Notice of Expiration of Patents
Due to Failure to Pay Maintenance Fee
35 U.S.C. 41 and 37 CFR 1.362(g) provide that if the required
maintenance fee and any applicable surcharge are not paid in a patent
requiring such payment, the patent will expire at the end of the 4th, 8th
or 12th anniversary of the grant of the patent depending on the first
maintenance fee which was not paid.
According to the records of the Office, the patents listed below have
expired due to failure to pay the required maintenance fee and any
applicable surcharge.
PATENTS WHICH EXPIRED ON April 11, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,819,277 07/105,142 04/11/89
4,819,280 07/124,064 04/11/89
4,819,299 07/138,142 04/11/89
4,819,302 07/158,588 04/11/89
4,819,303 07/103,660 04/11/89
4,819,305 07/077,729 04/11/89
4,819,309 07/090,212 04/11/89
4,819,316 07/079,246 04/11/89
4,819,323 07/099,584 04/11/89
4,819,330 07/104,502 04/11/89
4,819,333 07/165,089 04/11/89
4,819,345 07/161,885 04/11/89
4,819,346 07/152,309 04/11/89
4,819,350 07/074,768 04/11/89
4,819,357 06/737,041 04/11/89
4,819,374 06/708,110 04/11/89
4,819,378 06/896,861 04/11/89
4,819,384 07/105,551 04/11/89
4,819,394 07/116,070 04/11/89
4,819,404 07/139,503 04/11/89
4,819,407 07/123,479 04/11/89
4,819,411 07/212,687 04/11/89
4,819,413 06/345,008 04/11/89
4,819,414 07/137,185 04/11/89
4,819,417 07/076,396 04/11/89
4,819,429 06/453,932 04/11/89
4,819,446 07/095,010 04/11/89
4,819,449 07/100,608 04/11/89
4,819,453 07/079,587 04/11/89
4,819,464 07/125,833 04/11/89
4,819,465 06/803,084 04/11/89
4,819,471 06/925,765 04/11/89
4,819,476 07/074,656 04/11/89
4,819,489 07/191,453 04/11/89
4,819,498 07/016,798 04/11/89
4,819,501 07/180,496 04/11/89
4,819,503 07/137,558 04/11/89
4,819,508 07/122,276 04/11/89
4,819,509 07/081,469 04/11/89
4,819,510 07/037,677 04/11/89
4,819,516 07/141,533 04/11/89
4,819,526 06/873,612 04/11/89
4,819,533 07/084,688 04/11/89
4,819,546 07/035,208 04/11/89
4,819,549 07/152,634 04/11/89
4,819,557 07/218,806 04/11/89
4,819,567 07/057,124 04/11/89
4,819,571 07/082,452 04/11/89
4,819,589 07/203,623 04/11/89
4,819,593 07/187,440 04/11/89
4,819,594 07/144,740 04/11/89
4,819,599 07/071,908 04/11/89
4,819,604 07/131,225 04/11/89
4,819,612 07/046,618 04/11/89
4,819,617 06/903,445 04/11/89
4,819,621 07/017,752 04/11/89
4,819,624 07/064,173 04/11/89
4,819,628 07/076,949 04/11/89
4,819,644 07/114,036 04/11/89
4,819,652 06/699,676 04/11/89
4,819,664 07/159,426 04/11/89
4,819,665 07/006,191 04/11/89
4,819,668 07/033,963 04/11/89
4,819,669 06/943,259 04/11/89
4,819,670 07/087,531 04/11/89
4,819,674 07/021,871 04/11/89
4,819,675 07/192,740 04/11/89
4,819,676 06/819,911 04/11/89
4,819,677 07/089,529 04/11/89
4,819,680 07/204,531 04/11/89
4,819,690 07/130,881 04/11/89
4,819,709 07/182,414 04/11/89
4,819,710 07/098,236 04/11/89
4,819,712 07/165,931 04/11/89
4,819,715 06/891,430 04/11/89
4,819,724 07/092,750 04/11/89
4,819,725 07/137,991 04/11/89
4,819,729 07/066,582 04/11/89
4,819,734 07/168,196 04/11/89
4,819,740 07/121,666 04/11/89
4,819,750 07/156,422 04/11/89
4,819,758 07/085,231 04/11/89
4,819,767 07/095,107 04/11/89
4,819,772 07/178,169 04/11/89
4,819,775 07/091,882 04/11/89
4,819,782 06/811,360 04/11/89
4,819,786 06/421,333 04/11/89
4,819,792 07/003,377 04/11/89
4,819,806 07/037,110 04/11/89
4,819,808 06/869,397 04/11/89
4,819,813 06/899,225 04/11/89
4,819,827 07/109,476 04/11/89
4,819,832 07/085,209 04/11/89
4,819,837 06/822,011 04/11/89
4,819,838 07/035,888 04/11/89
4,819,839 06/708,824 04/11/89
4,819,843 07/116,295 04/11/89
4,819,871 06/921,195 04/11/89
4,819,872 07/060,177 04/11/89
4,819,881 07/129,704 04/11/89
4,819,884 07/138,363 04/11/89
4,819,885 07/138,351 04/11/89
4,819,891 07/183,131 04/11/89
4,819,894 07/103,595 04/11/89
4,819,898 07/036,599 04/11/89
4,819,922 07/155,133 04/11/89
4,819,923 07/054,844 04/11/89
4,819,929 07/017,550 04/11/89
4,819,939 06/924,000 04/11/89
4,819,952 07/149,425 04/11/89
4,819,953 07/119,685 04/11/89
4,819,967 06/466,236 04/11/89
4,820,001 07/170,126 04/11/89
4,820,012 07/116,301 04/11/89
4,820,015 07/139,310 04/11/89
4,820,024 06/929,389 04/11/89
4,820,047 07/136,919 04/11/89
4,820,066 07/020,347 04/11/89
4,820,082 07/048,454 04/11/89
4,820,083 07/114,474 04/11/89
4,820,084 07/084,791 04/11/89
4,820,092 07/116,307 04/11/89
4,820,093 06/762,862 04/11/89
4,820,102 06/838,277 04/11/89
4,820,116 07/099,180 04/11/89
4,820,118 07/148,254 04/11/89
4,820,119 07/197,726 04/11/89
4,820,126 07/158,814 04/11/89
4,820,141 07/131,715 04/11/89
4,820,142 07/119,141 04/11/89
4,820,163 07/154,093 04/11/89
4,820,168 07/204,617 04/11/89
4,820,174 06/893,800 04/11/89
4,820,182 07/134,635 04/11/89
4,820,184 07/103,967 04/11/89
4,820,186 07/171,901 04/11/89
4,820,198 07/111,908 04/11/89
4,820,199 07/135,889 04/11/89
4,820,200 07/014,909 04/11/89
4,820,204 06/940,835 04/11/89
4,820,206 07/164,362 04/11/89
4,820,207 07/087,136 04/11/89
4,820,215 07/186,760 04/11/89
4,820,216 07/148,055 04/11/89
4,820,221 07/170,986 04/11/89
4,820,232 07/196,683 04/11/89
4,820,241 07/105,184 04/11/89
4,820,244 07/217,452 04/11/89
4,820,247 07/146,741 04/11/89
4,820,261 07/086,816 04/11/89
4,820,280 07/006,366 04/11/89
4,820,298 07/123,367 04/11/89
4,820,326 07/136,191 04/11/89
4,820,328 07/069,179 04/11/89
4,820,334 06/918,111 04/11/89
4,820,337 07/030,195 04/11/89
4,820,342 07/180,333 04/11/89
4,820,350 06/806,370 04/11/89
4,820,367 07/056,385 04/11/89
4,820,374 06/642,569 04/11/89
4,820,382 07/180,624 04/11/89
4,820,387 07/168,463 04/11/89
4,820,391 07/207,562 04/11/89
4,820,398 07/050,542 04/11/89
4,820,401 07/048,376 04/11/89
4,820,404 07/014,964 04/11/89
4,820,426 07/029,754 04/11/89
4,820,429 07/058,626 04/11/89
4,820,438 07/149,722 04/11/89
4,820,441 07/187,757 04/11/89
4,820,458 06/882,274 04/11/89
4,820,459 07/119,400 04/11/89
4,820,461 07/212,112 04/11/89
4,820,468 06/714,942 04/11/89
4,820,470 07/071,876 04/11/89
4,820,473 06/795,466 04/11/89
4,820,480 07/078,383 04/11/89
4,820,484 06/929,105 04/11/89
4,820,485 07/010,598 04/11/89
4,820,498 06/907,934 04/11/89
4,820,499 06/931,180 04/11/89
4,820,500 07/014,030 04/11/89
4,820,501 07/162,123 04/11/89
4,820,506 07/045,618 04/11/89
4,820,508 07/065,348 04/11/89
4,820,518 06/940,431 04/11/89
4,820,520 06/360,724 04/11/89
4,820,526 07/082,256 04/11/89
4,820,535 07/110,046 04/11/89
4,820,539 07/096,693 04/11/89
4,820,547 07/211,651 04/11/89
4,820,549 07/051,518 04/11/89
4,820,554 06/918,632 04/11/89
4,820,556 07/056,301 04/11/89
4,820,558 07/127,443 04/11/89
4,820,559 07/202,881 04/11/89
4,820,567 06/921,997 04/11/89
4,820,570 06/857,504 04/11/89
4,820,573 07/091,367 04/11/89
4,820,586 07/112,364 04/11/89
4,820,593 07/136,435 04/11/89
4,820,595 06/906,994 04/11/89
4,820,596 07/082,889 04/11/89
4,820,598 07/178,923 04/11/89
4,820,609 07/067,263 04/11/89
4,820,615 07/228,169 04/11/89
4,820,616 07/013,427 04/11/89
4,820,617 07/142,285 04/11/89
4,820,619 06/933,215 04/11/89
4,820,620 07/115,695 04/11/89
4,820,634 07/062,383 04/11/89
4,820,638 06/495,944 04/11/89
4,820,641 06/749,564 04/11/89
4,820,659 07/108,665 04/11/89
4,820,660 07/136,377 04/11/89
4,820,661 07/205,002 04/11/89
4,820,674 07/149,092 04/11/89
4,820,679 07/123,510 04/11/89
4,820,680 07/100,659 04/11/89
4,820,689 06/898,900 04/11/89
4,820,692 07/001,778 04/11/89
4,820,716 07/013,744 04/11/89
4,820,730 07/217,405 04/11/89
4,820,735 07/087,999 04/11/89
4,820,739 07/035,352 04/11/89
4,820,745 06/860,635 04/11/89
4,820,756 07/065,226 04/11/89
4,820,757 07/167,726 04/11/89
4,820,762 07/205,536 04/11/89
4,820,766 07/013,734 04/11/89
4,820,769 07/118,910 04/11/89
4,820,774 07/108,499 04/11/89
4,820,777 06/915,795 04/11/89
4,820,778 07/021,267 04/11/89
4,820,784 07/143,558 04/11/89
4,820,788 06/925,552 04/11/89
4,820,791 07/011,093 04/11/89
4,820,792 07/036,655 04/11/89
4,820,794 07/038,682 04/11/89
4,820,796 07/001,657 04/11/89
4,820,809 07/144,648 04/11/89
4,820,813 07/155,399 04/11/89
4,820,816 07/233,088 04/11/89
4,820,820 07/102,818 04/11/89
4,820,821 07/039,765 04/11/89
4,820,826 07/147,476 04/11/89
4,820,848 07/177,211 04/11/89
4,820,855 07/109,199 04/11/89
4,820,859 06/794,340 04/11/89
4,820,862 06/630,264 04/11/89
4,820,868 06/912,957 04/11/89
4,820,870 07/033,916 04/11/89
4,820,871 07/105,856 04/11/89
4,820,873 07/102,275 04/11/89
4,820,886 07/140,648 04/11/89
4,820,895 06/767,267 04/11/89
4,820,906 07/025,306 04/11/89
4,820,907 07/131,634 04/11/89
4,820,910 06/896,666 04/11/89
4,820,912 06/910,153 04/11/89
4,820,921 07/085,992 04/11/89
4,820,925 07/028,982 04/11/89
4,820,928 07/106,499 04/11/89
4,820,934 07/134,994 04/11/89
4,820,936 07/094,363 04/11/89
4,820,946 07/195,929 04/11/89
4,820,950 07/160,774 04/11/89
4,820,952 07/097,628 04/11/89
4,820,960 07/101,513 04/11/89
4,820,971 06/868,781 04/11/89
4,820,980 07/045,450 04/11/89
4,820,987 07/058,295 04/11/89
4,820,991 07/251,958 04/11/89
4,820,999 07/096,563 04/11/89
4,821,005 07/136,675 04/11/89
4,821,011 07/029,646 04/11/89
4,821,013 07/124,977 04/11/89
4,821,016 07/124,376 04/11/89
4,821,018 07/092,883 04/11/89
4,821,023 07/141,706 04/11/89
4,821,025 07/090,562 04/11/89
4,821,037 06/905,824 04/11/89
4,821,052 07/102,434 04/11/89
4,821,054 07/200,474 04/11/89
4,821,059 07/153,494 04/11/89
4,821,067 06/925,064 04/11/89
4,821,071 07/046,944 04/11/89
4,821,080 07/152,104 04/11/89
4,821,086 07/113,779 04/11/89
4,821,093 07/228,795 04/11/89
4,821,108 06/935,341 04/11/89
4,821,110 07/141,149 04/11/89
4,821,111 07/146,980 04/11/89
4,821,140 07/100,620 04/11/89
4,821,141 07/100,632 04/11/89
4,821,144 07/115,705 04/11/89
4,821,145 07/121,436 04/11/89
4,821,146 07/121,482 04/11/89
4,821,149 07/101,904 04/11/89
4,821,160 07/038,623 04/11/89
4,821,165 07/062,806 04/11/89
4,821,166 07/164,315 04/11/89
4,821,171 07/233,884 04/11/89
4,821,177 06/902,545 04/11/89
4,821,185 06/864,835 04/11/89
4,821,189 07/100,893 04/11/89
4,821,192 06/936,092 04/11/89
4,821,194 06/917,893 04/11/89
4,821,198 07/048,632 04/11/89
4,821,207 07/043,581 04/11/89
4,821,218 06/867,188 04/11/89
4,821,226 07/008,730 04/11/89
4,821,227 06/767,192 04/11/89
4,821,245 07/104,343 04/11/89
4,821,246 07/048,223 04/11/89
4,821,261 06/890,475 04/11/89
4,821,265 07/035,130 04/11/89
4,821,269 06/922,367 04/11/89
4,821,283 07/146,019 04/11/89
4,821,284 07/079,363 04/11/89
4,821,291 06/909,548 04/11/89
4,821,304 06/948,043 04/11/89
4,821,306 06/744,792 04/11/89
4,821,313 07/214,430 04/11/89
4,821,320 07/053,996 04/11/89
4,821,331 07/208,534 04/11/89
4,821,332 07/017,093 04/11/89
4,821,333 06/899,518 04/11/89
PATENTS WHICH EXPIRED ON April 6, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,199,116 07/698,290 04/06/93
5,199,119 07/723,584 04/06/93
5,199,123 07/860,223 04/06/93
5,199,124 07/895,948 04/06/93
5,199,137 07/674,696 04/06/93
5,199,144 07/708,045 04/06/93
5,199,148 07/800,245 04/06/93
5,199,159 07/796,115 04/06/93
5,199,163 07/891,627 04/06/93
5,199,175 07/522,188 04/06/93
5,199,182 07/895,783 04/06/93
5,199,191 07/710,769 04/06/93
5,199,199 07/647,430 04/06/93
5,199,202 07/830,519 04/06/93
5,199,207 07/786,285 04/06/93
5,199,208 07/842,542 04/06/93
5,199,221 07/835,280 04/06/93
5,199,222 07/696,137 04/06/93
5,199,225 07/921,227 04/06/93
5,199,228 07/868,527 04/06/93
5,199,231 07/820,759 04/06/93
5,199,237 07/816,347 04/06/93
5,199,244 07/491,951 04/06/93
5,199,247 07/886,528 04/06/93
5,199,255 07/679,803 04/06/93
5,199,260 07/808,407 04/06/93
5,199,266 07/837,963 04/06/93
5,199,271 07/645,223 04/06/93
5,199,279 07/744,483 04/06/93
5,199,281 07/635,482 04/06/93
5,199,287 07/746,993 04/06/93
5,199,293 07/795,045 04/06/93
5,199,297 07/771,622 04/06/93
5,199,301 07/753,785 04/06/93
5,199,305 07/779,672 04/06/93
5,199,313 07/917,171 04/06/93
5,199,322 07/853,497 04/06/93
5,199,329 07/961,802 04/06/93
5,199,331 07/917,413 04/06/93
5,199,334 07/889,672 04/06/93
5,199,337 07/755,948 04/06/93
5,199,339 07/793,463 04/06/93
5,199,350 07/809,760 04/06/93
5,199,354 07/840,640 04/06/93
5,199,355 07/749,356 04/06/93
5,199,357 07/673,918 04/06/93
5,199,358 07/796,617 04/06/93
5,199,359 07/885,785 04/06/93
5,199,361 07/747,272 04/06/93
5,199,364 07/499,807 04/06/93
5,199,369 07/859,274 04/06/93
5,199,379 07/758,794 04/06/93
5,199,380 07/878,227 04/06/93
5,199,396 07/933,534 04/06/93
5,199,397 07/933,535 04/06/93
5,199,400 07/796,621 04/06/93
5,199,412 07/693,294 04/06/93
5,199,446 07/729,889 04/06/93
5,199,448 07/631,119 04/06/93
5,199,450 07/660,932 04/06/93
5,199,452 07/901,180 04/06/93
5,199,455 07/799,405 04/06/93
5,199,459 07/865,291 04/06/93
5,199,464 07/877,622 04/06/93
5,199,467 07/855,904 04/06/93
5,199,469 07/752,001 04/06/93
5,199,472 07/651,627 04/06/93
5,199,474 07/803,490 04/06/93
5,199,476 07/820,583 04/06/93
5,199,485 07/738,589 04/06/93
5,199,492 07/762,150 04/06/93
5,199,496 07/778,546 04/06/93
5,199,517 07/632,369 04/06/93
5,199,518 07/838,480 04/06/93
5,199,520 07/804,967 04/06/93
5,199,521 07/689,197 04/06/93
5,199,529 07/795,567 04/06/93
5,199,530 07/771,025 04/06/93
5,199,533 07/852,014 04/06/93
5,199,534 07/808,101 04/06/93
5,199,547 07/919,858 04/06/93
5,199,550 07/752,626 04/06/93
5,199,558 07/720,472 04/06/93
5,199,560 07/937,141 04/06/93
5,199,577 07/750,288 04/06/93
5,199,582 07/648,027 04/06/93
5,199,590 07/767,118 04/06/93
5,199,594 07/492,405 04/06/93
5,199,595 07/956,335 04/06/93
5,199,597 07/753,221 04/06/93
5,199,615 07/936,080 04/06/93
5,199,616 07/867,883 04/06/93
5,199,618 07/621,615 04/06/93
5,199,627 07/678,534 04/06/93
5,199,629 07/810,115 04/06/93
5,199,632 07/915,622 04/06/93
5,199,635 07/753,855 04/06/93
5,199,639 07/833,427 04/06/93
5,199,641 07/671,881 04/06/93
5,199,645 07/835,360 04/06/93
5,199,647 07/803,587 04/06/93
5,199,648 07/672,187 04/06/93
5,199,654 07/899,887 04/06/93
5,199,655 07/801,032 04/06/93
5,199,657 07/705,323 04/06/93
5,199,658 07/835,310 04/06/93
5,199,661 07/676,380 04/06/93
5,199,664 07/653,162 04/06/93
5,199,667 07/692,370 04/06/93
5,199,668 07/824,576 04/06/93
5,199,674 07/764,563 04/06/93
5,199,678 07/836,096 04/06/93
5,199,691 07/789,850 04/06/93
5,199,693 07/864,853 04/06/93
5,199,703 07/799,226 04/06/93
5,199,705 07/804,929 04/06/93
5,199,714 07/637,333 04/06/93
5,199,721 07/839,794 04/06/93
5,199,722 07/725,680 04/06/93
5,199,728 07/680,097 04/06/93
5,199,732 07/739,691 04/06/93
5,199,733 07/756,518 04/06/93
5,199,736 07/777,384 04/06/93
5,199,742 07/854,104 04/06/93
5,199,746 07/799,215 04/06/93
5,199,753 07/823,779 04/06/93
5,199,773 07/630,521 04/06/93
5,199,783 07/921,897 04/06/93
5,199,784 07/596,719 04/06/93
5,199,792 07/779,468 04/06/93
5,199,799 07/792,995 04/06/93
5,199,800 07/777,602 04/06/93
5,199,801 07/786,270 04/06/93
5,199,804 07/782,045 04/06/93
5,199,811 07/667,037 04/06/93
5,199,812 07/757,372 04/06/93
5,199,818 07/773,560 04/06/93
5,199,824 07/923,519 04/06/93
5,199,826 07/836,785 04/06/93
5,199,836 07/867,344 04/06/93
5,199,839 07/773,516 04/06/93
5,199,850 07/738,377 04/06/93
5,199,859 07/701,890 04/06/93
5,199,860 07/819,738 04/06/93
5,199,866 07/860,651 04/06/93
5,199,872 07/804,450 04/06/93
5,199,874 07/691,603 04/06/93
5,199,876 07/938,280 04/06/93
5,199,882 07/854,111 04/06/93
5,199,887 07/767,979 04/06/93
5,199,893 07/733,609 04/06/93
5,199,899 07/760,949 04/06/93
5,199,901 07/875,128 04/06/93
5,199,902 07/812,304 04/06/93
5,199,905 07/848,673 04/06/93
5,199,909 07/865,477 04/06/93
5,199,910 07/812,306 04/06/93
5,199,911 07/852,850 04/06/93
5,199,914 07/736,228 04/06/93
5,199,915 07/664,257 04/06/93
5,199,922 07/811,245 04/06/93
5,199,925 07/609,240 04/06/93
5,199,930 07/726,857 04/06/93
5,199,933 07/895,903 04/06/93
5,199,938 07/786,152 04/06/93
5,199,940 07/757,972 04/06/93
5,199,959 07/848,474 04/06/93
5,199,963 07/922,508 04/06/93
5,199,965 07/876,789 04/06/93
5,199,970 07/605,829 04/06/93
5,199,971 07/452,384 04/06/93
5,199,973 07/891,933 04/06/93
5,199,990 07/696,833 04/06/93
5,199,992 07/793,134 04/06/93
5,199,997 07/714,651 04/06/93
5,200,011 07/674,347 04/06/93
5,200,012 07/625,402 04/06/93
5,200,013 07/802,624 04/06/93
5,200,023 07/753,189 04/06/93
5,200,034 07/691,201 04/06/93
5,200,038 07/271,549 04/06/93
5,200,040 07/668,742 04/06/93
5,200,043 07/814,800 04/06/93
5,200,044 07/728,297 04/06/93
5,200,045 07/902,000 04/06/93
5,200,054 07/917,243 04/06/93
5,200,055 07/752,038 04/06/93
5,200,057 07/787,932 04/06/93
5,200,059 07/796,519 04/06/93
5,200,061 07/763,008 04/06/93
5,200,097 07/512,887 04/06/93
5,200,101 07/719,407 04/06/93
5,200,104 07/790,650 04/06/93
5,200,115 07/656,050 04/06/93
5,200,122 07/768,511 04/06/93
5,200,125 07/450,847 04/06/93
5,200,136 07/648,651 04/06/93
5,200,141 07/741,790 04/06/93
5,200,143 07/864,329 04/06/93
5,200,144 07/864,717 04/06/93
5,200,146 07/661,553 04/06/93
5,200,153 07/623,972 04/06/93
5,200,172 07/628,612 04/06/93
5,200,173 07/740,170 04/06/93
5,200,174 07/696,375 04/06/93
5,200,181 07/593,345 04/06/93
5,200,184 07/728,763 04/06/93
5,200,191 07/757,553 04/06/93
5,200,192 07/270,957 04/06/93
5,200,204 07/667,532 04/06/93
5,200,225 07/697,860 04/06/93
5,200,229 07/815,933 04/06/93
5,200,233 07/592,189 04/06/93
5,200,237 07/783,169 04/06/93
5,200,238 07/766,492 04/06/93
5,200,244 07/719,613 04/06/93
5,200,255 07/385,063 04/06/93
5,200,256 07/300,815 04/06/93
5,200,266 07/188,078 04/06/93
5,200,271 07/887,033 04/06/93
5,200,274 07/896,944 04/06/93
5,200,276 07/914,013 04/06/93
5,200,277 07/454,961 04/06/93
5,200,279 07/774,932 04/06/93
5,200,281 07/794,090 04/06/93
5,200,286 07/652,254 04/06/93
5,200,287 07/731,866 04/06/93
5,200,291 07/684,547 04/06/93
5,200,295 07/804,610 04/06/93
5,200,296 07/865,190 04/06/93
5,200,297 07/616,854 04/06/93
5,200,301 07/795,118 04/06/93
5,200,305 07/589,168 04/06/93
5,200,308 07/636,419 04/06/93
5,200,312 07/814,160 04/06/93
5,200,316 07/480,428 04/06/93
5,200,317 07/821,280 04/06/93
5,200,320 07/130,036 04/06/93
5,200,330 07/582,829 04/06/93
5,200,338 07/277,802 04/06/93
5,200,344 07/612,330 04/06/93
5,200,363 07/830,205 04/06/93
5,200,371 07/631,272 04/06/93
5,200,372 07/635,985 04/06/93
5,200,373 07/670,734 04/06/93
5,200,374 07/680,944 04/06/93
5,200,375 07/819,563 04/06/93
5,200,376 07/690,497 04/06/93
5,200,379 07/786,713 04/06/93
5,200,387 07/553,746 04/06/93
5,200,392 07/599,604 04/06/93
5,200,394 07/474,806 04/06/93
5,200,401 07/656,291 04/06/93
5,200,404 07/670,863 04/06/93
5,200,414 07/919,255 04/06/93
5,200,415 07/783,869 04/06/93
5,200,418 07/728,875 04/06/93
5,200,420 07/677,731 04/06/93
5,200,426 07/567,499 04/06/93
5,200,429 07/765,739 04/06/93
5,200,433 07/870,858 04/06/93
5,200,435 07/757,862 04/06/93
5,200,440 07/606,870 04/06/93
5,200,442 07/806,582 04/06/93
5,200,445 07/757,591 04/06/93
5,200,448 07/860,310 04/06/93
5,200,458 07/689,944 04/06/93
5,200,463 07/837,960 04/06/93
5,200,478 07/780,787 04/06/93
5,200,482 07/814,175 04/06/93
5,200,488 07/787,103 04/06/93
5,200,490 07/838,846 04/06/93
5,200,495 07/887,000 04/06/93
5,200,498 07/827,438 04/06/93
5,200,501 07/660,842 04/06/93
5,200,513 07/542,902 04/06/93
5,200,515 07/701,125 04/06/93
5,200,518 07/658,542 04/06/93
5,200,520 07/804,372 04/06/93
5,200,525 07/301,453 04/06/93
5,200,542 07/925,133 04/06/93
5,200,543 07/906,835 04/06/93
5,200,551 07/741,424 04/06/93
5,200,555 07/734,598 04/06/93
5,200,570 07/558,569 04/06/93
5,200,577 07/714,616 04/06/93
5,200,585 07/788,705 04/06/93
5,200,590 07/803,257 04/06/93
5,200,619 07/770,891 04/06/93
5,200,620 07/788,018 04/06/93
5,200,629 07/845,709 04/06/93
5,200,634 07/803,798 04/06/93
5,200,641 07/724,788 04/06/93
5,200,642 07/454,751 04/06/93
5,200,644 07/357,780 04/06/93
5,200,649 07/796,640 04/06/93
5,200,671 07/840,491 04/06/93
5,200,674 07/610,771 04/06/93
5,200,675 07/788,332 04/06/93
5,200,677 07/877,309 04/06/93
5,200,681 07/908,754 04/06/93
5,200,682 07/744,900 04/06/93
5,200,688 07/708,572 04/06/93
5,200,693 07/661,019 04/06/93
5,200,698 07/465,862 04/06/93
5,200,700 07/620,177 04/06/93
5,200,714 07/725,486 04/06/93
5,200,715 07/756,180 04/06/93
5,200,729 07/479,301 04/06/93
5,200,735 07/673,259 04/06/93
5,200,741 07/441,879 04/06/93
5,200,744 07/472,961 04/06/93
5,200,766 07/662,822 04/06/93
5,200,769 07/796,755 04/06/93
5,200,770 07/790,791 04/06/93
5,200,777 07/787,356 04/06/93
5,200,781 07/905,319 04/06/93
5,200,790 07/800,016 04/06/93
5,200,793 07/839,746 04/06/93
5,200,796 07/582,893 04/06/93
5,200,803 07/690,442 04/06/93
5,200,807 07/520,482 04/06/93
5,200,816 07/734,310 04/06/93
5,200,818 07/673,328 04/06/93
5,200,819 07/835,761 04/06/93
5,200,834 07/330,406 04/06/93
5,200,838 07/613,636 04/06/93
5,200,845 07/857,678 04/06/93
5,200,853 07/840,151 04/06/93
5,200,859 07/665,754 04/06/93
5,200,881 07/736,715 04/06/93
5,200,885 07/513,997 04/06/93
5,200,908 07/533,540 04/06/93
5,200,909 07/629,644 04/06/93
5,200,927 07/723,385 04/06/93
5,200,928 07/789,229 04/06/93
5,200,929 07/860,930 04/06/93
5,200,942 07/689,282 04/06/93
5,200,949 07/697,163 04/06/93
5,200,950 07/690,360 04/06/93
5,200,963 07/543,915 04/06/93
5,200,978 07/681,965 04/06/93
5,200,980 07/743,259 04/06/93
5,200,995 07/632,980 04/06/93
5,201,005 07/700,983 04/06/93
5,201,012 07/712,189 04/06/93
5,201,016 07/752,543 04/06/93
5,201,019 07/729,982 04/06/93
5,201,021 07/885,265 04/06/93
5,201,026 07/716,253 04/06/93
5,201,035 07/549,870 04/06/93
5,201,037 07/430,952 04/06/93
5,201,044 07/509,853 04/06/93
5,201,049 07/750,661 04/06/93
5,201,053 07/576,049 04/06/93
5,201,058 07/418,215 04/06/93
5,201,060 07/509,955 04/06/93
5,201,064 07/725,013 04/06/93
5,201,065 07/581,946 04/06/93
5,201,071 07/589,305 04/06/93
PATENTS WHICH EXPIRED ON April 8, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,617,580 08/390,550 04/08/97
5,617,585 08/668,625 04/08/97
5,617,587 08/615,114 04/08/97
5,617,589 08/375,294 04/08/97
5,617,592 08/616,093 04/08/97
5,617,594 08/554,291 04/08/97
5,617,597 08/618,355 04/08/97
5,617,598 08/505,690 04/08/97
5,617,607 08/518,293 04/08/97
5,617,608 08/299,191 04/08/97
5,617,611 08/680,123 04/08/97
5,617,616 08/478,694 04/08/97
5,617,617 08/638,821 04/08/97
5,617,621 08/519,813 04/08/97
5,617,623 08/448,791 04/08/97
5,617,624 08/484,362 04/08/97
5,617,634 08/441,841 04/08/97
5,617,636 08/497,021 04/08/97
5,617,637 08/630,573 04/08/97
5,617,642 08/414,169 04/08/97
5,617,646 08/280,396 04/08/97
5,617,655 08/454,490 04/08/97
5,617,657 08/592,923 04/08/97
5,617,659 08/492,447 04/08/97
5,617,664 08/517,428 04/08/97
5,617,667 08/519,022 04/08/97
5,617,668 08/491,546 04/08/97
5,617,669 08/438,108 04/08/97
5,617,674 08/642,200 04/08/97
5,617,675 08/550,577 04/08/97
5,617,688 08/633,062 04/08/97
5,617,700 08/503,389 04/08/97
5,617,716 08/307,999 04/08/97
5,617,724 08/580,558 04/08/97
5,617,741 08/597,414 04/08/97
5,617,743 08/613,591 04/08/97
5,617,745 08/582,870 04/08/97
5,617,749 08/650,296 04/08/97
5,617,752 08/518,345 04/08/97
5,617,755 08/514,099 04/08/97
5,617,756 08/443,410 04/08/97
5,617,757 08/378,779 04/08/97
5,617,765 08/497,870 04/08/97
5,617,767 08/564,907 04/08/97
5,617,771 08/585,180 04/08/97
5,617,780 08/230,131 04/08/97
5,617,797 08/630,968 04/08/97
5,617,799 08/411,544 04/08/97
5,617,800 08/394,146 04/08/97
5,617,802 08/532,218 04/08/97
5,617,804 08/568,972 04/08/97
5,617,806 08/328,748 04/08/97
5,617,815 08/433,114 04/08/97
5,617,819 08/608,932 04/08/97
5,617,837 08/243,250 04/08/97
5,617,838 08/421,230 04/08/97
5,617,840 08/283,992 04/08/97
5,617,842 08/377,399 04/08/97
5,617,847 08/542,070 04/08/97
5,617,851 08/403,306 04/08/97
5,617,856 08/308,731 04/08/97
5,617,859 08/537,574 04/08/97
5,617,878 08/656,671 04/08/97
5,617,880 08/655,792 04/08/97
5,617,882 08/333,283 04/08/97
5,617,886 08/396,562 04/08/97
5,617,894 08/492,883 04/08/97
5,617,899 08/410,674 04/08/97
5,617,912 08/422,342 04/08/97
5,617,919 08/517,530 04/08/97
5,617,921 08/535,978 04/08/97
5,617,923 08/498,952 04/08/97
5,617,924 08/277,961 04/08/97
5,617,943 08/363,686 04/08/97
5,617,947 08/349,312 04/08/97
5,617,949 08/624,788 04/08/97
5,617,958 08/351,671 04/08/97
5,617,960 08/458,560 04/08/97
5,617,962 08/504,590 04/08/97
5,617,963 08/490,521 04/08/97
5,617,964 08/331,562 04/08/97
5,617,966 08/356,723 04/08/97
5,617,970 08/583,546 04/08/97
5,617,977 08/464,744 04/08/97
5,617,981 08/390,489 04/08/97
5,617,982 08/477,230 04/08/97
5,617,983 08/420,865 04/08/97
5,617,984 08/390,665 04/08/97
5,617,987 08/439,153 04/08/97
5,617,993 08/341,412 04/08/97
5,617,994 08/324,232 04/08/97
5,618,003 08/401,169 04/08/97
5,618,004 08/485,358 04/08/97
5,618,009 08/544,879 04/08/97
5,618,019 08/476,612 04/08/97
5,618,030 08/620,792 04/08/97
5,618,035 08/344,910 04/08/97
5,618,039 08/503,865 04/08/97
5,618,040 08/596,633 04/08/97
5,618,042 08/313,061 04/08/97
5,618,053 08/385,732 04/08/97
5,618,059 08/515,895 04/08/97
5,618,060 08/429,425 04/08/97
5,618,061 08/531,791 04/08/97
5,618,070 08/385,789 04/08/97
5,618,072 08/463,934 04/08/97
5,618,074 08/630,460 04/08/97
5,618,078 08/319,317 04/08/97
5,618,085 08/555,632 04/08/97
5,618,100 08/607,998 04/08/97
5,618,103 08/318,129 04/08/97
5,618,104 08/427,483 04/08/97
5,618,105 08/565,971 04/08/97
5,618,113 08/536,217 04/08/97
5,618,121 08/535,959 04/08/97
5,618,124 08/646,095 04/08/97
5,618,126 08/602,340 04/08/97
5,618,128 08/632,564 04/08/97
5,618,131 08/486,911 04/08/97
5,618,138 08/225,136 04/08/97
5,618,149 08/448,601 04/08/97
5,618,153 08/325,211 04/08/97
5,618,157 08/433,648 04/08/97
5,618,159 08/658,900 04/08/97
5,618,168 08/582,172 04/08/97
5,618,210 08/490,458 04/08/97
5,618,214 08/490,972 04/08/97
5,618,215 08/370,964 04/08/97
5,618,219 08/577,299 04/08/97
5,618,221 08/376,242 04/08/97
5,618,223 08/369,076 04/08/97
5,618,226 08/607,378 04/08/97
5,618,228 08/491,799 04/08/97
5,618,231 08/541,527 04/08/97
5,618,234 08/388,841 04/08/97
5,618,242 08/524,172 04/08/97
5,618,249 08/486,840 04/08/97
5,618,261 08/330,513 04/08/97
5,618,262 08/488,833 04/08/97
5,618,264 08/297,749 04/08/97
5,618,269 08/435,092 04/08/97
5,618,270 08/452,302 04/08/97
5,618,272 08/642,995 04/08/97
5,618,274 08/224,832 04/08/97
5,618,299 08/512,300 04/08/97
5,618,302 08/418,674 04/08/97
5,618,304 08/182,853 04/08/97
5,618,305 08/375,423 04/08/97
5,618,308 08/573,283 04/08/97
5,618,321 08/306,816 04/08/97
5,618,325 08/266,584 04/08/97
5,618,331 08/566,830 04/08/97
5,618,334 08/497,655 04/08/97
5,618,335 08/274,901 04/08/97
5,618,362 08/365,569 04/08/97
5,618,367 08/425,005 04/08/97
5,618,370 08/410,226 04/08/97
5,618,372 08/559,742 04/08/97
5,618,376 08/403,705 04/08/97
5,618,385 08/331,335 04/08/97
5,618,389 08/671,633 04/08/97
5,618,392 08/421,840 04/08/97
5,618,399 08/595,648 04/08/97
5,618,411 08/331,635 04/08/97
5,618,413 08/457,990 04/08/97
5,618,420 08/253,291 04/08/97
5,618,421 08/607,136 04/08/97
5,618,423 08/685,297 04/08/97
5,618,431 08/613,721 04/08/97
5,618,432 08/183,155 04/08/97
5,618,437 08/246,091 04/08/97
5,618,440 08/644,741 04/08/97
5,618,445 08/504,985 04/08/97
5,618,446 08/393,485 04/08/97
5,618,448 08/447,604 04/08/97
5,618,454 08/465,978 04/08/97
5,618,455 08/508,961 04/08/97
5,618,457 08/337,892 04/08/97
5,618,458 08/438,566 04/08/97
5,618,463 08/351,952 04/08/97
5,618,472 08/305,183 04/08/97
5,618,478 08/623,865 04/08/97
5,618,488 08/297,452 04/08/97
5,618,490 08/454,390 04/08/97
5,618,528 08/203,106 04/08/97
5,618,546 08/228,045 04/08/97
5,618,555 08/430,384 04/08/97
5,618,565 08/531,237 04/08/97
5,618,573 08/560,818 04/08/97
5,618,580 08/454,292 04/08/97
5,618,587 08/350,867 04/08/97
5,618,591 08/441,379 04/08/97
5,618,602 08/409,221 04/08/97
5,618,604 08/528,991 04/08/97
5,618,628 08/594,080 04/08/97
5,618,637 08/408,106 04/08/97
5,618,641 08/161,970 04/08/97
5,618,646 08/586,467 04/08/97
5,618,654 08/168,171 04/08/97
5,618,673 08/476,614 04/08/97
5,618,724 08/648,646 04/08/97
5,618,725 08/387,723 04/08/97
5,618,730 08/550,216 04/08/97
5,618,735 08/405,549 04/08/97
5,618,736 08/262,506 04/08/97
5,618,762 08/439,374 04/08/97
5,618,767 08/584,386 04/08/97
5,618,774 08/576,269 04/08/97
5,618,775 08/290,726 04/08/97
5,618,781 07/834,022 04/08/97
5,618,784 08/454,146 04/08/97
5,618,794 08/483,260 04/08/97
5,618,813 08/451,243 04/08/97
5,618,814 08/284,325 04/08/97
5,618,819 08/497,524 04/08/97
5,618,822 08/477,569 04/08/97
5,618,823 08/351,403 04/08/97
5,618,829 08/186,130 04/08/97
5,618,830 08/536,294 04/08/97
5,618,833 08/282,644 04/08/97
5,618,841 08/271,374 04/08/97
5,618,854 08/390,391 04/08/97
5,618,858 08/571,945 04/08/97
5,618,871 08/383,277 04/08/97
5,618,874 08/357,374 04/08/97
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