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 23, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,831,670 07/029,241 05/23/89
4,831,672 06/908,504 05/23/89
4,831,673 07/174,147 05/23/89
4,831,678 07/177,464 05/23/89
4,831,691 07/106,521 05/23/89
4,831,693 07/153,693 05/23/89
4,831,695 07/080,262 05/23/89
4,831,700 07/131,579 05/23/89
4,831,708 07/218,476 05/23/89
4,831,712 07/177,770 05/23/89
4,831,714 07/106,722 05/23/89
4,831,731 07/178,920 05/23/89
4,831,741 07/188,691 05/23/89
4,831,746 07/120,052 05/23/89
4,831,751 07/123,708 05/23/89
4,831,753 07/242,591 05/23/89
4,831,755 07/088,386 05/23/89
4,831,760 06/822,341 05/23/89
4,831,778 07/095,612 05/23/89
4,831,783 07/144,245 05/23/89
4,831,785 07/089,370 05/23/89
4,831,786 07/201,149 05/23/89
4,831,789 07/171,742 05/23/89
4,831,796 07/116,588 05/23/89
4,831,803 07/111,041 05/23/89
4,831,805 07/127,017 05/23/89
4,831,811 07/208,065 05/23/89
4,831,812 07/119,901 05/23/89
4,831,815 07/132,930 05/23/89
4,831,824 07/129,960 05/23/89
4,831,833 07/072,330 05/23/89
4,831,837 07/141,191 05/23/89
4,831,845 07/234,410 05/23/89
4,831,847 07/167,520 05/23/89
4,831,848 07/101,356 05/23/89
4,831,849 07/114,306 05/23/89
4,831,856 07/072,570 05/23/89
4,831,858 07/130,896 05/23/89
4,831,860 07/197,981 05/23/89
4,831,867 07/036,672 05/23/89
4,831,871 07/079,364 05/23/89
4,831,873 06/848,451 05/23/89
4,831,882 07/214,017 05/23/89
4,831,893 07/081,316 05/23/89
4,831,909 07/113,814 05/23/89
4,831,911 06/314,978 05/23/89
4,831,920 06/456,906 05/23/89
4,831,928 07/120,585 05/23/89
4,831,940 07/185,544 05/23/89
4,831,941 07/076,041 05/23/89
4,831,942 07/086,317 05/23/89
4,831,945 07/125,501 05/23/89
4,831,949 07/072,772 05/23/89
4,831,963 07/009,685 05/23/89
4,831,967 07/140,027 05/23/89
4,831,968 07/096,917 05/23/89
4,831,969 07/068,887 05/23/89
4,831,970 07/158,768 05/23/89
4,831,976 07/230,689 05/23/89
4,831,984 07/244,130 05/23/89
4,831,989 06/922,210 05/23/89
4,831,998 07/076,710 05/23/89
4,832,007 07/180,371 05/23/89
4,832,008 07/153,871 05/23/89
4,832,010 07/122,553 05/23/89
4,832,012 07/071,202 05/23/89
4,832,013 07/148,910 05/23/89
4,832,014 07/106,811 05/23/89
4,832,035 07/158,948 05/23/89
4,832,037 07/169,116 05/23/89
4,832,038 07/009,099 05/23/89
4,832,044 07/215,797 05/23/89
4,832,053 07/178,977 05/23/89
4,832,058 06/401,303 05/23/89
4,832,061 06/485,742 05/23/89
4,832,072 07/096,487 05/23/89
4,832,083 07/256,127 05/23/89
4,832,084 07/197,486 05/23/89
4,832,109 07/100,384 05/23/89
4,832,135 07/162,170 05/23/89
4,832,143 07/149,417 05/23/89
4,832,145 07/205,975 05/23/89
4,832,151 07/230,292 05/23/89
4,832,154 07/151,897 05/23/89
4,832,158 07/129,331 05/23/89
4,832,161 07/102,461 05/23/89
4,832,165 07/180,867 05/23/89
4,832,182 07/135,498 05/23/89
4,832,184 07/028,554 05/23/89
4,832,185 07/160,448 05/23/89
4,832,186 07/182,634 05/23/89
4,832,190 07/232,198 05/23/89
4,832,191 07/154,864 05/23/89
4,832,196 07/158,403 05/23/89
4,832,205 06/858,737 05/23/89
4,832,207 06/709,528 05/23/89
4,832,208 07/125,128 05/23/89
4,832,215 07/128,039 05/23/89
4,832,216 07/164,578 05/23/89
4,832,219 07/207,467 05/23/89
4,832,227 07/235,489 05/23/89
4,832,230 07/133,495 05/23/89
4,832,233 07/114,858 05/23/89
4,832,236 07/210,144 05/23/89
4,832,250 07/054,959 05/23/89
4,832,252 07/133,527 05/23/89
4,832,255 07/223,818 05/23/89
4,832,264 07/087,369 05/23/89
4,832,268 07/228,746 05/23/89
4,832,284 07/113,166 05/23/89
4,832,288 07/076,631 05/23/89
4,832,291 07/074,263 05/23/89
4,832,315 07/166,951 05/23/89
4,832,319 07/070,189 05/23/89
4,832,320 07/270,470 05/23/89
4,832,342 07/230,705 05/23/89
4,832,343 07/049,654 05/23/89
4,832,353 07/211,558 05/23/89
4,832,366 07/161,959 05/23/89
4,832,367 07/107,967 05/23/89
4,832,369 07/114,492 05/23/89
4,832,378 07/177,162 05/23/89
4,832,382 07/148,733 05/23/89
4,832,386 06/915,568 05/23/89
4,832,389 07/224,348 05/23/89
4,832,390 07/157,585 05/23/89
4,832,395 07/159,184 05/23/89
4,832,397 07/116,057 05/23/89
4,832,401 07/176,553 05/23/89
4,832,404 07/044,249 05/23/89
4,832,405 07/157,466 05/23/89
4,832,413 07/027,483 05/23/89
4,832,414 07/023,350 05/23/89
4,832,419 07/240,438 05/23/89
4,832,420 07/148,350 05/23/89
4,832,424 06/792,437 05/23/89
4,832,427 07/152,763 05/23/89
4,832,430 07/008,371 05/23/89
4,832,439 07/102,709 05/23/89
4,832,445 06/864,193 05/23/89
4,832,460 07/067,449 05/23/89
4,832,462 07/062,159 05/23/89
4,832,472 07/074,659 05/23/89
4,832,477 07/094,546 05/23/89
4,832,478 07/117,768 05/23/89
4,832,483 07/092,424 05/23/89
4,832,494 07/057,028 05/23/89
4,832,503 07/115,319 05/23/89
4,832,507 07/195,920 05/23/89
4,832,542 07/129,239 05/23/89
4,832,548 07/020,428 05/23/89
4,832,549 07/076,571 05/23/89
4,832,567 07/214,992 05/23/89
4,832,579 07/117,886 05/23/89
4,832,580 07/108,544 05/23/89
4,832,596 07/182,135 05/23/89
4,832,601 07/128,751 05/23/89
4,832,606 07/210,989 05/23/89
4,832,608 07/053,313 05/23/89
4,832,611 07/108,784 05/23/89
4,832,614 07/136,784 05/23/89
4,832,615 06/882,751 05/23/89
4,832,616 06/395,481 05/23/89
4,832,622 07/006,440 05/23/89
4,832,625 07/234,063 05/23/89
4,832,640 07/215,063 05/23/89
4,832,649 07/118,948 05/23/89
4,832,653 06/882,478 05/23/89
4,832,660 07/217,480 05/23/89
4,832,661 07/266,298 05/23/89
4,832,665 07/136,312 05/23/89
4,832,673 07/091,767 05/23/89
4,832,682 06/735,311 05/23/89
4,832,684 07/060,612 05/23/89
4,832,687 07/140,120 05/23/89
4,832,698 07/035,864 05/23/89
4,832,701 07/133,327 05/23/89
4,832,703 07/112,383 05/23/89
4,832,713 07/042,554 05/23/89
4,832,720 07/102,248 05/23/89
4,832,726 07/148,657 05/23/89
4,832,734 07/190,714 05/23/89
4,832,735 07/183,328 05/23/89
4,832,736 07/130,487 05/23/89
4,832,739 07/208,324 05/23/89
4,832,749 07/135,203 05/23/89
4,832,750 07/127,153 05/23/89
4,832,753 07/053,202 05/23/89
4,832,754 07/008,744 05/23/89
4,832,769 07/052,084 05/23/89
4,832,790 07/017,916 05/23/89
4,832,792 07/115,275 05/23/89
4,832,793 07/161,727 05/23/89
4,832,799 07/079,532 05/23/89
4,832,800 07/059,217 05/23/89
4,832,801 07/224,262 05/23/89
4,832,805 06/442,211 05/23/89
4,832,826 07/084,779 05/23/89
4,832,827 07/084,725 05/23/89
4,832,828 07/084,721 05/23/89
4,832,836 07/178,863 05/23/89
4,832,838 06/888,368 05/23/89
4,832,849 07/207,415 05/23/89
4,832,859 07/052,260 05/23/89
4,832,867 07/255,864 05/23/89
4,832,870 07/209,119 05/23/89
4,832,874 07/069,990 05/23/89
4,832,881 07/209,168 05/23/89
4,832,887 07/046,182 05/23/89
4,832,889 07/140,444 05/23/89
4,832,891 07/125,295 05/23/89
4,832,892 07/003,102 05/23/89
4,832,893 07/135,971 05/23/89
4,832,896 07/071,735 05/23/89
4,832,897 06/865,393 05/23/89
4,832,912 07/142,284 05/23/89
4,832,929 07/006,688 05/23/89
4,832,931 07/241,179 05/23/89
4,832,937 07/250,454 05/23/89
4,832,950 07/193,186 05/23/89
4,832,965 07/006,498 05/23/89
4,832,977 07/116,636 05/23/89
4,832,981 07/127,602 05/23/89
4,832,983 07/021,942 05/23/89
4,832,987 07/076,358 05/23/89
4,832,990 07/127,795 05/23/89
4,832,994 07/092,045 05/23/89
4,833,000 07/101,910 05/23/89
4,833,001 07/105,612 05/23/89
4,833,006 07/154,579 05/23/89
4,833,013 07/189,451 05/23/89
4,833,015 07/170,347 05/23/89
4,833,016 07/184,255 05/23/89
4,833,022 07/087,195 05/23/89
4,833,045 07/130,918 05/23/89
4,833,047 07/112,304 05/23/89
4,833,055 07/058,245 05/23/89
4,833,059 07/026,265 05/23/89
4,833,069 07/005,097 05/23/89
4,833,083 07/054,262 05/23/89
4,833,090 07/165,454 05/23/89
4,833,091 07/012,105 05/23/89
4,833,093 07/111,152 05/23/89
4,833,094 07/238,002 05/23/89
4,833,100 06/939,101 05/23/89
4,833,107 07/253,916 05/23/89
4,833,109 07/144,241 05/23/89
4,833,110 07/052,806 05/23/89
4,833,111 07/143,987 05/23/89
4,833,112 07/207,300 05/23/89
4,833,123 07/252,995 05/23/89
4,833,131 07/012,963 05/23/89
4,833,147 07/023,056 05/23/89
4,833,156 07/160,600 05/23/89
4,833,159 07/035,358 05/23/89
4,833,174 07/272,584 05/23/89
4,833,175 07/222,471 05/23/89
4,833,176 07/205,988 05/23/89
4,833,177 07/128,316 05/23/89
4,833,185 07/169,942 05/23/89
4,833,189 07/040,477 05/23/89
4,833,194 07/120,064 05/23/89
4,833,196 07/233,554 05/23/89
4,833,198 06/757,237 05/23/89
4,833,201 07/143,429 05/23/89
4,833,202 07/046,819 05/23/89
4,833,203 07/212,707 05/23/89
4,833,208 07/040,476 05/23/89
4,833,211 07/019,881 05/23/89
4,833,214 06/945,552 05/23/89
4,833,218 07/020,216 05/23/89
4,833,229 07/167,106 05/23/89
4,833,231 07/092,916 05/23/89
4,833,241 07/068,629 05/23/89
4,833,244 07/108,858 05/23/89
4,833,245 07/219,412 05/23/89
4,833,249 07/022,197 05/23/89
4,833,253 07/129,276 05/23/89
4,833,256 06/916,686 05/23/89
4,833,270 07/136,052 05/23/89
4,833,275 07/162,511 05/23/89
4,833,279 07/112,245 05/23/89
4,833,286 07/030,681 05/23/89
4,833,287 07/171,443 05/23/89
4,833,292 07/239,218 05/23/89
4,833,296 07/138,880 05/23/89
4,833,303 07/071,771 05/23/89
4,833,316 06/903,131 05/23/89
4,833,328 07/065,311 05/23/89
4,833,330 07/116,039 05/23/89
4,833,350 07/187,774 05/23/89
4,833,356 07/138,203 05/23/89
4,833,373 07/036,771 05/23/89
4,833,376 07/116,762 05/23/89
4,833,398 07/257,193 05/23/89
4,833,429 07/194,974 05/23/89
4,833,439 07/132,947 05/23/89
4,833,462 06/639,760 05/23/89
4,833,463 06/911,930 05/23/89
4,833,479 07/171,078 05/23/89
4,833,481 07/075,904 05/23/89
4,833,482 07/160,449 05/23/89
4,833,491 07/206,778 05/23/89
4,833,496 07/188,867 05/23/89
4,833,505 07/147,352 05/23/89
4,833,506 07/054,314 05/23/89
4,833,510 07/097,736 05/23/89
4,833,530 07/112,033 05/23/89
4,833,549 07/138,912 05/23/89
4,833,550 07/066,542 05/23/89
4,833,564 07/100,691 05/23/89
4,833,565 07/016,412 05/23/89
4,833,579 07/165,722 05/23/89
4,833,583 07/146,866 05/23/89
4,833,587 07/171,383 05/23/89
4,833,592 07/093,764 05/23/89
4,833,593 06/576,923 05/23/89
4,833,596 07/172,042 05/23/89
4,833,602 07/067,580 05/23/89
4,833,604 06/818,432 05/23/89
4,833,607 07/094,288 05/23/89
4,833,619 06/945,946 05/23/89
4,833,633 06/664,893 05/23/89
4,833,634 06/847,222 05/23/89
4,833,635 07/022,309 05/23/89
4,833,645 06/929,367 05/23/89
4,833,650 07/034,094 05/23/89
4,833,659 06/686,804 05/23/89
4,833,670 06/896,771 05/23/89
4,833,676 07/079,372 05/23/89
4,833,679 07/091,482 05/23/89
4,833,703 07/081,666 05/23/89
4,833,710 07/127,593 05/23/89
4,833,718 07/013,966 05/23/89
PATENTS WHICH EXPIRED ON May 18, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,210,877 07/771,240 05/18/93
5,210,878 07/851,484 05/18/93
5,210,879 07/696,142 05/18/93
5,210,881 07/800,274 05/18/93
5,210,885 07/896,609 05/18/93
5,210,896 07/967,684 05/18/93
5,210,897 07/833,359 05/18/93
5,210,898 07/743,722 05/18/93
5,210,899 07/765,304 05/18/93
5,210,901 07/818,480 05/18/93
5,210,904 07/739,818 05/18/93
5,210,908 07/865,486 05/18/93
5,210,910 07/734,472 05/18/93
5,210,912 07/895,653 05/18/93
5,210,913 07/791,585 05/18/93
5,210,914 07/876,960 05/18/93
5,210,919 07/874,147 05/18/93
5,210,923 07/793,078 05/18/93
5,210,925 07/841,972 05/18/93
5,210,927 07/716,819 05/18/93
5,210,929 07/671,199 05/18/93
5,210,931 07/783,203 05/18/93
5,210,935 07/811,525 05/18/93
5,210,936 07/817,214 05/18/93
5,210,951 07/934,279 05/18/93
5,210,952 07/783,553 05/18/93
5,210,954 07/768,069 05/18/93
5,210,959 07/746,755 05/18/93
5,210,965 07/469,036 05/18/93
5,210,968 07/807,761 05/18/93
5,210,971 07/824,545 05/18/93
5,210,980 07/610,252 05/18/93
5,210,982 07/644,305 05/18/93
5,210,983 07/612,965 05/18/93
5,210,991 07/707,464 05/18/93
5,211,008 07/798,807 05/18/93
5,211,014 07/817,452 05/18/93
5,211,019 07/671,760 05/18/93
5,211,029 07/706,057 05/18/93
5,211,033 07/910,511 05/18/93
5,211,037 07/566,739 05/18/93
5,211,045 07/773,643 05/18/93
5,211,051 07/735,628 05/18/93
5,211,061 07/730,643 05/18/93
5,211,063 07/623,015 05/18/93
5,211,067 07/847,929 05/18/93
5,211,071 07/855,181 05/18/93
5,211,075 07/873,140 05/18/93
5,211,076 07/724,028 05/18/93
5,211,084 07/879,944 05/18/93
5,211,099 07/853,826 05/18/93
5,211,105 07/977,105 05/18/93
5,211,109 07/767,119 05/18/93
5,211,112 07/888,184 05/18/93
5,211,117 07/757,645 05/18/93
5,211,124 07/847,919 05/18/93
5,211,126 07/884,672 05/18/93
5,211,131 07/987,691 05/18/93
5,211,133 07/826,814 05/18/93
5,211,134 07/842,066 05/18/93
5,211,136 07/868,662 05/18/93
5,211,142 07/815,378 05/18/93
5,211,148 07/953,947 05/18/93
5,211,150 07/760,282 05/18/93
5,211,152 07/823,144 05/18/93
5,211,155 07/838,930 05/18/93
5,211,157 07/711,893 05/18/93
5,211,163 07/579,841 05/18/93
5,211,168 07/812,524 05/18/93
5,211,179 07/553,500 05/18/93
5,211,180 07/601,372 05/18/93
5,211,188 07/816,657 05/18/93
5,211,192 07/792,242 05/18/93
5,211,195 07/897,799 05/18/93
5,211,200 07/887,836 05/18/93
5,211,204 07/715,424 05/18/93
5,211,213 07/733,136 05/18/93
5,211,221 07/906,565 05/18/93
5,211,223 07/844,452 05/18/93
5,211,225 07/749,262 05/18/93
5,211,229 07/860,541 05/18/93
5,211,231 07/810,586 05/18/93
5,211,232 07/810,649 05/18/93
5,211,242 07/779,678 05/18/93
5,211,252 07/837,848 05/18/93
5,211,253 07/778,273 05/18/93
5,211,254 07/770,556 05/18/93
5,211,260 07/888,823 05/18/93
5,211,263 07/822,787 05/18/93
5,211,265 07/850,340 05/18/93
5,211,270 07/783,034 05/18/93
5,211,273 07/906,752 05/18/93
5,211,280 07/850,529 05/18/93
5,211,284 07/729,586 05/18/93
5,211,290 07/927,350 05/18/93
5,211,292 07/821,499 05/18/93
5,211,294 07/844,534 05/18/93
5,211,305 07/919,894 05/18/93
5,211,306 07/839,551 05/18/93
5,211,315 07/915,414 05/18/93
5,211,320 07/868,297 05/18/93
5,211,321 07/797,378 05/18/93
5,211,325 07/896,672 05/18/93
5,211,333 07/879,041 05/18/93
5,211,334 07/839,026 05/18/93
5,211,340 07/925,271 05/18/93
5,211,341 07/684,619 05/18/93
5,211,374 07/767,628 05/18/93
5,211,375 07/888,512 05/18/93
5,211,378 07/712,682 05/18/93
5,211,381 07/797,313 05/18/93
5,211,385 07/797,486 05/18/93
5,211,398 07/530,439 05/18/93
5,211,400 07/882,944 05/18/93
5,211,407 07/876,602 05/18/93
5,211,409 07/830,609 05/18/93
5,211,417 07/721,834 05/18/93
5,211,426 07/587,691 05/18/93
5,211,431 07/860,185 05/18/93
5,211,436 07/517,490 05/18/93
5,211,437 07/910,195 05/18/93
5,211,438 07/956,464 05/18/93
5,211,440 07/806,314 05/18/93
5,211,441 07/926,943 05/18/93
5,211,442 07/797,941 05/18/93
5,211,447 07/944,016 05/18/93
5,211,458 07/922,503 05/18/93
5,211,460 07/737,241 05/18/93
5,211,464 07/858,692 05/18/93
5,211,468 07/940,524 05/18/93
5,211,470 07/779,417 05/18/93
5,211,485 07/917,997 05/18/93
5,211,487 07/881,472 05/18/93
5,211,488 07/495,422 05/18/93
5,211,493 07/894,687 05/18/93
5,211,494 07/710,014 05/18/93
5,211,495 07/962,706 05/18/93
5,211,502 07/671,903 05/18/93
5,211,505 07/635,738 05/18/93
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5,211,508 07/839,404 05/18/93
5,211,509 07/740,098 05/18/93
5,211,510 07/803,884 05/18/93
5,211,523 07/648,163 05/18/93
5,211,526 07/843,182 05/18/93
5,211,527 07/752,352 05/18/93
5,211,528 07/821,133 05/18/93
5,211,531 07/813,607 05/18/93
5,211,533 07/785,377 05/18/93
5,211,545 07/861,611 05/18/93
5,211,549 07/833,190 05/18/93
5,211,557 07/842,008 05/18/93
5,211,569 07/800,142 05/18/93
5,211,572 07/902,612 05/18/93
5,211,578 07/884,791 05/18/93
5,211,579 07/884,492 05/18/93
5,211,584 07/899,349 05/18/93
5,211,585 07/843,696 05/18/93
5,211,598 07/641,262 05/18/93
5,211,605 07/799,271 05/18/93
5,211,607 07/821,993 05/18/93
5,211,611 07/585,849 05/18/93
5,211,614 07/824,825 05/18/93
5,211,616 07/818,255 05/18/93
5,211,620 07/786,573 05/18/93
5,211,622 07/703,383 05/18/93
5,211,627 07/654,355 05/18/93
5,211,640 07/823,984 05/18/93
5,211,642 07/783,330 05/18/93
5,211,645 07/656,053 05/18/93
5,211,648 07/582,915 05/18/93
5,211,649 07/279,702 05/18/93
5,211,654 07/713,398 05/18/93
5,211,661 07/570,997 05/18/93
5,211,663 07/719,805 05/18/93
5,211,664 07/820,758 05/18/93
5,211,675 07/822,754 05/18/93
5,211,679 07/715,112 05/18/93
5,211,684 07/296,539 05/18/93
5,211,688 07/856,136 05/18/93
5,211,691 07/618,294 05/18/93
5,211,692 07/573,857 05/18/93
5,211,700 07/880,636 05/18/93
5,211,702 07/625,922 05/18/93
5,211,706 07/895,974 05/18/93
5,211,710 07/753,763 05/18/93
5,211,716 07/841,167 05/18/93
5,211,720 07/208,914 05/18/93
5,211,721 07/730,134 05/18/93
5,211,729 07/752,392 05/18/93
5,211,733 07/791,146 05/18/93
5,211,749 07/810,629 05/18/93
5,211,752 07/708,998 05/18/93
5,211,753 07/898,564 05/18/93
5,211,755 07/746,715 05/18/93
5,211,756 07/743,102 05/18/93
5,211,757 07/695,553 05/18/93
5,211,758 07/775,040 05/18/93
5,211,760 07/868,440 05/18/93
5,211,779 07/598,304 05/18/93
5,211,784 07/895,284 05/18/93
5,211,802 07/678,192 05/18/93
5,211,803 07/859,649 05/18/93
5,211,807 07/724,690 05/18/93
5,211,809 07/703,547 05/18/93
5,211,810 07/565,300 05/18/93
5,211,825 07/764,161 05/18/93
5,211,839 07/385,038 05/18/93
5,211,847 07/915,540 05/18/93
5,211,857 07/606,163 05/18/93
5,211,860 07/825,683 05/18/93
5,211,873 07/918,207 05/18/93
5,211,876 07/546,290 05/18/93
5,211,879 07/604,827 05/18/93
5,211,882 07/588,830 05/18/93
5,211,883 07/767,467 05/18/93
5,211,886 07/739,294 05/18/93
5,211,889 07/738,828 05/18/93
5,211,893 07/508,441 05/18/93
5,211,894 07/591,411 05/18/93
5,211,898 07/706,568 05/18/93
5,211,905 07/872,719 05/18/93
5,211,907 07/788,186 05/18/93
5,211,911 07/848,026 05/18/93
5,211,919 07/826,399 05/18/93
5,211,925 07/834,131 05/18/93
5,211,927 07/798,591 05/18/93
5,211,930 07/693,782 05/18/93
5,211,935 07/771,716 05/18/93
5,211,936 07/559,856 05/18/93
5,211,937 07/683,458 05/18/93
5,211,962 07/081,339 05/18/93
5,211,963 07/879,632 05/18/93
5,211,965 07/839,894 05/18/93
5,211,966 07/490,555 05/18/93
5,211,975 07/703,280 05/18/93
5,211,978 07/802,635 05/18/93
5,211,993 07/625,204 05/18/93
5,211,994 07/892,363 05/18/93
5,212,004 07/730,692 05/18/93
5,212,015 07/905,267 05/18/93
5,212,016 07/767,129 05/18/93
5,212,022 07/585,508 05/18/93
5,212,028 07/657,785 05/18/93
5,212,030 07/439,704 05/18/93
5,212,033 07/798,742 05/18/93
5,212,035 07/734,358 05/18/93
5,212,041 07/679,361 05/18/93
5,212,044 07/793,260 05/18/93
5,212,045 07/697,439 05/18/93
5,212,059 07/571,563 05/18/93
5,212,062 07/755,823 05/18/93
5,212,068 07/602,190 05/18/93
5,212,076 07/760,352 05/18/93
5,212,080 07/508,379 05/18/93
5,212,082 07/669,446 05/18/93
5,212,084 07/200,843 05/18/93
5,212,110 07/887,958 05/18/93
5,212,116 07/845,502 05/18/93
5,212,118 07/743,546 05/18/93
5,212,128 07/799,810 05/18/93
5,212,131 07/658,248 05/18/93
5,212,133 07/657,756 05/18/93
5,212,145 07/917,267 05/18/93
5,212,159 07/947,961 05/18/93
5,212,164 07/501,204 05/18/93
5,212,171 07/727,051 05/18/93
5,212,173 07/809,448 05/18/93
5,212,178 07/522,751 05/18/93
5,212,192 07/810,221 05/18/93
5,212,193 07/672,305 05/18/93
5,212,214 07/696,830 05/18/93
5,212,217 07/552,874 05/18/93
5,212,218 07/775,461 05/18/93
5,212,225 07/910,674 05/18/93
5,212,241 07/883,946 05/18/93
5,212,243 07/894,470 05/18/93
5,212,248 07/744,743 05/18/93
5,212,252 07/791,503 05/18/93
5,212,253 07/430,995 05/18/93
5,212,254 07/686,385 05/18/93
5,212,256 07/610,205 05/18/93
5,212,275 07/957,498 05/18/93
5,212,276 07/520,472 05/18/93
5,212,280 07/767,729 05/18/93
5,212,283 07/845,090 05/18/93
5,212,297 07/864,516 05/18/93
5,212,308 07/894,503 05/18/93
5,212,312 06/912,174 05/18/93
5,212,334 07/568,609 05/18/93
5,212,349 07/673,318 05/18/93
5,212,356 07/930,075 05/18/93
5,212,363 07/783,598 05/18/93
5,212,368 07/709,304 05/18/93
5,212,377 07/838,241 05/18/93
5,212,380 07/882,176 05/18/93
5,212,385 07/747,267 05/18/93
5,212,387 07/826,011 05/18/93
5,212,388 07/877,830 05/18/93
5,212,389 07/863,423 05/18/93
5,212,393 07/926,556 05/18/93
5,212,402 07/834,929 05/18/93
5,212,408 07/832,107 05/18/93
5,212,409 07/851,115 05/18/93
5,212,414 07/589,229 05/18/93
5,212,416 07/790,476 05/18/93
5,212,422 07/814,856 05/18/93
5,212,426 07/645,163 05/18/93
5,212,432 07/845,494 05/18/93
5,212,438 07/873,711 05/18/93
5,212,450 07/603,947 05/18/93
5,212,461 07/697,770 05/18/93
5,212,464 07/829,056 05/18/93
5,212,468 07/888,516 05/18/93
5,212,469 07/529,846 05/18/93
5,212,470 07/749,598 05/18/93
5,212,473 07/658,541 05/18/93
5,212,498 07/780,785 05/18/93
5,212,505 07/807,547 05/18/93
5,212,517 07/812,818 05/18/93
5,212,525 07/773,849 05/18/93
5,212,534 07/796,414 05/18/93
5,212,537 07/551,349 05/18/93
5,212,539 07/804,219 05/18/93
5,212,567 07/595,825 05/18/93
5,212,576 07/808,226 05/18/93
5,212,581 07/868,313 05/18/93
5,212,585 07/503,873 05/18/93
5,212,588 07/682,780 05/18/93
5,212,589 07/782,944 05/18/93
5,212,595 07/632,470 05/18/93
5,212,610 07/835,211 05/18/93
5,212,612 07/651,133 05/18/93
5,212,616 07/781,446 05/18/93
5,212,617 07/879,055 05/18/93
5,212,635 07/425,640 05/18/93
5,212,641 07/586,604 05/18/93
5,212,668 07/772,417 05/18/93
5,212,676 07/650,872 05/18/93
5,212,680 07/775,627 05/18/93
5,212,685 07/672,811 05/18/93
5,212,687 07/805,357 05/18/93
5,212,690 07/742,670 05/18/93
5,212,693 07/561,630 05/18/93
5,212,708 07/529,936 05/18/93
5,212,729 07/823,994 05/18/93
5,212,736 07/738,650 05/18/93
5,212,751 07/825,207 05/18/93
5,212,760 07/878,863 05/18/93
5,212,767 07/625,166 05/18/93
5,212,769 07/477,327 05/18/93
5,212,778 07/200,003 05/18/93
5,212,784 07/601,251 05/18/93
5,212,791 07/920,000 05/18/93
5,212,793 07/754,812 05/18/93
5,212,828 07/625,978 05/18/93
5,212,829 07/836,351 05/18/93
5,212,836 07/647,791 05/18/93
PATENTS WHICH EXPIRED ON May 20, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,630,235 08/494,842 05/20/97
5,630,236 08/648,290 05/20/97
5,630,241 08/638,714 05/20/97
5,630,242 08/508,396 05/20/97
5,630,244 08/581,986 05/20/97
5,630,250 08/637,321 05/20/97
5,630,252 08/572,685 05/20/97
5,630,254 08/402,044 05/20/97
5,630,256 08/613,570 05/20/97
5,630,257 08/351,487 05/20/97
5,630,259 08/498,117 05/20/97
5,630,267 08/658,244 05/20/97
5,630,269 08/491,662 05/20/97
5,630,276 08/281,117 05/20/97
5,630,282 08/496,077 05/20/97
5,630,286 08/331,923 05/20/97
5,630,291 08/567,274 05/20/97
5,630,292 08/549,247 05/20/97
5,630,293 08/598,121 05/20/97
5,630,296 08/295,393 05/20/97
5,630,305 08/445,166 05/20/97
5,630,313 08/392,784 05/20/97
5,630,326 08/527,424 05/20/97
5,630,330 08/661,750 05/20/97
5,630,345 08/329,606 05/20/97
5,630,347 08/564,603 05/20/97
5,630,348 08/359,704 05/20/97
5,630,349 08/601,665 05/20/97
5,630,358 08/337,893 05/20/97
5,630,362 08/428,125 05/20/97
5,630,367 08/385,464 05/20/97
5,630,374 08/520,141 05/20/97
5,630,378 08/556,486 05/20/97
5,630,379 08/660,871 05/20/97
5,630,380 08/401,343 05/20/97
5,630,382 08/532,229 05/20/97
5,630,388 08/650,327 05/20/97
5,630,393 08/609,429 05/20/97
5,630,405 08/428,104 05/20/97
5,630,406 08/419,494 05/20/97
5,630,407 08/230,555 05/20/97
5,630,418 08/662,055 05/20/97
5,630,422 08/524,989 05/20/97
5,630,428 08/595,652 05/20/97
5,630,429 08/540,896 05/20/97
5,630,434 08/467,357 05/20/97
5,630,437 08/664,795 05/20/97
5,630,439 08/667,233 05/20/97
5,630,443 08/537,956 05/20/97
5,630,447 08/543,291 05/20/97
5,630,448 08/621,252 05/20/97
5,630,451 08/365,565 05/20/97
5,630,452 08/500,881 05/20/97
5,630,458 08/628,526 05/20/97
5,630,460 08/604,884 05/20/97
5,630,469 08/501,202 05/20/97
5,630,472 08/544,096 05/20/97
5,630,477 08/459,215 05/20/97
5,630,481 08/399,426 05/20/97
5,630,485 08/396,175 05/20/97
5,630,488 08/492,816 05/20/97
5,630,493 08/321,864 05/20/97
5,630,496 08/413,832 05/20/97
5,630,503 08/567,435 05/20/97
5,630,504 08/641,271 05/20/97
5,630,512 08/606,210 05/20/97
5,630,513 08/600,953 05/20/97
5,630,514 08/581,544 05/20/97
5,630,533 08/589,291 05/20/97
5,630,537 08/426,001 05/20/97
5,630,543 08/542,692 05/20/97
5,630,546 08/252,934 05/20/97
5,630,547 08/425,457 05/20/97
5,630,548 08/431,974 05/20/97
5,630,549 08/638,857 05/20/97
5,630,551 08/453,870 05/20/97
5,630,553 08/435,227 05/20/97
5,630,559 08/513,277 05/20/97
5,630,561 08/551,415 05/20/97
5,630,567 08/438,030 05/20/97
5,630,569 08/465,670 05/20/97
5,630,572 08/555,315 05/20/97
5,630,576 08/514,436 05/20/97
5,630,581 08/583,606 05/20/97
5,630,585 08/338,546 05/20/97
5,630,587 08/536,381 05/20/97
5,630,588 08/380,826 05/20/97
5,630,591 08/223,025 05/20/97
5,630,592 08/658,307 05/20/97
5,630,596 08/389,286 05/20/97
5,630,607 08/516,491 05/20/97
5,630,609 08/427,825 05/20/97
5,630,625 08/350,817 05/20/97
5,630,631 08/617,082 05/20/97
5,630,633 08/635,562 05/20/97
5,630,634 08/639,247 05/20/97
5,630,637 08/663,576 05/20/97
5,630,639 08/584,066 05/20/97
5,630,641 08/562,492 05/20/97
5,630,644 08/429,535 05/20/97
5,630,652 08/496,129 05/20/97
5,630,655 08/512,413 05/20/97
5,630,660 08/648,540 05/20/97
5,630,661 08/597,601 05/20/97
5,630,664 08/575,742 05/20/97
5,630,665 08/618,494 05/20/97
5,630,666 08/610,325 05/20/97
5,630,672 08/551,225 05/20/97
5,630,673 08/582,245 05/20/97
5,630,679 08/603,682 05/20/97
5,630,682 08/514,371 05/20/97
5,630,695 08/528,317 05/20/97
5,630,705 08/325,297 05/20/97
5,630,708 08/364,857 05/20/97
5,630,714 08/411,314 05/20/97
5,630,719 08/496,497 05/20/97
5,630,725 08/559,514 05/20/97
5,630,726 08/557,452 05/20/97
5,630,728 08/548,327 05/20/97
5,630,729 08/578,416 05/20/97
5,630,734 08/571,616 05/20/97
5,630,743 08/629,087 05/20/97
5,630,752 08/570,082 05/20/97
5,630,753 08/367,146 05/20/97
5,630,756 08/596,580 05/20/97
5,630,759 08/584,207 05/20/97
5,630,760 08/384,757 05/20/97
5,630,763 08/607,812 05/20/97
5,630,764 08/611,166 05/20/97
5,630,765 08/639,622 05/20/97
5,630,767 08/578,313 05/20/97
5,630,775 08/379,322 05/20/97
5,630,777 08/444,042 05/20/97
5,630,778 08/561,188 05/20/97
5,630,779 08/478,124 05/20/97
5,630,781 08/361,387 05/20/97
5,630,790 08/383,722 05/20/97
5,630,801 08/314,649 05/20/97
5,630,820 08/349,447 05/20/97
5,630,831 08/434,944 05/20/97
5,630,843 08/268,508 05/20/97
5,630,844 08/473,284 05/20/97
5,630,855 08/416,826 05/20/97
5,630,873 08/609,295 05/20/97
5,630,876 08/412,054 05/20/97
5,630,895 08/519,744 05/20/97
5,630,899 08/526,195 05/20/97
5,630,903 08/490,886 05/20/97
5,630,906 08/356,283 05/20/97
5,630,915 08/370,447 05/20/97
5,630,926 08/466,513 05/20/97
5,630,944 08/371,725 05/20/97
5,630,947 08/365,135 05/20/97
5,630,974 08/460,042 05/20/97
5,630,984 08/614,726 05/20/97
5,630,987 08/374,658 05/20/97
5,630,992 08/519,222 05/20/97
5,630,995 08/587,614 05/20/97
5,631,013 08/511,863 05/20/97
5,631,022 08/498,612 05/20/97
5,631,032 08/415,224 05/20/97
5,631,035 08/427,711 05/20/97
5,631,041 08/653,107 05/20/97
5,631,042 08/540,123 05/20/97
5,631,043 08/452,369 05/20/97
5,631,047 08/530,691 05/20/97
5,631,050 08/659,460 05/20/97
5,631,052 08/486,865 05/20/97
5,631,054 08/416,466 05/20/97
5,631,058 07/929,194 05/20/97
5,631,078 08/550,474 05/20/97
5,631,088 08/298,385 05/20/97
5,631,097 08/427,684 05/20/97
5,631,117 08/588,144 05/20/97
5,631,128 08/290,311 05/20/97
5,631,136 08/353,342 05/20/97
5,631,138 08/381,497 05/20/97
5,631,148 08/231,227 05/20/97
5,631,166 08/407,630 05/20/97
5,631,180 08/479,926 05/20/97
5,631,196 08/385,027 05/20/97
5,631,206 08/600,985 05/20/97
5,631,208 08/379,432 05/20/97
5,631,210 08/665,166 05/20/97
5,631,215 08/310,907 05/20/97
5,631,222 08/382,013 05/20/97
5,631,223 08/468,157 05/20/97
5,631,230 08/280,136 05/20/97
5,631,239 08/544,650 05/20/97
5,631,246 08/031,573 05/20/97
5,631,255 08/473,582 05/20/97
5,631,259 08/466,883 05/20/97
5,631,264 08/449,125 05/20/97
5,631,271 08/100,433 05/20/97
5,631,274 08/411,633 05/20/97
5,631,277 08/676,621 05/20/97
5,631,279 08/448,402 05/20/97
5,631,280 08/448,865 05/20/97
5,631,284 08/132,632 05/20/97
5,631,289 08/377,083 05/20/97
5,631,305 08/665,934 05/20/97
5,631,328 08/379,411 05/20/97
5,631,333 08/370,609 05/20/97
5,631,334 08/412,412 05/20/97
5,631,342 08/562,113 05/20/97
5,631,346 08/545,115 05/20/97
5,631,349 08/152,782 05/20/97
5,631,367 08/402,095 05/20/97
5,631,377 08/450,150 05/20/97
5,631,385 08/671,535 05/20/97
5,631,392 08/559,807 05/20/97
5,631,401 08/378,334 05/20/97
5,631,406 06/256,462 05/20/97
5,631,408 08/606,773 05/20/97
5,631,436 08/491,052 05/20/97
5,631,437 08/671,732 05/20/97
5,631,438 08/423,764 05/20/97
5,631,454 08/534,327 05/20/97
5,631,494 08/308,292 05/20/97
5,631,500 08/406,679 05/20/97
5,631,506 08/358,064 05/20/97
5,631,518 08/433,884 05/20/97
5,631,528 08/434,764 05/20/97
5,631,534 08/517,886 05/20/97
5,631,549 08/393,300 05/20/97
5,631,564 08/404,367 05/20/97
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