Notice of Expiration of Patents
Due to Failure to Pay Maintenance Fees
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 April 30, 1997
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 33,295 07/045,052 08/14/90
(4,513,986) (06/508,880) (04/30/85)
Re. 33,654 07/501,004 08/06/91
(4,823,475) (07/170,832) (04/25/89)
Re. 33,753 07/459,304 11/26/91
(4,824,636) (07/022,204) (04/25/89)
Re. 33,970 07/419,232 06/23/92
(4,824,049) (07/124,721) (04/25/89)
4,513,468 06/520,881 04/30/85
4,513,482 06/603,988 04/30/85
4,513,489 06/482,282 04/30/85
4,513,495 06/534,688 04/30/85
4,513,497 06/655,985 04/30/85
4,513,503 06/468,709 04/30/85
4,513,506 06/522,290 04/30/85
4,513,511 06/407,581 04/30/85
4,513,515 06/468,716 04/30/85
4,513,520 06/469,896 04/30/85
4,513,533 06/445,590 04/30/85
4,513,547 06/416,681 04/30/85
4,513,571 06/418,601 04/30/85
4,513,573 06/530,650 04/30/85
4,513,575 06/554,408 04/30/85
4,513,576 06/560,305 04/30/85
4,513,585 06/224,009 04/30/85
4,513,606 06/407,201 04/30/85
4,513,613 06/502,057 04/30/85
4,513,614 06/498,064 04/30/85
4,513,625 06/509,478 04/30/85
4,513,627 06/501,761 04/30/85
4,513,630 06/395,378 04/30/85
4,513,634 06/409,768 04/30/85
4,513,637 06/382,772 04/30/85
4,513,648 06/502,977 04/30/85
4,513,649 06/498,777 04/30/85
4,513,662 06/542,945 04/30/85
4,513,663 06/554,585 04/30/85
4,513,665 06/501,384 04/30/85
4,513,672 06/517,839 04/30/85
4,513,678 06/514,818 04/30/85
4,513,680 06/440,332 04/30/85
4,513,686 06/530,392 04/30/85
4,513,691 06/555,132 04/30/85
4,513,692 06/605,197 04/30/85
4,513,699 06/468,384 04/30/85
4,513,704 06/557,313 04/30/85
4,513,705 06/557,321 04/30/85
4,513,707 06/487,052 04/30/85
4,513,709 06/442,195 04/30/85
4,513,724 06/358,440 04/30/85
4,513,725 06/297,320 04/30/85
4,513,729 06/444,036 04/30/85
4,513,742 06/418,070 04/30/85
4,513,744 06/441,633 04/30/85
4,513,750 06/582,492 04/30/85
4,513,751 06/474,273 04/30/85
4,513,762 06/534,087 04/30/85
4,513,764 06/498,746 04/30/85
4,513,767 06/469,588 04/30/85
4,513,774 06/480,306 04/30/85
4,513,778 06/518,193 04/30/85
4,513,780 06/578,124 04/30/85
4,513,788 06/555,371 04/30/85
4,513,794 06/423,079 04/30/85
4,513,809 06/455,042 04/30/85
4,513,815 06/542,870 04/30/85
4,513,824 06/553,274 04/30/85
4,513,832 06/491,012 04/30/85
4,513,869 06/611,116 04/30/85
4,513,871 06/615,214 04/30/85
4,513,882 06/396,760 04/30/85
4,513,885 06/427,504 04/30/85
4,513,888 06/428,742 04/30/85
4,513,892 06/485,394 04/30/85
4,513,903 06/444,402 04/30/85
4,513,904 06/518,595 04/30/85
4,513,909 06/651,489 04/30/85
4,513,910 06/651,490 04/30/85
4,513,915 06/447,103 04/30/85
4,513,922 06/534,057 04/30/85
4,513,923 06/547,060 04/30/85
4,513,939 06/540,511 04/30/85
4,513,944 06/632,321 04/30/85
4,513,950 06/494,165 04/30/85
4,513,960 06/542,671 04/30/85
4,514,003 06/301,778 04/30/85
4,514,010 06/487,054 04/30/85
4,514,012 06/516,730 04/30/85
4,514,019 06/285,155 04/30/85
4,514,023 06/552,605 04/30/85
4,514,031 06/387,371 04/30/85
4,514,033 06/544,470 04/30/85
4,514,038 06/345,018 04/30/85
4,514,040 06/468,994 04/30/85
4,514,043 06/350,826 04/30/85
4,514,045 06/436,030 04/30/85
4,514,046 06/562,327 04/30/85
4,514,050 06/400,810 04/30/85
4,514,053 06/520,178 04/30/85
4,514,077 06/467,781 04/30/85
4,514,078 06/482,084 04/30/85
4,514,095 06/549,179 04/30/85
4,514,098 06/413,774 04/30/85
4,514,112 06/598,648 04/30/85
4,514,113 06/517,639 04/30/85
4,514,141 06/482,940 04/30/85
4,514,145 06/332,859 04/30/85
4,514,152 06/516,442 04/30/85
4,514,154 06/601,749 04/30/85
4,514,160 06/569,906 04/30/85
4,514,161 06/559,952 04/30/85
4,514,165 06/550,125 04/30/85
4,514,168 06/523,480 04/30/85
4,514,185 06/387,395 04/30/85
4,514,190 06/571,376 04/30/85
4,514,191 06/424,639 04/30/85
4,514,197 06/467,074 04/30/85
4,514,211 06/489,099 04/30/85
4,514,220 06/604,098 04/30/85
4,514,221 06/467,669 04/30/85
4,514,223 06/603,639 04/30/85
4,514,229 06/599,933 04/30/85
4,514,230 06/573,187 04/30/85
4,514,232 06/449,941 04/30/85
4,514,244 06/588,703 04/30/85
4,514,247 06/523,309 04/30/85
4,514,254 06/536,141 04/30/85
4,514,255 06/524,883 04/30/85
4,514,257 06/357,476 04/30/85
4,514,267 06/606,464 04/30/85
4,514,271 06/496,789 04/30/85
4,514,279 06/555,173 04/30/85
4,514,281 06/591,665 04/30/85
4,514,283 06/574,303 04/30/85
4,514,284 06/643,798 04/30/85
4,514,287 06/454,831 04/30/85
4,514,291 06/495,626 04/30/85
4,514,298 06/576,103 04/30/85
4,514,304 06/537,625 04/30/85
4,514,307 06/517,753 04/30/85
4,514,314 06/565,161 04/30/85
4,514,315 06/508,179 04/30/85
4,514,316 06/559,567 04/30/85
4,514,320 06/588,593 04/30/85
4,514,328 06/485,291 04/30/85
4,514,332 06/600,650 04/30/85
4,514,338 06/461,093 04/30/85
4,514,340 06/531,104 04/30/85
4,514,351 06/411,291 04/30/85
4,514,352 06/535,005 04/30/85
4,514,353 06/509,166 04/30/85
4,514,355 06/452,183 04/30/85
4,514,356 06/483,931 04/30/85
4,514,363 06/302,341 04/30/85
4,514,364 06/518,142 04/30/85
4,514,367 06/497,871 04/30/85
4,514,368 06/422,761 04/30/85
4,514,369 06/582,366 04/30/85
4,514,371 06/511,724 04/30/85
4,514,372 06/404,613 04/30/85
4,514,379 06/508,719 04/30/85
4,514,380 06/569,356 04/30/85
4,514,391 06/515,729 04/30/85
4,514,397 06/543,173 04/30/85
4,514,398 06/478,715 04/30/85
4,514,399 06/486,013 04/30/85
4,514,404 06/552,677 04/30/85
4,514,406 06/466,905 04/30/85
4,514,413 06/482,790 04/30/85
4,514,420 06/479,074 04/30/85
4,514,423 06/576,761 04/30/85
4,514,424 06/468,145 04/30/85
4,514,427 06/496,340 04/30/85
4,514,431 06/604,266 04/30/85
4,514,432 06/479,006 04/30/85
4,514,433 06/544,379 04/30/85
4,514,436 06/518,189 04/30/85
4,514,439 06/533,096 04/30/85
4,514,446 06/273,696 04/30/85
4,514,451 06/514,607 04/30/85
4,514,453 06/490,663 04/30/85
4,514,457 06/467,435 04/30/85
4,514,463 06/592,382 04/30/85
4,514,471 06/594,434 04/30/85
4,514,498 06/381,929 04/30/85
4,514,499 06/464,040 04/30/85
4,514,500 06/442,981 04/30/85
4,514,501 06/348,194 04/30/85
4,514,512 06/480,648 04/30/85
4,514,516 06/528,847 04/30/85
4,514,517 06/518,360 04/30/85
4,514,521 06/456,910 04/30/85
4,514,530 06/510,695 04/30/85
4,514,535 06/575,977 04/30/85
4,514,536 06/575,975 04/30/85
4,514,537 06/578,656 04/30/85
4,514,539 06/491,734 04/30/85
4,514,545 06/570,785 04/30/85
4,514,546 06/577,607 04/30/85
4,514,553 06/576,554 04/30/85
4,514,577 06/434,827 04/30/85
4,514,584 06/448,236 04/30/85
4,514,591 06/584,885 04/30/85
4,514,592 06/398,016 04/30/85
4,514,599 06/582,143 04/30/85
4,514,603 06/581,708 04/30/85
4,514,604 06/631,012 04/30/85
4,514,605 06/522,369 04/30/85
4,514,611 06/398,904 04/30/85
4,514,612 06/473,833 04/30/85
4,514,614 06/409,208 04/30/85
4,514,620 06/535,449 04/30/85
4,514,621 06/542,550 04/30/85
4,514,623 06/456,733 04/30/85
4,514,624 06/408,897 04/30/85
4,514,631 06/454,852 04/30/85
4,514,633 06/552,642 04/30/85
4,514,635 06/437,885 04/30/85
4,514,643 06/609,903 04/30/85
4,514,645 06/467,802 04/30/85
4,514,654 06/589,841 04/30/85
4,514,656 06/428,003 04/30/85
4,514,662 06/235,306 04/30/85
4,514,663 06/489,800 04/30/85
4,514,667 06/488,843 04/30/85
4,514,673 06/564,979 04/30/85
4,514,677 06/504,486 04/30/85
4,514,680 06/461,697 04/30/85
4,514,685 06/287,250 04/30/85
4,514,687 06/396,177 04/30/85
4,514,700 06/459,857 04/30/85
4,514,702 06/455,345 04/30/85
4,514,709 06/518,300 04/30/85
4,514,711 06/636,030 04/30/85
4,514,713 06/450,313 04/30/85
4,514,714 06/466,485 04/30/85
4,514,717 06/555,246 04/30/85
4,514,720 06/375,316 04/30/85
4,514,721 06/509,148 04/30/85
4,514,730 06/451,594 04/30/85
4,514,745 06/635,580 04/30/85
4,514,746 06/445,983 04/30/85
4,514,750 06/338,754 04/30/85
4,514,756 06/468,502 04/30/85
4,514,759 06/425,279 04/30/85
4,514,762 06/471,932 04/30/85
4,514,764 06/472,552 04/30/85
4,514,767 06/452,870 04/30/85
4,514,776 06/376,117 04/30/85
4,514,778 06/433,180 04/30/85
4,514,779 06/502,549 04/30/85
4,514,783 06/466,009 04/30/85
4,514,795 06/495,189 04/30/85
4,514,797 06/414,735 04/30/85
4,514,809 06/373,776 04/30/85
4,514,814 06/415,507 04/30/85
4,514,822 06/315,406 04/30/85
4,514,824 06/355,135 04/30/85
4,514,826 06/364,872 04/30/85
4,514,827 06/483,914 04/30/85
4,514,828 06/340,578 04/30/85
4,514,833 06/419,488 04/30/85
4,514,837 06/455,342 04/30/85
4,514,839 06/479,305 04/30/85
4,514,842 06/548,484 04/30/85
4,514,844 06/506,561 04/30/85
4,514,849 06/529,979 04/30/85
4,514,857 06/541,447 04/30/85
4,823,413 07/168,112 04/25/89
4,823,417 07/108,826 04/25/89
4,823,418 07/214,593 04/25/89
4,823,419 07/232,112 04/25/89
4,823,420 06/937,881 04/25/89
4,823,424 07/095,765 04/25/89
4,823,432 07/152,541 04/25/89
4,823,433 07/145,261 04/25/89
4,823,437 07/170,835 04/25/89
4,823,438 07/151,900 04/25/89
4,823,440 07/090,736 04/25/89
4,823,443 07/063,326 04/25/89
4,823,446 07/165,423 04/25/89
4,823,450 06/924,994 04/25/89
4,823,451 07/166,800 04/25/89
4,823,452 06/576,713 04/25/89
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4,823,482 07/093,579 04/25/89
4,823,492 07/211,764 04/25/89
4,823,498 07/030,219 04/25/89
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4,823,510 07/037,992 04/25/89
4,823,512 06/915,653 04/25/89
4,823,516 07/190,912 04/25/89
4,823,517 07/104,964 04/25/89
4,823,521 07/101,734 04/25/89
4,823,532 06/928,399 04/25/89
4,823,538 07/055,630 04/25/89
4,823,541 06/916,481 04/25/89
4,823,551 06/814,634 04/25/89
4,823,561 07/169,840 04/25/89
4,823,566 07/182,494 04/25/89
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4,823,571 07/235,366 04/25/89
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4,823,581 07/091,348 04/25/89
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4,823,594 07/167,830 04/25/89
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4,823,596 06/933,790 04/25/89
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4,823,601 07/070,763 04/25/89
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4,823,619 06/834,939 04/25/89
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4,824,066 07/203,565 04/25/89
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4,824,083 07/136,291 04/25/89
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4,824,102 07/192,166 04/25/89
4,824,107 06/904,356 04/25/89
4,824,108 07/137,569 04/25/89
4,824,109 06/779,154 04/25/89
4,824,117 07/144,485 04/25/89
4,824,119 07/208,472 04/25/89
4,824,120 07/143,726 04/25/89
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