,826,120 07/085,915 05/02/89
4,826,121 07/080,727 05/02/89
4,826,130 07/122,715 05/02/89
4,826,133 07/229,134 05/02/89
4,826,142 07/093,006 05/02/89
4,826,184 07/034,985 05/02/89
4,826,202 06/948,334 05/02/89
4,826,209 07/100,130 05/02/89
4,826,211 07/076,757 05/02/89
4,826,217 06/846,020 05/02/89
4,826,222 07/112,702 05/02/89
4,826,224 07/090,331 05/02/89
4,826,226 07/118,051 05/02/89
4,826,239 07/082,192 05/02/89
4,826,241 07/141,481 05/02/89
4,826,243 07/067,140 05/02/89
4,826,245 07/139,326 05/02/89
4,826,246 07/081,193 05/02/89
4,826,248 07/114,662 05/02/89
4,826,256 07/115,667 05/02/89
4,826,257 07/161,107 05/02/89
4,826,262 07/164,456 05/02/89
4,826,263 06/750,726 05/02/89
4,826,294 07/164,336 05/02/89
4,826,323 07/197,517 05/02/89
4,826,324 07/132,433 05/02/89
4,826,331 07/168,860 05/02/89
4,826,333 06/867,010 05/02/89
4,826,337 07/122,845 05/02/89
4,826,339 07/146,685 05/02/89
4,826,340 07/139,848 05/02/89
4,826,366 06/794,548 05/02/89
4,826,371 07/182,700 05/02/89
4,826,375 07/085,822 05/02/89
4,826,378 07/012,430 05/02/89
4,826,391 07/158,732 05/02/89
4,826,395 07/179,146 05/02/89
4,826,397 07/212,827 05/02/89
4,826,403 07/049,409 05/02/89
4,826,409 07/165,848 05/02/89
4,826,411 06/722,593 05/02/89
4,826,412 07/141,419 05/02/89
4,826,416 07/202,130 05/02/89
4,826,425 07/110,100 05/02/89
4,826,429 07/144,186 05/02/89
4,826,439 07/020,817 05/02/89
4,826,441 07/095,081 05/02/89
4,826,445 07/246,881 05/02/89
4,826,446 07/190,025 05/02/89
4,826,450 07/153,628 05/02/89
4,826,451 07/131,885 05/02/89
4,826,455 07/208,717 05/02/89
4,826,456 07/133,850 05/02/89
4,826,461 07/117,998 05/02/89
4,826,464 07/100,211 05/02/89
4,826,465 06/865,790 05/02/89
4,826,471 07/194,094 05/02/89
4,826,476 07/030,511 05/02/89
4,826,485 06/629,819 05/02/89
4,826,487 07/046,244 05/02/89
4,826,505 07/153,790 05/02/89
4,826,517 07/188,249 05/02/89
4,826,518 07/072,091 05/02/89
4,826,532 07/134,232 05/02/89
4,826,533 07/102,615 05/02/89
4,826,536 07/001,889 05/02/89
4,826,538 07/126,737 05/02/89
4,826,540 07/002,111 05/02/89
4,826,543 07/120,315 05/02/89
4,826,544 07/136,796 05/02/89
4,826,548 07/173,291 05/02/89
4,826,550 06/933,630 05/02/89
4,826,555 07/074,000 05/02/89
4,826,558 07/217,041 05/02/89
4,826,559 07/031,296 05/02/89
4,826,561 07/061,291 05/02/89
4,826,564 07/115,140 05/02/89
4,826,578 07/221,999 05/02/89
4,826,579 06/946,694 05/02/89
4,826,582 06/893,438 05/02/89
4,826,584 07/038,973 05/02/89
4,826,591 07/104,475 05/02/89
4,826,594 07/149,490 05/02/89
4,826,606 07/047,425 05/02/89
4,826,610 07/003,445 05/02/89
4,826,614 06/920,332 05/02/89
4,826,622 06/791,637 05/02/89
4,826,623 06/761,579 05/02/89
4,826,640 07/081,456 05/02/89
4,826,643 07/212,072 05/02/89
4,826,648 07/084,348 05/02/89
4,826,651 07/021,474 05/02/89
4,826,654 06/946,960 05/02/89
4,826,658 07/051,467 05/02/89
4,826,671 07/024,564 05/02/89
4,826,681 06/833,005 05/02/89
4,826,687 06/867,539 05/02/89
4,826,688 06/930,138 05/02/89
4,826,694 06/848,144 05/02/89
4,826,702 07/231,611 05/02/89
4,826,715 07/146,400 05/02/89
4,826,717 07/125,543 05/02/89
4,826,726 06/877,944 05/02/89
4,826,733 06/937,276 05/02/89
4,826,735 06/905,507 05/02/89
4,826,737 06/882,632 05/02/89
4,826,741 07/057,377 05/02/89
4,826,746 07/056,545 05/02/89
4,826,764 06/756,136 05/02/89
4,826,768 07/043,015 05/02/89
4,826,769 06/693,028 05/02/89
4,826,782 07/040,447 05/02/89
4,826,788 07/062,363 05/02/89
4,826,789 07/022,944 05/02/89
4,826,790 07/229,650 05/02/89
4,826,814 07/046,189 05/02/89
4,826,816 06/784,000 05/02/89
4,826,846 07/220,638 05/02/89
4,826,853 06/925,342 05/02/89
4,826,854 07/122,817 05/02/89
4,826,872 07/121,919 05/02/89
4,826,877 06/911,794 05/02/89
4,826,886 07/276,937 05/02/89
4,826,892 07/044,891 05/02/89
4,826,894 07/052,093 05/02/89
4,826,895 07/139,616 05/02/89
4,826,900 07/175,813 05/02/89
4,826,914 07/105,125 05/02/89
4,826,917 07/046,332 05/02/89
4,826,931 07/107,336 05/02/89
4,826,934 07/096,527 05/02/89
4,826,941 07/134,373 05/02/89
4,826,943 07/078,268 05/02/89
4,826,947 07/072,187 05/02/89
4,826,948 07/196,920 05/02/89
4,826,956 07/196,711 05/02/89
4,826,959 07/150,264 05/02/89
4,826,964 06/856,678 05/02/89
4,826,971 06/625,383 05/02/89
4,826,985 07/216,063 05/02/89
4,826,990 07/103,224 05/02/89
4,826,995 07/125,093 05/02/89
4,826,997 06/893,125 05/02/89
4,827,003 06/874,006 05/02/89
4,827,011 06/679,790 05/02/89
4,827,012 07/159,252 05/02/89
4,827,014 07/177,084 05/02/89
4,827,016 07/075,579 05/02/89
4,827,018 07/112,203 05/02/89
4,827,021 07/164,663 05/02/89
4,827,025 07/097,800 05/02/89
4,827,034 07/146,286 05/02/89
4,827,048 07/168,022 05/02/89
4,827,062 06/844,025 05/02/89
4,827,063 07/100,639 05/02/89
4,827,066 07/197,782 05/02/89
4,827,067 07/246,577 05/02/89
4,827,069 07/157,830 05/02/89
4,827,078 07/071,926 05/02/89
4,827,083 07/180,585 05/02/89
4,827,086 07/116,034 05/02/89
4,827,097 06/860,632 05/02/89
4,827,104 06/919,393 05/02/89
4,827,107 07/091,435 05/02/89
4,827,117 07/180,997 05/02/89
4,827,118 07/071,797 05/02/89
4,827,119 07/149,322 05/02/89
4,827,127 06/922,715 05/02/89
4,827,134 07/119,704 05/02/89
4,827,143 07/030,436 05/02/89
4,827,152 07/182,543 05/02/89
4,827,157 07/125,470 05/02/89
4,827,162 07/020,933 05/02/89
4,827,163 06/835,957 05/02/89
4,827,175 07/172,526 05/02/89
4,827,184 07/145,797 05/02/89
4,827,187 07/175,882 05/02/89
4,827,188 07/101,267 05/02/89
4,827,192 07/026,302 05/02/89
4,827,193 07/046,143 05/02/89
4,827,200 07/176,774 05/02/89
4,827,201 07/103,016 05/02/89
4,827,203 07/131,046 05/02/89
4,827,204 06/669,278 05/02/89
4,827,209 07/076,842 05/02/89
4,827,224 07/039,392 05/02/89
4,827,225 07/206,058 05/02/89
4,827,233 07/160,728 05/02/89
4,827,241 07/116,085 05/02/89
4,827,258 07/163,522 05/02/89
4,827,263 07/118,656 05/02/89
4,827,266 06/830,846 05/02/89
4,827,270 07/130,646 05/02/89
4,827,279 07/207,565 05/02/89
4,827,282 07/239,356 05/02/89
4,827,316 07/165,486 05/02/89
4,827,317 07/066,493 05/02/89
4,827,318 06/880,378 05/02/89
4,827,327 07/214,838 05/02/89
4,827,333 07/052,166 05/02/89
4,827,335 07/088,119 05/02/89
4,827,339 07/117,169 05/02/89
4,827,368 07/097,173 05/02/89
4,827,370 07/136,828 05/02/89
4,827,372 07/205,256 05/02/89
4,827,374 07/123,252 05/02/89
4,827,378 07/206,781 05/02/89
4,827,379 07/127,460 05/02/89
4,827,385 07/186,796 05/02/89
4,827,399 07/102,618 05/02/89
4,827,401 06/664,284 05/02/89
4,827,408 06/867,450 05/02/89
4,827,410 06/887,316 05/02/89
4,827,426 07/050,488 05/02/89
4,827,432 06/910,670 05/02/89
4,827,437 06/910,088 05/02/89
4,827,440 07/055,281 05/02/89
4,827,444 06/884,173 05/02/89
4,827,447 06/873,756 05/02/89
4,827,463 07/164,309 05/02/89
4,827,469 07/057,885 05/02/89
4,827,470 07/116,661 05/02/89
4,827,474 07/133,701 05/02/89
4,827,479 06/676,338 05/02/89
4,827,480 07/018,016 05/02/89
4,827,503 07/110,460 05/02/89
4,827,505 06/897,914 05/02/89
4,827,521 06/845,201 05/02/89
4,827,524 07/181,222 05/02/89
4,827,525 07/192,354 05/02/89
4,827,532 06/841,580 05/02/89
PATENTS WHICH EXPIRED ON April 27, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,204,998 07/885,443 04/27/93
5,205,003 07/947,473 04/27/93
5,205,005 07/926,260 04/27/93
5,205,007 07/759,188 04/27/93
5,205,022 07/895,735 04/27/93
5,205,034 07/810,226 04/27/93
5,205,035 07/825,146 04/27/93
5,205,039 07/791,340 04/27/93
5,205,042 07/774,220 04/27/93
5,205,044 07/790,338 04/27/93
5,205,050 07/814,398 04/27/93
5,205,052 07/825,394 04/27/93
5,205,054 07/884,144 04/27/93
5,205,058 07/514,506 04/27/93
5,205,061 07/815,383 04/27/93
5,205,066 07/954,868 04/27/93
5,205,067 07/770,250 04/27/93
5,205,069 07/769,657 04/27/93
5,205,071 07/946,018 04/27/93
5,205,076 07/676,762 04/27/93
5,205,080 07/828,261 04/27/93
5,205,083 07/782,369 04/27/93
5,205,086 07/865,757 04/27/93
5,205,095 07/705,437 04/27/93
5,205,099 07/618,242 04/27/93
5,205,101 07/715,576 04/27/93
5,205,107 07/890,020 04/27/93
5,205,120 07/811,669 04/27/93
5,205,124 07/821,204 04/27/93
5,205,128 07/726,841 04/27/93
5,205,138 07/818,137 04/27/93
5,205,139 07/810,388 04/27/93
5,205,141 07/635,484 04/27/93
5,205,147 07/738,156 04/27/93
5,205,158 07/736,576 04/27/93
5,205,160 07/756,917 04/27/93
5,205,172 07/764,030 04/27/93
5,205,177 07/644,706 04/27/93
5,205,178 07/893,573 04/27/93
5,205,180 07/611,825 04/27/93
5,205,188 07/786,809 04/27/93
5,205,194 07/924,758 04/27/93
5,205,198 07/786,246 04/27/93
5,205,208 07/917,313 04/27/93
5,205,209 07/878,935 04/27/93
5,205,210 07/861,903 04/27/93
5,205,221 07/526,673 04/27/93
5,205,223 07/689,704 04/27/93
5,205,228 07/803,878 04/27/93
5,205,231 07/838,536 04/27/93
5,205,232 07/573,369 04/27/93
5,205,235 07/855,354 04/27/93
5,205,240 07/768,311 04/27/93
5,205,245 07/707,642 04/27/93
5,205,262 07/427,855 04/27/93
5,205,268 07/705,299 04/27/93
5,205,269 07/582,519 04/27/93
5,205,270 07/890,845 04/27/93
5,205,276 07/795,507 04/27/93
5,205,277 07/872,148 04/27/93
5,205,280 07/632,131 04/27/93
5,205,282 07/792,688 04/27/93
5,205,293 07/785,036 04/27/93
5,205,296 07/885,579 04/27/93
5,205,309 07/970,770 04/27/93
5,205,312 07/893,213 04/27/93
5,205,320 07/731,814 04/27/93
5,205,321 07/795,539 04/27/93
5,205,325 07/791,069 04/27/93
5,205,332 07/892,339 04/27/93
5,205,337 07/754,851 04/27/93
5,205,341 07/485,748 04/27/93
5,205,346 07/897,236 04/27/93
5,205,351 07/858,931 04/27/93
5,205,357 07/550,338 04/27/93
5,205,362 07/819,832 04/27/93
5,205,372 07/730,165 04/27/93
5,205,390 07/525,170 04/27/93
5,205,392 07/773,851 04/27/93
5,205,393 07/838,298 04/27/93
5,205,395 07/714,155 04/27/93
5,205,407 07/867,858 04/27/93
5,205,410 07/851,789 04/27/93
5,205,413 07/886,799 04/27/93
5,205,414 07/716,068 04/27/93
5,205,417 07/803,951 04/27/93
5,205,427 07/852,687 04/27/93
5,205,428 07/839,811 04/27/93
5,205,433 07/839,106 04/27/93
5,205,434 07/896,136 04/27/93
5,205,445 07/806,050 04/27/93
5,205,449 07/954,158 04/27/93
5,205,452 07/777,076 04/27/93
5,205,471 07/848,083 04/27/93
5,205,478 07/708,928 04/27/93
5,205,486 07/818,905 04/27/93
5,205,487 07/844,170 04/27/93
5,205,488 07/673,799 04/27/93
5,205,489 07/855,167 04/27/93
5,205,498 07/577,686 04/27/93
5,205,499 07/725,275 04/27/93
5,205,500 07/649,658 04/27/93
5,205,501 07/833,792 04/27/93
5,205,502 07/766,469 04/27/93
5,205,505 07/722,827 04/27/93
5,205,527 07/837,033 04/27/93
5,205,530 07/786,454 04/27/93
5,205,533 07/712,124 04/27/93
5,205,539 07/893,136 04/27/93
5,205,545 07/749,252 04/27/93
5,205,560 07/766,825 04/27/93
5,205,562 07/719,489 04/27/93
5,205,570 07/790,823 04/27/93
5,205,571 07/888,525 04/27/93
5,205,572 07/750,648 04/27/93
5,205,573 07/870,090 04/27/93
5,205,580 07/717,822 04/27/93
5,205,592 07/719,840 04/27/93
5,205,595 07/902,855 04/27/93
5,205,596 07/934,241 04/27/93
5,205,597 07/787,558 04/27/93
5,205,598 07/925,341 04/27/93
5,205,605 07/858,398 04/27/93
5,205,606 07/800,966 04/27/93
5,205,610 07/772,249 04/27/93
5,205,611 07/807,831 04/27/93
5,205,612 07/701,503 04/27/93
5,205,613 07/716,849 04/27/93
5,205,618 07/719,414 04/27/93
5,205,623 07/786,672 04/27/93
5,205,624 07/667,915 04/27/93
5,205,625 07/736,719 04/27/93
5,205,626 07/867,343 04/27/93
5,205,627 07/670,187 04/27/93
5,205,636 07/894,463 04/27/93
5,205,637 07/836,103 04/27/93
5,205,645 07/829,269 04/27/93
5,205,648 07/755,050 04/27/93
5,205,654 07/773,959 04/27/93
5,205,657 07/864,697 04/27/93
5,205,659 07/550,547 04/27/93
5,205,664 07/816,252 04/27/93
5,205,666 07/942,792 04/27/93
5,205,667 07/772,679 04/27/93
5,205,668 07/677,719 04/27/93
5,205,676 07/781,223 04/27/93
5,205,683 07/927,243 04/27/93
5,205,688 07/721,455 04/27/93
5,205,702 07/769,086 04/27/93
5,205,709 07/856,569 04/27/93
5,205,710 07/680,458 04/27/93
5,205,714 07/852,833 04/27/93
5,205,721 07/654,833 04/27/93
5,205,730 07/924,674 04/27/93
5,205,731 07/837,872 04/27/93
5,205,733 07/837,751 04/27/93
5,205,734 07/824,258 04/27/93
5,205,736 07/858,340 04/27/93
5,205,737 07/689,929 04/27/93
5,205,738 07/863,643 04/27/93
5,205,741 07/744,763 04/27/93
5,205,744 07/616,114 04/27/93
5,205,746 07/913,991 04/27/93
5,205,748 07/845,414 04/27/93
5,205,750 07/802,917 04/27/93
5,205,757 07/844,189 04/27/93
5,205,765 07/618,495 04/27/93
5,205,766 07/894,376 04/27/93
5,205,769 07/930,073 04/27/93
5,205,772 07/823,388 04/27/93
5,205,778 07/821,083 04/27/93
5,205,784 07/751,809 04/27/93
5,205,785 07/834,933 04/27/93
5,205,790 07/774,380 04/27/93
5,205,794 06/551,211 04/27/93
5,205,819 07/813,756 04/27/93
5,205,826 07/983,144 04/27/93
5,205,828 07/782,205 04/27/93
5,205,829 07/477,625 04/27/93
5,205,833 07/747,395 04/27/93
5,205,835 07/651,811 04/27/93
5,205,838 07/825,377 04/27/93
5,205,842 07/834,787 04/27/93
5,205,845 07/817,306 04/27/93
5,205,847 07/759,493 04/27/93
5,205,853 07/704,544 04/27/93
5,205,855 07/578,254 04/27/93
5,205,856 07/834,430 04/27/93
5,205,857 07/813,975 04/27/93
5,205,858 07/833,060 04/27/93
5,205,861 07/774,074 04/27/93
5,205,864 07/811,362 04/27/93
5,205,865 07/763,684 04/27/93
5,205,866 07/857,074 04/27/93
5,205,871 07/531,720 04/27/93
5,205,872 07/499,442 04/27/93
5,205,876 07/870,860 04/27/93
5,205,883 07/687,657 04/27/93
5,205,886 07/898,167 04/27/93
5,205,910 07/752,120 04/27/93
5,205,912 07/858,917 04/27/93
5,205,922 07/618,190 04/27/93
5,205,925 07/828,622 04/27/93
5,205,926 07/849,114 04/27/93
5,205,930 07/925,515 04/27/93
5,205,931 07/737,063 04/27/93
5,205,933 07/589,547 04/27/93
5,205,944 07/730,345 04/27/93
5,205,945 07/779,452 04/27/93
5,205,947 07/722,064 04/27/93
5,205,955 07/725,538 04/27/93
5,205,956 07/904,919 04/27/93
5,205,958 07/671,277 04/27/93
5,205,959 07/835,922 04/27/93
5,205,962 07/651,392 04/27/93
5,205,964 07/789,521 04/27/93
5,205,965 07/822,981 04/27/93
5,205,967 07/857,977 04/27/93
5,205,975 07/501,477 04/27/93
5,205,977 07/758,240 04/27/93
5,205,978 07/842,619 04/27/93
5,205,979 07/828,233 04/27/93
5,205,993 07/808,953 04/27/93
5,205,996 07/838,635 04/27/93
5,206,000 07/287,444 04/27/93
5,206,006 07/852,816 04/27/93
5,206,007 07/633,677 04/27/93
5,206,009 07/899,835 04/27/93
5,206,011 07/614,309 04/27/93
5,206,019 07/869,108 04/27/93
5,206,021 07/610,392 04/27/93
5,206,022 07/875,198 04/27/93
5,206,032 07/719,908 04/27/93
5,206,036 07/603,280 04/27/93
5,206,039 07/764,911 04/27/93
5,206,045 07/666,256 04/27/93
5,206,047 07/710,784 04/27/93
5,206,048 07/707,461 04/27/93
5,206,049 07/834,883 04/27/93
5,206,050 07/649,432 04/27/93
5,206,062 07/887,582 04/27/93
5,206,074 07/657,795 04/27/93
5,206,092 07/314,863 04/27/93
5,206,093 07/773,497 04/27/93
5,206,096 07/636,226 04/27/93
5,206,103 07/640,712 04/27/93
5,206,107 07/814,515 04/27/93
5,206,108 07/812,659 04/27/93
5,206,114 07/619,080 04/27/93
5,206,117 07/850,623 04/27/93
5,206,118 07/722,391 04/27/93
5,206,123 07/835,856 04/27/93
5,206,126 07/829,942 04/27/93
5,206,142 07/874,312 04/27/93
5,206,149 07/623,426 04/27/93
5,206,157 07/250,052 04/27/93
5,206,162 07/778,240 04/27/93
5,206,170 07/769,534 04/27/93
5,206,171 07/628,156 04/27/93
5,206,172 07/714,935 04/27/93
5,206,185 07/707,449 04/27/93
5,206,188 07/700,251 04/27/93
5,206,193 07/810,227 04/27/93
5,206,202 07/735,861 04/27/93
5,206,203 07/795,491 04/27/93
5,206,210 07/734,745 04/27/93
5,206,211 07/751,568 04/27/93
5,206,215 07/850,926 04/27/93
5,206,218 07/332,871 04/27/93
5,206,221 07/643,538 04/27/93
5,206,223 07/583,851 04/27/93
5,206,231 07/757,167 04/27/93
5,206,234 07/718,075 04/27/93
5,206,237 07/699,849 04/27/93
5,206,238 07/870,157 04/27/93
5,206,240 07/709,686 04/27/93
5,206,253 07/776,407 04/27/93
5,206,255 07/588,549 04/27/93
5,206,257 07/488,108 04/27/93
5,206,260 07/789,223 04/27/93
5,206,264 07/787,062 04/27/93
5,206,265 07/646,789 04/27/93
5,206,271 07/856,756 04/27/93
5,206,281 07/496,665 04/27/93
5,206,284 07/728,285 04/27/93
5,206,285 07/631,562 04/27/93
5,206,286 07/728,807 04/27/93
5,206,287 07/758,041 04/27/93
5,206,298 07/627,333 04/27/93
5,206,299 07/851,223 04/27/93
5,206,303 07/634,846 04/27/93
5,206,312 07/729,508 04/27/93
5,206,314 07/938,725 04/27/93
5,206,315 07/335,777 04/27/93
5,206,318 07/855,159 04/27/93
5,206,321 07/770,791 04/27/93
5,206,323 07/801,134 04/27/93
5,206,326 07/917,700 04/27/93
5,206,330 07/645,918 04/27/93
5,206,331 07/714,844 04/27/93
5,206,339 07/698,147 04/27/93
5,206,340 07/452,369 04/27/93
5,206,343 07/360,177 04/27/93
5,206,345 07/562,008 04/27/93
5,206,355 07/855,355 04/27/93
5,206,356 07/730,227 04/27/93
5,206,380 07/894,814 04/27/93
5,206,388 07/872,735 04/27/93
5,206,389 07/721,751 04/27/93
5,206,395 07/880,458 04/27/93
5,206,396 07/558,047 04/27/93
5,206,400 06/882,258 04/27/93
5,206,405 07/927,886 04/27/93
5,206,406 07/933,142 04/27/93
5,206,424 07/941,505 04/27/93
5,206,427 07/741,985 04/27/93
5,206,432 07/920,717 04/27/93
5,206,434 07/615,939 04/27/93
5,206,440 07/920,514 04/27/93
5,206,443 07/871,093 04/27/93
5,206,445 07/695,384 04/27/93
5,206,460 07/734,902 04/27/93
5,206,464 07/702,276 04/27/93
5,206,466 07/671,955 04/27/93
5,206,468 07/719,136 04/27/93
5,206,469 07/730,680 04/27/93
5,206,477 07/894,676 04/27/93
5,206,481 07/725,628 04/27/93
5,206,485 07/591,412 04/27/93
5,206,489 07/929,465 04/27/93
5,206,490 07/646,885 04/27/93
5,206,515 07/752,092 04/27/93
5,206,520 07/902,746 04/27/93
5,206,521 07/681,909 04/27/93
5,206,523 07/751,800 04/27/93
5,206,525 07/743,324 04/27/93
5,206,527 07/788,149 04/27/93
5,206,537 07/587,051 04/27/93
5,206,541 07/693,310 04/27/93
5,206,548 07/716,775 04/27/93
5,206,573 07/804,831 04/27/93
5,206,575 07/610,248 04/27/93
5,206,576 07/759,798 04/27/93
5,206,588 07/345,037 04/27/93
5,206,595 07/757,176 04/27/93
5,206,599 07/739,176 04/27/93
5,206,605 07/850,672 04/27/93
5,206,610 07/709,311 04/27/93
5,206,613 07/794,267 04/27/93
5,206,616 07/728,232 04/27/93
5,206,630 07/631,457 04/27/93
5,206,633 07/747,217 04/27/93
5,206,639 07/604,044 04/27/93
5,206,644 07/765,955 04/27/93
5,206,653 07/889,455 04/27/93
5,206,680 07/862,845 04/27/93
5,206,702 07/592,239 04/27/93
5,206,709 07/763,975 04/27/93
5,206,725 07/791,150 04/27/93
5,206,730 07/844,932 04/27/93
5,206,746 07/729,499 04/27/93
5,206,751 07/683,325 04/27/93
5,206,756 07/630,996 04/27/93
5,206,760 07/857,253 04/27/93
5,206,769 07/862,919 04/27/93
5,206,772 07/638,822 04/27/93
5,206,775 07/704,772 04/27/93
5,206,776 07/628,449 04/27/93
5,206,778 07/701,490 04/27/93
5,206,780 07/496,433 04/27/93
5,206,786 07/800,594 04/27/93
5,206,792 07/787,132 04/27/93
5,206,798 07/899,849 04/27/93
5,206,801 07/761,455 04/27/93
5,206,802 07/761,113 04/27/93
5,206,807 07/310,678 04/27/93
5,206,813 07/798,365 04/27/93
5,206,819 07/579,358 04/27/93
5,206,820 07/576,304 04/27/93
5,206,822 07/792,907 04/27/93
5,206,829 07/603,935 04/27/93
5,206,838 07/914,595 04/27/93
5,206,843 07/737,031 04/27/93
5,206,859 07/649,862 04/27/93
5,206,860 07/576,302 04/27/93
5,206,861 07/574,639 04/27/93
5,206,862 07/667,611 04/27/93
5,206,870 07/775,812 04/27/93
5,206,873 07/700,174 04/27/93
5,206,884 07/603,104 04/27/93
5,206,888 07/784,922 04/27/93
5,206,892 07/869,445 04/27/93
5,206,898 07/784,063 04/27/93
5,206,907 07/693,879 04/27/93
5,206,913 07/657,177 04/27/93
5,206,922 07/576,947 04/27/93
5,206,930 07/833,567 04/27/93
5,206,940 07/750,512 04/27/93
5,206,944 07/535,002 04/27/93
5,206,949 07/390,524 04/27/93
5,206,950 07/767,557 04/27/93
PATENTS WHICH EXPIRED ON April 29, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,623,728 08/386,539 04/29/97
5,623,733 08/365,011 04/29/97
5,623,737 08/336,243 04/29/97
5,623,739 08/541,515 04/29/97
5,623,742 08/414,123 04/29/97
5,623,744 08/569,342 04/29/97
5,623,745 08/590,816 04/29/97
5,623,747 08/505,204 04/29/97
5,623,751 08/491,523 04/29/97
5,623,755 08/583,659 04/29/97
5,623,761 08/417,384 04/29/97
5,623,762 08/291,799 04/29/97
5,623,764 08/453,213 04/29/97
5,623,765 08/569,563 04/29/97
5,623,768 08/309,952 04/29/97
5,623,770 08/352,673 04/29/97
5,623,773 08/298,364 04/29/97
5,623,774 08/642,593 04/29/97
5,623,788 08/612,235 04/29/97
5,623,790 08/232,867 04/29/97
5,623,791 08/330,842 04/29/97
5,623,792 08/653,282 04/29/97
5,623,794 08/516,995 04/29/97
5,623,795 08/658,349 04/29/97
5,623,800 08/492,648 04/29/97
5,623,813 08/514,005 04/29/97
5,623,822 08/449,399 04/29/97
5,623,831 08/435,432 04/29/97
5,623,832 08/325,669 04/29/97
5,623,839 08/416,968 04/29/97
5,623,850 08/614,312 04/29/97
5,623,856 08/456,185 04/29/97
5,623,864 08/423,170 04/29/97
5,623,866 08/694,305 04/29/97
5,623,868 08/401,963 04/29/97
5,623,869 08/599,502 04/29/97
5,623,880 08/448,229 04/29/97
5,623,881 08/606,441 04/29/97
5,623,883 08/406,618 04/29/97
5,623,891 08/374,232 04/29/97
5,623,900 08/387,912 04/29/97
5,623,905 08/318,295 04/29/97
5,623,914 08/434,799 04/29/97
5,623,916 08/401,723 04/29/97
5,623,921 08/633,845 04/29/97
5,623,922 08/367,733 04/29/97
5,623,937 08/482,813 04/29/97
5,623,945 08/487,844 04/29/97
5,623,947 08/297,596 04/29/97
5,623,948 08/429,824 04/29/97
5,623,950 08/437,873 04/29/97
5,623,951 08/643,312 04/29/97
5,623,952 08/589,395 04/29/97
5,623,953 08/529,031 04/29/97
5,623,956 08/525,413 04/29/97
5,623,957 08/379,951 04/29/97
5,623,964 08/514,908 04/29/97
5,623,974 08/327,705 04/29/97
5,623,977 08/596,385 04/29/97
5,623,992 08/523,101 04/29/97
5,623,994 08/586,225 04/29/97
5,623,996 08/508,322 04/29/97
5,623,998 08/584,063 04/29/97
5,624,006 08/523,332 04/29/97
5,624,012 08/579,287 04/29/97
5,624,014 08/302,918 04/29/97
5,624,015 08/450,531 04/29/97
5,624,022 08/590,833 04/29/97
5,624,027 08/438,419 04/29/97
5,624,029 08/666,629 04/29/97
5,624,036 08/552,239 04/29/97
5,624,037 08/501,667 04/29/97
5,624,038 08/520,051 04/29/97
5,624,041 08/287,279 04/29/97
5,624,043 08/617,570 04/29/97
5,624,046 08/388,808 04/29/97
5,624,060 08/432,250 04/29/97
5,624,078 08/627,945 04/29/97
5,624,088 08/521,366 04/29/97
5,624,093 08/463,712 04/29/97
5,624,098 08/420,584 04/29/97
5,624,112 08/549,333 04/29/97
5,624,113 08/544,175 04/29/97
5,624,118 08/706,782 04/29/97
5,624,134 08/490,123 04/29/97
5,624,135 08/369,895 04/29/97
5,624,138 08/501,043 04/29/97
5,624,146 08/630,945 04/29/97
5,624,152 08/304,695 04/29/97
5,624,154 08/586,540 04/29/97
5,624,160 08/304,799 04/29/97
5,624,165 08/548,420 04/29/97
5,624,167 08/416,059 04/29/97
5,624,168 08/294,904 04/29/97
5,624,169 08/404,561 04/29/97
5,624,178 08/538,384 04/29/97
5,624,179 08/399,713 04/29/97
5,624,181 08/553,181 04/29/97
5,624,183 08/422,858 04/29/97
5,624,190 08/446,598 04/29/97
5,624,199 08/536,799 04/29/97
5,624,201 08/505,306 04/29/97
5,624,210 08/380,527 04/29/97
5,624,217 08/580,939 04/29/97
5,624,218 08/509,429 04/29/97
5,624,221 08/505,471 04/29/97
5,624,222 08/496,969 04/29/97
5,624,224 08/597,662 04/29/97
5,624,225 08/447,960 04/29/97
5,624,230 08/580,068 04/29/97
5,624,238 08/654,083 04/29/97
5,624,239 08/355,499 04/29/97
5,624,241 08/212,031 04/29/97
5,624,244 08/581,935 04/29/97
5,624,253 08/273,204 04/29/97
5,624,254 08/503,399 04/29/97
5,624,255 08/424,543 04/29/97
5,624,264 08/536,309 04/29/97
5,624,276 08/447,963 04/29/97
5,624,277 08/520,221 04/29/97
5,624,279 08/367,797 04/29/97
5,624,285 08/514,222 04/29/97
5,624,286 08/491,836 04/29/97
5,624,289 08/432,300 04/29/97
5,624,291 08/579,026 04/29/97
5,624,314 08/541,113 04/29/97
5,624,317 08/182,582 04/29/97
5,624,319 08/528,813 04/29/97
5,624,320 08/613,666 04/29/97
5,624,323 08/524,099 04/29/97
5,624,325 08/537,453 04/29/97
5,624,328 08/639,965 04/29/97
5,624,330 08/546,307 04/29/97
5,624,333 08/641,945 04/29/97
5,624,354 08/694,761 04/29/97
5,624,361 08/688,187 04/29/97
5,624,362 08/646,692 04/29/97
5,624,364 08/617,819 04/29/97
5,624,368 08/580,589 04/29/97
5,624,379 08/543,180 04/29/97
5,624,384 08/434,865 04/29/97
5,624,387 08/505,685 04/29/97
5,624,391 08/349,430 04/29/97
5,624,401 08/532,665 04/29/97
5,624,404 08/496,400 04/29/97
5,624,406 08/500,901 04/29/97
5,624,407 08/343,532 04/29/97
5,624,408 08/387,945 04/29/97
5,624,412 08/500,824 04/29/97
5,624,416 08/373,242 04/29/97
5,624,419 08/427,671 04/29/97
5,624,426 08/642,738 04/29/97
5,624,450 08/534,639 04/29/97
5,624,458 08/549,836 04/29/97
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