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 January 31, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,800,600 06/898,439 01/31/89
4,800,602 07/156,417 01/31/89
4,800,605 07/091,694 01/31/89
4,800,607 07/040,644 01/31/89
4,800,613 07/180,190 01/31/89
4,800,618 07/103,676 01/31/89
4,800,623 06/913,626 01/31/89
4,800,649 07/145,288 01/31/89
4,800,658 07/071,250 01/31/89
4,800,659 07/071,442 01/31/89
4,800,660 07/138,844 01/31/89
4,800,672 07/052,289 01/31/89
4,800,678 07/088,065 01/31/89
4,800,682 07/103,531 01/31/89
4,800,694 07/033,561 01/31/89
4,800,696 06/942,893 01/31/89
4,800,699 07/085,621 01/31/89
4,800,703 06/893,580 01/31/89
4,800,726 07/136,319 01/31/89
4,800,727 07/043,340 01/31/89
4,800,734 07/115,114 01/31/89
4,800,735 07/123,687 01/31/89
4,800,746 07/109,988 01/31/89
4,800,747 07/157,852 01/31/89
4,800,753 06/896,892 01/31/89
4,800,756 06/924,297 01/31/89
4,800,760 07/098,206 01/31/89
4,800,762 07/062,874 01/31/89
4,800,767 07/058,989 01/31/89
4,800,770 06/580,955 01/31/89
4,800,772 07/093,747 01/31/89
4,800,774 07/017,460 01/31/89
4,800,789 07/019,809 01/31/89
4,800,791 06/854,082 01/31/89
4,800,800 07/188,639 01/31/89
4,800,807 07/051,503 01/31/89
4,800,818 06/926,185 01/31/89
4,800,819 06/669,707 01/31/89
4,800,832 07/023,010 01/31/89
4,800,834 07/081,685 01/31/89
4,800,838 07/101,702 01/31/89
4,800,840 06/911,921 01/31/89
4,800,845 07/142,268 01/31/89
4,800,851 07/152,540 01/31/89
4,800,853 07/142,477 01/31/89
4,800,854 07/077,689 01/31/89
4,800,855 07/110,360 01/31/89
4,800,859 07/065,854 01/31/89
4,800,861 07/177,994 01/31/89
4,800,864 07/100,207 01/31/89
4,800,867 06/871,195 01/31/89
4,800,878 07/090,199 01/31/89
4,800,886 06/885,072 01/31/89
4,800,888 07/086,616 01/31/89
4,800,899 06/924,656 01/31/89
4,800,901 07/094,619 01/31/89
4,800,912 06/723,229 01/31/89
4,800,928 07/049,890 01/31/89
4,800,929 07/018,396 01/31/89
4,800,941 07/038,572 01/31/89
4,800,943 07/089,264 01/31/89
4,800,944 07/012,427 01/31/89
4,800,946 07/083,936 01/31/89
4,800,958 07/146,287 01/31/89
4,800,960 07/135,162 01/31/89
4,800,965 07/050,368 01/31/89
4,800,971 07/002,959 01/31/89
4,800,976 07/058,980 01/31/89
4,800,979 06/888,529 01/31/89
4,800,998 07/146,747 01/31/89
4,801,000 07/096,602 01/31/89
4,801,007 07/091,301 01/31/89
4,801,011 07/136,075 01/31/89
4,801,018 07/078,116 01/31/89
4,801,026 06/547,388 01/31/89
4,801,027 07/024,444 01/31/89
4,801,033 07/174,690 01/31/89
4,801,046 07/059,922 01/31/89
4,801,048 07/145,942 01/31/89
4,801,049 07/019,848 01/31/89
4,801,063 07/040,318 01/31/89
4,801,078 07/089,154 01/31/89
4,801,079 07/144,551 01/31/89
4,801,087 07/005,108 01/31/89
4,801,088 07/059,638 01/31/89
4,801,091 07/176,164 01/31/89
4,801,092 07/093,068 01/31/89
4,801,100 06/712,703 01/31/89
4,801,109 07/106,033 01/31/89
4,801,116 07/079,808 01/31/89
4,801,143 06/927,245 01/31/89
4,801,146 06/943,118 01/31/89
4,801,154 06/925,921 01/31/89
4,801,155 07/060,911 01/31/89
4,801,156 07/161,342 01/31/89
4,801,158 07/110,970 01/31/89
4,801,160 06/302,973 01/31/89
4,801,161 07/041,724 01/31/89
4,801,173 06/458,828 01/31/89
4,801,177 07/121,857 01/31/89
4,801,183 06/760,489 01/31/89
4,801,187 06/858,218 01/31/89
4,801,195 06/810,687 01/31/89
4,801,203 07/106,953 01/31/89
4,801,205 06/739,283 01/31/89
4,801,207 07/014,052 01/31/89
4,801,214 07/063,585 01/31/89
4,801,215 07/055,011 01/31/89
4,801,216 06/898,340 01/31/89
4,801,219 07/065,438 01/31/89
4,801,225 07/190,317 01/31/89
4,801,226 07/093,084 01/31/89
4,801,231 07/036,785 01/31/89
4,801,232 07/034,227 01/31/89
4,801,239 07/078,300 01/31/89
4,801,242 07/076,084 01/31/89
4,801,244 07/058,098 01/31/89
4,801,245 07/183,259 01/31/89
4,801,251 07/100,344 01/31/89
4,801,259 07/092,864 01/31/89
4,801,261 07/028,180 01/31/89
4,801,262 07/133,161 01/31/89
4,801,266 07/148,342 01/31/89
4,801,271 07/170,981 01/31/89
4,801,279 07/117,422 01/31/89
4,801,290 07/152,829 01/31/89
4,801,291 07/122,355 01/31/89
4,801,294 06/936,868 01/31/89
4,801,310 07/047,002 01/31/89
4,801,320 07/041,067 01/31/89
4,801,321 07/126,481 01/31/89
4,801,332 07/009,410 01/31/89
4,801,335 06/920,516 01/31/89
4,801,339 06/712,701 01/31/89
4,801,340 07/060,414 01/31/89
4,801,341 07/079,805 01/31/89
4,801,342 07/153,578 01/31/89
4,801,346 06/892,156 01/31/89
4,801,349 07/109,110 01/31/89
4,801,357 07/177,420 01/31/89
4,801,358 07/225,199 01/31/89
4,801,360 06/876,236 01/31/89
4,801,371 07/024,115 01/31/89
4,801,372 06/914,426 01/31/89
4,801,377 06/549,641 01/31/89
4,801,383 06/672,483 01/31/89
4,801,404 07/096,399 01/31/89
4,801,405 07/035,800 01/31/89
4,801,417 07/054,267 01/31/89
4,801,421 07/026,501 01/31/89
4,801,429 07/076,525 01/31/89
4,801,430 06/911,350 01/31/89
4,801,435 06/905,287 01/31/89
4,801,437 06/937,120 01/31/89
4,801,439 06/907,395 01/31/89
4,801,448 06/879,351 01/31/89
4,801,449 06/948,268 01/31/89
4,801,454 06/887,671 01/31/89
4,801,459 06/893,436 01/31/89
4,801,462 07/015,586 01/31/89
4,801,463 07/024,842 01/31/89
4,801,464 07/165,358 01/31/89
4,801,465 07/040,165 01/31/89
4,801,466 06/926,004 01/31/89
4,801,470 07/069,263 01/31/89
4,801,476 07/093,010 01/31/89
4,801,478 07/048,979 01/31/89
4,801,487 06/721,377 01/31/89
4,801,490 06/860,419 01/31/89
4,801,506 07/002,874 01/31/89
4,801,512 07/123,225 01/31/89
4,801,513 06/661,492 01/31/89
4,801,548 07/123,141 01/31/89
4,801,551 06/915,605 01/31/89
4,801,558 07/079,051 01/31/89
4,801,562 07/049,017 01/31/89
4,801,567 06/854,119 01/31/89
4,801,581 06/714,354 01/31/89
4,801,595 06/941,914 01/31/89
4,801,597 06/743,396 01/31/89
4,801,603 06/946,458 01/31/89
4,801,605 07/020,054 01/31/89
4,801,608 06/558,695 01/31/89
4,801,613 07/063,108 01/31/89
4,801,618 07/081,063 01/31/89
4,801,622 07/150,165 01/31/89
4,801,636 07/030,196 01/31/89
4,801,642 07/138,414 01/31/89
4,801,645 07/027,532 01/31/89
4,801,650 07/093,286 01/31/89
4,801,655 07/088,535 01/31/89
4,801,657 07/033,257 01/31/89
4,801,666 07/029,697 01/31/89
4,801,667 07/135,468 01/31/89
4,801,668 07/070,005 01/31/89
4,801,676 07/078,668 01/31/89
4,801,678 06/915,560 01/31/89
4,801,682 06/867,719 01/31/89
4,801,683 07/152,921 01/31/89
4,801,691 07/050,146 01/31/89
4,801,693 07/088,533 01/31/89
4,801,697 06/847,312 01/31/89
4,801,702 06/925,019 01/31/89
4,801,703 06/928,752 01/31/89
4,801,706 07/187,187 01/31/89
4,801,713 07/147,408 01/31/89
4,801,715 06/937,870 01/31/89
4,801,716 07/032,439 01/31/89
4,801,725 07/092,000 01/31/89
4,801,733 06/778,681 01/31/89
4,801,737 06/761,520 01/31/89
4,801,755 07/125,964 01/31/89
4,801,758 07/051,736 01/31/89
4,801,759 07/082,569 01/31/89
4,801,760 07/155,411 01/31/89
4,801,766 07/109,208 01/31/89
4,801,767 07/055,946 01/31/89
4,801,770 07/220,324 01/31/89
4,801,784 07/018,229 01/31/89
4,801,805 07/087,171 01/31/89
4,801,812 07/107,965 01/31/89
4,801,818 07/044,772 01/31/89
4,801,823 07/092,235 01/31/89
4,801,828 06/886,074 01/31/89
4,801,829 07/122,792 01/31/89
4,801,843 07/104,547 01/31/89
4,801,845 07/044,048 01/31/89
4,801,862 07/017,549 01/31/89
4,801,869 07/042,906 01/31/89
4,801,878 07/064,157 01/31/89
4,801,880 07/103,397 01/31/89
4,801,885 07/097,138 01/31/89
4,801,887 07/035,533 01/31/89
4,801,892 07/094,375 01/31/89
4,801,894 07/113,036 01/31/89
4,801,896 07/068,877 01/31/89
4,801,899 06/941,370 01/31/89
4,801,906 07/110,239 01/31/89
4,801,909 07/081,198 01/31/89
4,801,924 07/145,929 01/31/89
4,801,936 07/098,024 01/31/89
4,801,942 06/897,214 01/31/89
4,801,944 07/107,007 01/31/89
4,801,948 07/044,003 01/31/89
4,801,952 07/111,081 01/31/89
4,801,954 07/074,305 01/31/89
4,801,955 07/074,306 01/31/89
4,801,957 07/157,239 01/31/89
4,801,958 07/145,332 01/31/89
4,801,974 07/143,386 01/31/89
4,801,983 06/899,399 01/31/89
4,801,991 07/108,076 01/31/89
4,801,997 07/185,301 01/31/89
4,801,998 07/033,863 01/31/89
4,802,012 07/076,599 01/31/89
4,802,039 07/011,057 01/31/89
4,802,044 06/929,283 01/31/89
4,802,046 07/010,897 01/31/89
4,802,049 07/010,894 01/31/89
4,802,050 07/016,666 01/31/89
4,802,054 07/025,427 01/31/89
4,802,055 07/112,517 01/31/89
4,802,068 07/118,930 01/31/89
4,802,069 07/184,937 01/31/89
4,802,070 07/161,717 01/31/89
4,802,073 07/151,887 01/31/89
4,802,082 07/053,539 01/31/89
4,802,086 07/002,335 01/31/89
4,802,091 06/926,316 01/31/89
4,802,094 06/879,568 01/31/89
4,802,099 06/816,093 01/31/89
4,802,106 06/852,413 01/31/89
4,802,109 07/026,878 01/31/89
4,802,112 06/924,565 01/31/89
4,802,125 07/122,698 01/31/89
4,802,135 06/902,564 01/31/89
4,802,139 07/087,792 01/31/89
4,802,142 07/032,775 01/31/89
4,802,148 06/440,150 01/31/89
4,802,156 07/079,036 01/31/89
4,802,161 06/908,055 01/31/89
4,802,162 06/930,341 01/31/89
4,802,164 07/000,762 01/31/89
4,802,168 07/011,175 01/31/89
4,802,171 07/058,202 01/31/89
4,802,175 06/845,893 01/31/89
4,802,184 07/112,565 01/31/89
4,802,189 06/593,436 01/31/89
4,802,190 07/045,921 01/31/89
4,802,192 07/013,114 01/31/89
4,802,194 07/014,252 01/31/89
4,802,202 07/092,936 01/31/89
4,802,211 06/882,376 01/31/89
4,802,225 06/814,321 01/31/89
4,802,239 06/883,714 01/31/89
PATENTS WHICH EXPIRED ON January 26, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,181,275 07/794,948 01/26/93
5,181,278 07/727,475 01/26/93
5,181,281 07/825,012 01/26/93
5,181,282 07/788,561 01/26/93
5,181,286 07/814,378 01/26/93
5,181,293 07/469,594 01/26/93
5,181,299 07/804,378 01/26/93
5,181,305 07/710,546 01/26/93
5,181,309 07/796,967 01/26/93
5,181,313 07/818,597 01/26/93
5,181,318 07/818,447 01/26/93
5,181,323 07/770,106 01/26/93
5,181,348 07/680,770 01/26/93
5,181,357 07/673,598 01/26/93
5,181,362 07/760,575 01/26/93
5,181,372 07/731,861 01/26/93
5,181,374 07/575,800 01/26/93
5,181,382 07/739,454 01/26/93
5,181,383 07/723,384 01/26/93
5,181,390 07/816,002 01/26/93
5,181,399 07/847,277 01/26/93
5,181,400 07/646,105 01/26/93
5,181,401 07/638,674 01/26/93
5,181,403 07/890,073 01/26/93
5,181,409 07/734,172 01/26/93
5,181,414 07/750,999 01/26/93
5,181,415 07/732,388 01/26/93
5,181,417 07/807,629 01/26/93
5,181,421 07/709,722 01/26/93
5,181,428 07/530,903 01/26/93
5,181,434 07/802,851 01/26/93
5,181,440 07/815,013 01/26/93
5,181,442 07/545,393 01/26/93
5,181,445 07/792,610 01/26/93
5,181,451 07/716,924 01/26/93
5,181,452 07/796,422 01/26/93
5,181,454 07/676,766 01/26/93
5,181,458 07/762,443 01/26/93
5,181,459 07/729,622 01/26/93
5,181,471 07/616,535 01/26/93
5,181,473 07/726,095 01/26/93
5,181,477 07/836,191 01/26/93
5,181,486 07/945,370 01/26/93
5,181,498 07/794,231 01/26/93
5,181,504 07/494,426 01/26/93
5,181,510 07/818,612 01/26/93
5,181,520 07/548,970 01/26/93
5,181,521 07/117,809 01/26/93
5,181,523 07/761,842 01/26/93
5,181,526 07/688,032 01/26/93
5,181,527 07/833,929 01/26/93
5,181,530 07/800,470 01/26/93
5,181,538 07/654,197 01/26/93
5,181,540 07/861,297 01/26/93
5,181,541 07/807,795 01/26/93
5,181,545 07/641,647 01/26/93
5,181,546 07/749,566 01/26/93
5,181,547 07/766,850 01/26/93
5,181,551 07/766,551 01/26/93
5,181,557 07/886,207 01/26/93
5,181,567 07/887,569 01/26/93
5,181,573 07/717,032 01/26/93
5,181,582 07/794,507 01/26/93
5,181,588 07/696,425 01/26/93
5,181,590 07/669,382 01/26/93
5,181,591 07/770,279 01/26/93
5,181,595 07/899,194 01/26/93
5,181,600 07/721,631 01/26/93
5,181,602 07/761,437 01/26/93
5,181,604 07/756,883 01/26/93
5,181,613 07/686,409 01/26/93
5,181,616 07/666,782 01/26/93
5,181,617 07/587,343 01/26/93
5,181,622 07/887,638 01/26/93
5,181,625 07/482,030 01/26/93
5,181,630 07/717,455 01/26/93
5,181,634 07/761,522 01/26/93
5,181,635 07/708,377 01/26/93
5,181,639 07/761,361 01/26/93
5,181,647 07/788,918 01/26/93
5,181,657 07/698,137 01/26/93
5,181,659 07/461,292 01/26/93
5,181,667 07/610,095 01/26/93
5,181,668 07/590,591 01/26/93
5,181,669 07/609,708 01/26/93
5,181,683 07/850,466 01/26/93
5,181,699 07/849,583 01/26/93
5,181,700 07/862,725 01/26/93
5,181,719 07/779,807 01/26/93
5,181,721 07/691,731 01/26/93
5,181,722 07/847,355 01/26/93
5,181,725 07/801,883 01/26/93
5,181,726 07/773,451 01/26/93
5,181,727 07/761,275 01/26/93
5,181,729 07/749,796 01/26/93
5,181,731 07/753,396 01/26/93
5,181,733 07/806,210 01/26/93
5,181,734 07/838,824 01/26/93
5,181,736 07/740,559 01/26/93
5,181,737 07/548,134 01/26/93
5,181,741 07/437,731 01/26/93
5,181,742 07/829,931 01/26/93
5,181,743 07/886,848 01/26/93
5,181,746 07/701,479 01/26/93
5,181,749 07/691,404 01/26/93
5,181,750 07/564,876 01/26/93
5,181,758 07/746,660 01/26/93
5,181,761 07/762,532 01/26/93
5,181,764 07/769,364 01/26/93
5,181,765 07/663,503 01/26/93
5,181,777 07/690,602 01/26/93
5,181,778 07/767,901 01/26/93
5,181,779 07/730,849 01/26/93
5,181,789 07/718,631 01/26/93
5,181,790 07/796,446 01/26/93
5,181,791 07/770,783 01/26/93
5,181,798 07/759,327 01/26/93
5,181,804 07/800,167 01/26/93
5,181,808 07/761,583 01/26/93
5,181,817 07/765,123 01/26/93
5,181,818 07/672,339 01/26/93
5,181,826 07/617,244 01/26/93
5,181,828 07/797,465 01/26/93
5,181,829 07/681,135 01/26/93
5,181,843 07/820,525 01/26/93
5,181,846 07/744,964 01/26/93
5,181,849 07/819,489 01/26/93
5,181,850 07/807,970 01/26/93
5,181,856 07/807,301 01/26/93
5,181,857 07/854,383 01/26/93
5,181,867 07/880,378 01/26/93
5,181,869 07/848,272 01/26/93
5,181,873 07/772,065 01/26/93
5,181,882 07/520,825 01/26/93
5,181,886 07/851,065 01/26/93
5,181,887 07/781,381 01/26/93
5,181,893 07/799,548 01/26/93
5,181,903 07/173,635 01/26/93
5,181,904 07/261,353 01/26/93
5,181,909 07/699,622 01/26/93
5,181,912 07/802,628 01/26/93
5,181,916 07/693,229 01/26/93
5,181,918 07/739,503 01/26/93
5,181,921 07/705,411 01/26/93
5,181,922 07/737,370 01/26/93
5,181,927 07/738,717 01/26/93
5,181,930 07/683,391 01/26/93
5,181,934 07/851,563 01/26/93
5,181,942 07/626,797 01/26/93
5,181,943 07/489,572 01/26/93
5,181,945 07/712,446 01/26/93
5,181,950 07/313,287 01/26/93
5,181,951 07/852,315 01/26/93
5,181,954 07/640,969 01/26/93
5,181,958 07/820,790 01/26/93
5,181,963 07/644,230 01/26/93
5,181,970 07/476,423 01/26/93
5,181,980 07/776,903 01/26/93
5,181,984 07/773,119 01/26/93
5,181,986 07/677,238 01/26/93
5,181,993 07/757,477 01/26/93
5,181,996 07/730,969 01/26/93
5,181,998 07/457,603 01/26/93
5,182,008 07/690,599 01/26/93
5,182,011 07/616,836 01/26/93
5,182,014 07/530,970 01/26/93
5,182,016 07/761,431 01/26/93
5,182,018 07/857,271 01/26/93
5,182,019 07/845,168 01/26/93
5,182,023 07/778,568 01/26/93
5,182,029 07/800,344 01/26/93
5,182,036 07/766,305 01/26/93
5,182,037 06/928,494 01/26/93
5,182,039 07/677,093 01/26/93
5,182,045 07/329,982 01/26/93
5,182,046 07/622,697 01/26/93
5,182,052 06/702,206 01/26/93
5,182,065 07/774,128 01/26/93
5,182,075 07/523,403 01/26/93
5,182,088 07/579,316 01/26/93
5,182,101 07/835,965 01/26/93
5,182,110 07/399,915 01/26/93
5,182,112 07/780,931 01/26/93
5,182,129 07/896,892 01/26/93
5,182,130 07/717,174 01/26/93
5,182,137 07/652,949 01/26/93
5,182,139 07/760,636 01/26/93
5,182,144 07/736,935 01/26/93
5,182,151 07/545,827 01/26/93
5,182,152 07/628,618 01/26/93
5,182,159 07/645,440 01/26/93
5,182,169 07/626,891 01/26/93
5,182,170 07/692,172 01/26/93
5,182,172 07/686,736 01/26/93
5,182,174 07/699,344 01/26/93
5,182,179 07/624,178 01/26/93
5,182,187 07/617,378 01/26/93
5,182,213 07/670,730 01/26/93
5,182,214 07/556,268 01/26/93
5,182,218 07/837,891 01/26/93
5,182,228 07/827,782 01/26/93
5,182,235 07/703,945 01/26/93
5,182,241 07/780,113 01/26/93
5,182,242 07/896,034 01/26/93
5,182,245 07/721,158 01/26/93
5,182,246 07/752,646 01/26/93
5,182,247 07/653,217 01/26/93
5,182,255 07/663,296 01/26/93
5,182,258 07/412,979 01/26/93
5,182,259 07/391,323 01/26/93
5,182,271 07/752,739 01/26/93
5,182,276 07/623,657 01/26/93
5,182,277 07/492,066 01/26/93
5,182,279 07/688,008 01/26/93
5,182,284 07/761,974 01/26/93
5,182,291 07/716,252 01/26/93
5,182,293 07/590,524 01/26/93
5,182,295 07/770,986 01/26/93
5,182,296 07/599,564 01/26/93
5,182,297 07/665,502 01/26/93
5,182,299 07/670,779 01/26/93
5,182,310 07/736,270 01/26/93
5,182,311 07/858,787 01/26/93
5,182,321 07/809,811 01/26/93
5,182,323 07/705,979 01/26/93
5,182,329 07/668,782 01/26/93
5,182,332 07/561,178 01/26/93
5,182,336 07/624,304 01/26/93
5,182,340 07/594,243 01/26/93
5,182,344 07/690,147 01/26/93
5,182,346 07/616,879 01/26/93
5,182,352 07/860,007 01/26/93
5,182,377 07/322,550 01/26/93
5,182,388 07/683,425 01/26/93
5,182,392 07/791,534 01/26/93
5,182,395 07/596,182 01/26/93
5,182,398 07/840,546 01/26/93
5,182,404 07/821,215 01/26/93
5,182,406 07/683,501 01/26/93
5,182,407 07/731,441 01/26/93
5,182,411 07/444,681 01/26/93
5,182,419 06/830,741 01/26/93
5,182,421 07/845,019 01/26/93
5,182,422 07/706,455 01/26/93
5,182,423 07/705,222 01/26/93
5,182,424 07/429,889 01/26/93
5,182,428 07/667,752 01/26/93
5,182,432 07/698,958 01/26/93
5,182,433 07/780,500 01/26/93
5,182,436 07/732,625 01/26/93
5,182,437 07/658,676 01/26/93
5,182,440 07/618,408 01/26/93
5,182,453 07/836,384 01/26/93
5,182,454 07/844,250 01/26/93
5,182,456 07/841,606 01/26/93
5,182,457 07/752,638 01/26/93
5,182,460 07/737,720 01/26/93
5,182,464 07/639,070 01/26/93
5,182,468 07/696,380 01/26/93
5,182,476 07/737,282 01/26/93
5,182,484 07/712,821 01/26/93
5,182,491 07/852,942 01/26/93
5,182,501 07/763,019 01/26/93
5,182,506 07/703,741 01/26/93
5,182,508 07/870,643 01/26/93
5,182,515 07/559,381 01/26/93
5,182,524 07/850,456 01/26/93
5,182,528 07/795,180 01/26/93
5,182,531 07/477,979 01/26/93
5,182,537 07/749,803 01/26/93
5,182,543 07/581,366 01/26/93
5,182,545 07/690,502 01/26/93
5,182,547 07/641,679 01/26/93
5,182,557 07/613,381 01/26/93
5,182,558 07/782,111 01/26/93
5,182,574 07/739,960 01/26/93
5,182,584 07/617,770 01/26/93
5,182,586 07/556,246 01/26/93
5,182,588 07/724,149 01/26/93
5,182,602 07/649,055 01/26/93
5,182,607 07/744,162 01/26/93
5,182,613 07/735,908 01/26/93
5,182,619 07/753,500 01/26/93
5,182,632 07/804,614 01/26/93
5,182,634 07/547,745 01/26/93
5,182,642 07/687,986 01/26/93
5,182,643 07/649,476 01/26/93
5,182,644 07/823,114 01/26/93
5,182,651 07/905,086 01/26/93
5,182,652 07/755,889 01/26/93
5,182,654 07/482,640 01/26/93
5,182,666 07/826,831 01/26/93
5,182,673 07/706,579 01/26/93
5,182,681 07/519,242 01/26/93
5,182,684 07/585,057 01/26/93
5,182,686 07/504,439 01/26/93
5,182,693 07/883,250 01/26/93
5,182,701 07/732,837 01/26/93
5,182,705 07/392,842 01/26/93
5,182,711 07/651,058 01/26/93
5,182,713 07/832,643 01/26/93
5,182,714 07/623,664 01/26/93
5,182,725 07/765,300 01/26/93
5,182,729 07/753,743 01/26/93
5,182,732 07/784,550 01/26/93
5,182,737 07/490,632 01/26/93
5,182,743 07/794,506 01/26/93
5,182,745 07/605,488 01/26/93
5,182,755 07/201,962 01/26/93
5,182,762 07/648,999 01/26/93
5,182,774 07/555,990 01/26/93
5,182,776 07/664,319 01/26/93
5,182,784 07/732,526 01/26/93
5,182,786 07/450,190 01/26/93
5,182,792 07/750,995 01/26/93
5,182,802 07/864,463 01/26/93
PATENTS WHICH EXPIRED ON January 28, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,596,768 08/578,341 01/28/97
5,596,772 08/360,718 01/28/97
5,596,783 08/486,235 01/28/97
5,596,786 08/488,903 01/28/97
5,596,787 08/512,661 01/28/97
5,596,789 08/352,037 01/28/97
5,596,795 08/428,576 01/28/97
5,596,807 08/494,611 01/28/97
5,596,810 08/207,824 01/28/97
5,596,816 08/540,034 01/28/97
5,596,818 08/324,351 01/28/97
5,596,819 08/469,793 01/28/97
5,596,820 08/427,136 01/28/97
5,596,824 08/402,848 01/28/97
5,596,828 08/558,210 01/28/97
5,596,833 08/358,234 01/28/97
5,596,841 08/429,335 01/28/97
5,596,866 08/514,880 01/28/97
5,596,879 08/317,862 01/28/97
5,596,891 08/525,183 01/28/97
5,596,902 08/339,941 01/28/97
5,596,906 08/556,758 01/28/97
5,596,908 08/519,775 01/28/97
5,596,918 08/230,600 01/28/97
5,596,921 08/640,316 01/28/97
5,596,926 07/949,147 01/28/97
5,596,927 08/250,403 01/28/97
5,596,928 08/550,429 01/28/97
5,596,935 08/552,720 01/28/97
5,596,936 08/514,414 01/28/97
5,596,942 08/285,684 01/28/97
5,596,943 08/521,380 01/28/97
5,596,953 08/580,849 01/28/97
5,596,979 08/573,980 01/28/97
5,596,986 08/018,349 01/28/97
5,596,997 08/491,741 01/28/97
5,597,003 08/520,094 01/28/97
5,597,009 08/403,650 01/28/97
5,597,012 08/313,145 01/28/97
5,597,013 08/541,951 01/28/97
5,597,022 08/530,013 01/28/97
5,597,025 08/388,552 01/28/97
5,597,026 08/328,687 01/28/97
5,597,027 08/551,483 01/28/97
5,597,029 08/591,504 01/28/97
5,597,030 08/403,370 01/28/97
5,597,035 08/515,726 01/28/97
5,597,039 08/549,042 01/28/97
5,597,041 08/586,227 01/28/97
5,597,044 08/610,746 01/28/97
5,597,048 08/577,842 01/28/97
5,597,050 08/208,216 01/28/97
5,597,051 08/221,943 01/28/97
5,597,053 08/572,426 01/28/97
5,597,056 08/366,733 01/28/97
5,597,064 07/623,647 01/28/97
5,597,070 08/562,759 01/28/97
5,597,072 08/169,307 01/28/97
5,597,074 08/365,553 01/28/97
5,597,079 08/518,697 01/28/97
5,597,089 08/300,534 01/28/97
5,597,090 08/344,942 01/28/97
5,597,094 08/501,430 01/28/97
5,597,099 08/556,381 01/28/97
5,597,112 08/322,925 01/28/97
5,597,116 08/340,217 01/28/97
5,597,144 08/353,219 01/28/97
5,597,145 08/423,889 01/28/97
5,597,147 08/399,903 01/28/97
5,597,151 08/276,035 01/28/97
5,597,158 08/574,656 01/28/97
5,597,160 08/495,845 01/28/97
5,597,163 08/338,622 01/28/97
5,597,164 08/586,204 01/28/97
5,597,170 08/429,873 01/28/97
5,597,176 08/500,440 01/28/97
5,597,177 08/424,475 01/28/97
5,597,179 08/200,392 01/28/97
5,597,183 08/349,888 01/28/97
5,597,187 08/409,466 01/28/97
5,597,189 08/233,262 01/28/97
5,597,191 08/202,573 01/28/97
5,597,193 08/251,343 01/28/97
5,597,195 08/458,739 01/28/97
5,597,196 08/524,913 01/28/97
5,597,197 08/297,133 01/28/97
5,597,205 08/202,818 01/28/97
5,597,214 08/353,378 01/28/97
5,597,229 08/417,923 01/28/97
5,597,236 08/410,317 01/28/97
5,597,237 08/450,659 01/28/97
5,597,240 08/610,375 01/28/97
5,597,255 08/476,600 01/28/97
5,597,256 08/177,427 01/28/97
5,597,261 08/446,622 01/28/97
5,597,262 08/411,484 01/28/97
5,597,266 08/401,797 01/28/97
5,597,281 08/318,998 01/28/97
5,597,287 08/515,878 01/28/97
5,597,303 08/390,079 01/28/97
5,597,310 08/441,486 01/28/97
5,597,318 08/275,959 01/28/97
5,597,335 08/544,460 01/28/97
5,597,337 08/394,109 01/28/97
5,597,339 08/550,173 01/28/97
5,597,340 08/300,820 01/28/97
5,597,349 08/322,331 01/28/97
5,597,358 08/253,130 01/28/97
5,597,360 08/385,879 01/28/97
5,597,362 08/651,678 01/28/97
5,597,363 08/233,053 01/28/97
5,597,364 08/592,841 01/28/97
5,597,376 08/422,270 01/28/97
5,597,379 08/342,143 01/28/97
5,597,385 08/343,336 01/28/97
5,597,386 08/284,524 01/28/97
5,597,399 08/507,877 01/28/97
5,597,406 08/330,353 01/28/97
5,597,407 08/458,307 01/28/97
5,597,410 08/306,471 01/28/97
5,597,414 08/223,253 01/28/97
5,597,417 08/318,738 01/28/97
5,597,423 08/575,299 01/28/97
5,597,424 08/502,238 01/28/97
5,597,426 08/067,369 01/28/97
5,597,433 08/250,525 01/28/97
5,597,440 07/989,600 01/28/97
5,597,445 08/158,962 01/28/97
5,597,448 08/442,069 01/28/97
5,597,451 08/490,872 01/28/97
5,597,452 08/408,918 01/28/97
5,597,453 07/962,256 01/28/97
5,597,455 08/586,179 01/28/97
5,597,464 08/310,956 01/28/97
5,597,466 08/279,888 01/28/97
5,597,475 08/508,642 01/28/97
5,597,482 08/428,372 01/28/97
5,597,485 08/365,068 01/28/97
5,597,492 08/411,643 01/28/97
5,597,497 08/359,909 01/28/97
5,597,500 08/356,328 01/28/97
5,597,504 08/379,570 01/28/97
5,597,510 08/248,178 01/28/97
5,597,521 08/488,504 01/28/97
5,597,522 08/350,636 01/28/97
5,597,524 08/410,778 01/28/97
5,597,528 08/522,198 01/28/97
5,597,529 08/335,488 01/28/97
5,597,536 08/608,529 01/28/97
5,597,545 08/338,935 01/28/97
5,597,548 08/497,779 01/28/97
5,597,556 08/425,926 01/28/97
5,597,565 08/411,280 01/28/97
5,597,569 08/324,301 01/28/97
5,597,575 08/254,568 01/28/97
5,597,576 08/274,447 01/28/97
5,597,578 08/234,509 01/28/97
5,597,580 08/237,219 01/28/97
5,597,581 08/397,219 01/28/97
5,597,583 08/318,739 01/28/97
5,597,591 08/378,458 01/28/97
5,597,596 08/565,744 01/28/97
5,597,611 07/591,147 01/28/97
5,597,619 08/419,758 01/28/97
5,597,628 08/293,199 01/28/97
5,597,637 08/301,080 01/28/97
5,597,640 08/528,286 01/28/97
5,597,653 08/449,339 01/28/97
5,597,667 08/316,498 01/28/97
5,597,675 08/634,539 01/28/97
5,597,678 08/499,808 01/28/97
5,597,700 08/234,851 01/28/97
5,597,721 08/256,539 01/28/97
5,597,727 08/245,688 01/28/97
5,597,730 08/477,410 01/28/97
5,597,732 08/421,988 01/28/97
5,597,782 08/370,302 01/28/97
5,597,787 08/151,952 01/28/97
5,597,788 08/492,167 01/28/97
5,597,790 08/337,653 01/28/97
5,597,806 08/437,718 01/28/97
5,597,816 08/468,158 01/28/97
5,597,819 08/387,394 01/28/97
5,597,822 08/443,487 01/28/97
5,597,824 07/904,407 01/28/97
5,597,825 08/257,759 01/28/97
5,597,833 08/102,453 01/28/97
5,597,836 08/385,029 01/28/97
5,597,841 08/445,118 01/28/97
5,597,844 08/446,708 01/28/97
5,597,846 08/311,518 01/28/97
5,597,848 08/397,068 01/28/97
5,597,855 08/448,879 01/28/97
5,597,860 08/505,708 01/28/97
5,597,866 08/497,486 01/28/97
5,597,869 08/463,338 01/28/97
5,597,870 08/558,405 01/28/97
5,597,884 08/380,634 01/28/97
5,597,899 08/217,529 01/28/97
5,597,905 08/574,427 01/28/97
5,597,915 08/295,918 01/28/97
5,597,916 08/604,658 01/28/97
5,597,917 08/380,517 01/28/97
5,597,918 08/460,758 01/28/97
5,597,921 08/532,566 01/28/97
5,597,925 08/476,681 01/28/97
5,597,938 08/505,165 01/28/97
5,597,941 08/366,017 01/28/97
5,597,947 08/578,004 01/28/97
5,597,948 08/327,592 01/28/97
5,597,953 08/454,241 01/28/97
5,597,958 08/585,421 01/28/97
5,597,964 08/485,179 01/28/97
5,597,976 08/344,876 01/28/97
5,597,985 08/450,644 01/28/97
5,597,994 08/455,594 01/28/97
5,598,013 08/353,319 01/28/97
5,598,018 08/470,494 01/28/97
5,598,039 08/031,322 01/28/97
5,598,053 08/409,463 01/28/97
5,598,054 08/374,753 01/28/97
5,598,068 08/401,519 01/28/97
5,598,076 08/244,756 01/28/97
5,598,080 08/017,211 01/28/97
5,598,098 08/289,302 01/28/97
5,598,103 08/358,723 01/28/97
5,598,124 08/509,412 01/28/97
5,598,127 08/454,369 01/28/97
5,598,137 08/295,762 01/28/97
5,598,143 08/589,789 01/28/97
5,598,152 08/368,268 01/28/97
5,598,159 08/378,256 01/28/97
5,598,171 08/459,752 01/28/97
5,598,185 08/258,059 01/28/97
5,598,199 08/244,874 01/28/97
5,598,212 08/506,783 01/28/97
5,598,216 08/434,808 01/28/97
5,598,225 08/468,133 01/28/97
5,598,230 08/552,618 01/28/97
5,598,233 08/292,016 01/28/97
5,598,253 08/523,790 01/28/97
5,598,262 08/325,172 01/28/97
5,598,268 08/374,574 01/28/97
5,598,269 08/241,969 01/28/97
5,598,270 08/190,086 01/28/97
5,598,279 08/334,022 01/28/97
5,598,293 08/526,322 01/28/97
5,598,337 08/495,872 01/28/97
5,598,355 08/423,718 01/28/97
5,598,380 08/373,076 01/28/97
5,598,383 08/342,454 01/28/97
5,598,408 08/182,250 01/28/97
5,598,414 08/072,664 01/28/97
5,598,422 08/531,572 01/28/97
5,598,423 08/367,833 01/28/97
5,598,436 08/268,079 01/28/97
5,598,461 08/250,867 01/28/97
5,598,465 08/636,893 01/28/97
5,598,469 08/559,250 01/28/97
5,598,471 08/339,464 01/28/97
5,598,480 08/429,585 01/28/97
5,598,484 08/385,204 01/28/97
5,598,502 08/285,449 01/28/97
5,598,531 07/969,299 01/28/97
5,598,535 08/283,889 01/28/97
5,598,544 07/861,786 01/28/97
5,598,564 08/360,213 01/28/97
5,598,577 08/569,309 01/28/97