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 main-
tenance 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 ap-
plicable surcharge.
PATENTS WHICH EXPIRED March 11, 1998
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 34,191 07/756,257 03/09/93
(4,906,340) (07/359,298) (03/06/90)
4,574,404 06/581,919 03/11/86
4,574,419 06/550,491 03/11/86
4,574,436 06/728,518 03/11/86
4,574,447 06/702,805 03/11/86
4,574,449 06/721,273 03/11/86
4,574,460 06/627,824 03/11/86
4,574,462 06/635,629 03/11/86
4,574,466 06/680,109 03/11/86
4,574,474 06/597,761 03/11/86
4,574,483 06/725,091 03/11/86
4,574,494 06/648,543 03/11/86
4,574,496 06/746,007 03/11/86
4,574,499 06/562,617 03/11/86
4,574,500 06/510,748 03/11/86
4,574,525 06/597,086 03/11/86
4,574,531 06/727,943 03/11/86
4,574,538 06/712,358 03/11/86
4,574,543 06/522,399 03/11/86
4,574,561 06/696,653 03/11/86
4,574,569 06/681,823 03/11/86
4,574,572 06/748,741 03/11/86
4,574,573 06/652,068 03/11/86
4,574,574 06/678,214 03/11/86
4,574,575 06/642,167 03/11/86
4,574,576 06/528,118 03/11/86
4,574,588 06/692,623 03/11/86
4,574,590 06/648,580 03/11/86
4,574,599 06/678,837 03/11/86
4,574,604 06/671,275 03/11/86
4,574,610 06/641,702 03/11/86
4,574,612 06/612,398 03/11/86
4,574,615 06/562,558 03/11/86
4,574,618 06/612,333 03/11/86
4,574,619 06/655,061 03/11/86
4,574,633 06/576,235 03/11/86
4,574,635 06/667,925 03/11/86
4,574,636 06/613,828 03/11/86
4,574,642 06/674,437 03/11/86
4,574,645 06/639,274 03/11/86
4,574,651 06/498,857 03/11/86
4,574,652 06/639,283 03/11/86
4,574,656 06/588,557 03/11/86
4,574,660 06/581,970 03/11/86
4,574,666 06/755,217 03/11/86
4,574,668 06/542,183 03/11/86
4,574,673 06/715,513 03/11/86
4,574,674 06/592,864 03/11/86
4,574,682 06/617,052 03/11/86
4,574,687 06/717,541 03/11/86
4,574,696 06/622,986 03/11/86
4,574,697 06/425,666 03/11/86
4,574,700 06/671,395 03/11/86
4,574,701 06/540,506 03/11/86
4,574,707 06/491,602 03/11/86
4,574,713 06/731,484 03/11/86
4,574,716 06/678,072 03/11/86
4,574,724 06/611,202 03/11/86
4,574,727 06/522,028 03/11/86
4,574,729 06/637,782 03/11/86
4,574,736 06/652,795 03/11/86
4,574,737 06/638,455 03/11/86
4,574,745 06/633,218 03/11/86
4,574,748 06/650,072 03/11/86
4,574,754 06/659,679 03/11/86
4,574,755 06/549,751 03/11/86
4,574,762 06/679,013 03/11/86
4,574,766 06/404,291 03/11/86
4,574,768 06/626,670 03/11/86
4,574,770 06/640,796 03/11/86
4,574,774 06/658,662 03/11/86
4,574,776 06/617,530 03/11/86
4,574,785 06/614,940 03/11/86
4,574,813 06/551,628 03/11/86
4,574,820 06/597,486 03/11/86
4,574,821 06/592,070 03/11/86
4,574,828 06/725,907 03/11/86
4,574,843 06/498,273 03/11/86
4,574,853 06/621,627 03/11/86
4,574,858 06/614,316 03/11/86
4,574,866 06/665,012 03/11/86
4,574,873 06/610,431 03/11/86
4,574,878 06/469,549 03/11/86
4,574,887 06/651,962 03/11/86
4,574,892 06/664,126 03/11/86
4,574,894 06/754,474 03/11/86
4,574,898 06/618,276 03/11/86
4,574,900 06/575,972 03/11/86
4,574,905 06/552,067 03/11/86
4,574,906 06/671,590 03/11/86
4,574,910 06/680,868 03/11/86
4,574,915 06/680,575 03/11/86
4,574,918 06/600,804 03/11/86
4,574,923 06/645,929 03/11/86
4,574,927 06/562,950 03/11/86
4,574,936 06/493,322 03/11/86
4,574,946 06/699,932 03/11/86
4,574,950 06/602,590 03/11/86
4,574,952 06/654,674 03/11/86
4,574,962 06/488,590 03/11/86
4,574,964 06/508,975 03/11/86
4,574,966 06/675,603 03/11/86
4,574,967 06/658,826 03/11/86
4,574,984 06/500,821 03/11/86
4,574,987 06/606,032 03/11/86
4,574,989 06/404,544 03/11/86
4,574,994 06/495,046 03/11/86
4,574,996 06/744,183 03/11/86
4,575,000 06/669,977 03/11/86
4,575,013 06/517,022 03/11/86
4,575,016 06/617,283 03/11/86
4,575,017 06/617,307 03/11/86
4,575,019 06/692,213 03/11/86
4,575,025 06/603,690 03/11/86
4,575,033 06/482,115 03/11/86
4,575,036 06/639,018 03/11/86
4,575,052 06/625,635 03/11/86
4,575,065 06/721,069 03/11/86
4,575,074 06/650,273 03/11/86
4,575,077 06/535,353 03/11/86
4,575,084 06/628,629 03/11/86
4,575,097 06/616,489 03/11/86
4,575,101 06/650,318 03/11/86
4,575,105 06/582,726 03/11/86
4,575,106 06/653,104 03/11/86
4,575,117 06/620,295 03/11/86
4,575,118 06/584,901 03/11/86
4,575,120 06/607,286 03/11/86
4,575,125 06/562,684 03/11/86
4,575,135 06/584,254 03/11/86
4,575,160 06/620,466 03/11/86
4,575,165 06/660,348 03/11/86
4,575,166 06/606,087 03/11/86
4,575,176 06/621,276 03/11/86
4,575,181 06/488,704 03/11/86
4,575,185 06/519,152 03/11/86
4,575,190 06/560,050 03/11/86
4,575,195 06/562,500 03/11/86
4,575,199 06/487,990 03/11/86
4,575,214 06/510,553 03/11/86
4,575,216 06/549,873 03/11/86
4,575,223 06/659,548 03/11/86
4,575,261 06/509,484 03/11/86
4,575,282 06/616,815 03/11/86
4,575,286 06/672,741 03/11/86
4,575,299 06/664,299 03/11/86
4,575,304 06/482,730 03/11/86
4,575,307 06/559,268 03/11/86
4,575,311 06/639,824 03/11/86
4,575,321 06/756,659 03/11/86
4,575,323 06/613,224 03/11/86
4,575,329 06/724,823 03/11/86
4,575,331 06/546,680 03/11/86
4,575,358 06/622,801 03/11/86
4,575,366 06/711,462 03/11/86
4,575,368 06/515,900 03/11/86
4,575,385 06/509,843 03/11/86
4,575,403 06/616,377 03/11/86
4,575,413 06/752,414 03/11/86
4,575,430 06/572,073 03/11/86
4,575,432 06/629,085 03/11/86
4,575,436 06/627,256 03/11/86
4,575,440 06/581,927 03/11/86
4,575,442 06/565,142 03/11/86
4,575,446 06/695,095 03/11/86
4,575,447 06/551,512 03/11/86
4,575,448 06/357,237 03/11/86
4,575,455 06/674,206 03/11/86
4,575,467 06/624,882 03/11/86
4,575,472 06/577,764 03/11/86
4,575,473 06/498,501 03/11/86
4,575,477 06/556,250 03/11/86
4,575,479 06/503,385 03/11/86
4,575,483 06/702,694 03/11/86
4,575,492 06/602,509 03/11/86
4,575,493 06/358,576 03/11/86
4,575,494 06/578,256 03/11/86
4,575,509 06/631,965 03/11/86
4,575,512 06/667,200 03/11/86
4,575,518 06/682,221 03/11/86
4,575,520 06/691,813 03/11/86
4,575,523 06/696,296 03/11/86
4,575,524 06/696,297 03/11/86
4,575,527 06/680,636 03/11/86
4,575,529 06/312,566 03/11/86
4,575,530 06/747,253 03/11/86
4,575,531 06/668,606 03/11/86
4,575,532 06/578,111 03/11/86
4,575,537 06/657,427 03/11/86
4,575,538 06/684,407 03/11/86
4,575,540 06/684,765 03/11/86
4,575,542 06/726,554 03/11/86
4,575,545 06/623,760 03/11/86
4,575,546 06/623,759 03/11/86
4,575,551 06/545,270 03/11/86
4,575,553 06/621,399 03/11/86
4,575,554 06/648,118 03/11/86
4,575,556 06/555,850 03/11/86
4,575,564 06/707,277 03/11/86
4,575,568 06/674,262 03/11/86
4,575,575 06/596,984 03/11/86
4,575,590 06/635,299 03/11/86
4,575,593 06/627,815 03/11/86
4,575,598 06/643,618 03/11/86
4,575,599 06/618,409 03/11/86
4,575,609 06/586,611 03/11/86
4,575,610 06/588,299 03/11/86
4,575,611 06/686,560 03/11/86
4,575,614 06/533,529 03/11/86
4,575,620 06/609,216 03/11/86
4,575,628 06/440,273 03/11/86
4,575,629 06/566,843 03/11/86
4,575,630 06/575,353 03/11/86
4,575,633 06/509,617 03/11/86
4,575,634 06/433,276 03/11/86
4,575,643 06/486,926 03/11/86
4,575,644 06/557,690 03/11/86
4,575,647 06/512,071 03/11/86
4,575,649 06/632,365 03/11/86
4,575,652 06/654,728 03/11/86
4,575,687 06/656,209 03/11/86
4,575,691 06/622,415 03/11/86
4,575,694 06/586,468 03/11/86
4,575,697 06/621,838 03/11/86
4,575,701 06/498,776 03/11/86
4,575,703 06/511,927 03/11/86
4,575,725 06/527,139 03/11/86
4,575,729 06/625,418 03/11/86
4,575,738 06/633,159 03/11/86
4,575,741 06/604,183 03/11/86
4,575,752 06/502,951 03/11/86
4,575,753 06/546,320 03/11/86
4,575,762 06/531,107 03/11/86
4,575,763 06/680,883 03/11/86
4,575,766 06/501,884 03/11/86
4,575,770 06/558,368 03/11/86
4,575,775 06/644,244 03/11/86
4,575,776 06/451,582 03/11/86
4,575,778 06/457,905 03/11/86
4,575,791 06/591,429 03/11/86
4,575,794 06/350,683 03/11/86
4,575,799 06/477,935 03/11/86
4,575,801 06/490,020 03/11/86
4,575,802 06/512,828 03/11/86
4,575,803 06/335,841 03/11/86
4,575,804 06/518,947 03/11/86
4,575,807 06/527,099 03/11/86
4,575,808 06/513,913 03/11/86
4,575,810 06/474,409 03/11/86
4,575,817 06/508,394 03/11/86
4,575,828 06/629,147 03/11/86
4,575,829 06/551,782 03/11/86
4,575,831 06/511,814 03/11/86
4,575,832 06/455,835 03/11/86
4,575,834 06/432,971 03/11/86
4,575,836 06/576,823 03/11/86
4,575,838 06/584,599 03/11/86
4,575,842 06/610,148 03/11/86
4,575,843 06/578,252 03/11/86
4,575,848 06/576,061 03/11/86
4,575,864 06/473,104 03/11/86
4,575,866 06/510,523 03/11/86
4,905,332 07/306,487 03/06/90
4,905,334 07/370,504 03/06/90
4,905,340 07/231,226 03/06/90
4,905,348 07/283,291 03/06/90
4,905,348 07/283,291 03/06/90
4,905,353 07/311,169 03/06/90
4,905,354 07/221,705 03/06/90
4,905,358 07/298,544 03/06/90
4,905,360 07/304,714 03/06/90
4,905,361 07/315,000 03/06/90
4,905,362 07/296,622 03/06/90
4,905,369 07/236,727 03/06/90
4,905,374 07/365,807 03/06/90
4,905,377 07/298,935 03/06/90
4,905,383 07/259,528 03/06/90
4,905,384 07/242,770 03/06/90
4,905,386 07/240,162 03/06/90
4,905,387 07/396,033 03/06/90
4,905,390 07/190,110 03/06/90
4,905,395 07/306,698 03/06/90
4,905,396 07/295,976 03/06/90
4,905,397 07/292,905 03/06/90
4,905,399 07/301,908 03/06/90
4,905,400 07/332,472 03/06/90
4,905,406 07/320,580 03/06/90
4,905,416 07/380,589 03/06/90
4,905,418 07/352,127 03/06/90
4,905,420 07/222,885 03/06/90
4,905,426 07/351,488 03/06/90
4,905,429 07/353,678 03/06/90
4,905,433 07/237,443 03/06/90
4,905,439 07/257,138 03/06/90
4,905,441 07/282,750 03/06/90
4,905,443 07/149,461 03/06/90
4,905,446 07/275,972 03/06/90
4,905,447 07/283,448 03/06/90
4,905,462 07/377,650 03/06/90
4,905,473 07/366,544 03/06/90
4,905,474 07/206,095 03/06/90
4,905,475 07/344,057 03/06/90
4,905,479 07/302,428 03/06/90
4,905,480 07/267,127 03/06/90
4,905,485 07/264,593 03/06/90
4,905,487 07/325,155 03/06/90
4,905,493 07/218,150 03/06/90
4,905,494 07/209,341 03/06/90
4,905,498 07/221,471 03/06/90
4,905,501 07/289,234 03/06/90
4,905,503 07/311,615 03/06/90
4,905,509 07/315,680 03/06/90
4,905,510 07/287,309 03/06/90
4,905,511 07/267,125 03/06/90
4,905,515 07/193,743 03/06/90
4,905,520 07/257,104 03/06/90
4,905,521 07/285,548 03/06/90
4,905,524 07/271,751 03/06/90
4,905,541 07/251,614 03/06/90
4,905,551 07/190,026 03/06/90
4,905,553 07/190,084 03/06/90
4,905,561 07/293,691 03/06/90
4,905,567 07/313,910 03/06/90
4,905,568 07/331,520 03/06/90
4,905,576 07/184,397 03/06/90
4,905,578 07/293,097 03/06/90
4,905,585 07/342,728 03/06/90
4,905,587 07/133,632 03/06/90
4,905,588 07/036,414 03/06/90
4,905,592 07/312,510 03/06/90
4,905,593 07/386,565 03/06/90
4,905,613 07/243,081 03/06/90
4,905,614 07/238,522 03/06/90
4,905,616 07/330,786 03/06/90
4,905,617 07/318,350 03/06/90
4,905,619 07/206,652 03/06/90
4,905,621 07/305,181 03/06/90
4,905,627 07/344,889 03/06/90
4,905,630 07/286,539 03/06/90
4,905,631 07/316,158 03/06/90
4,905,635 07/314,714 03/06/90
4,905,638 07/295,481 03/06/90
4,905,656 07/237,812 03/06/90
4,905,657 07/237,813 03/06/90
4,905,659 07/264,897 03/06/90
4,905,661 07/219,742 03/06/90
4,905,662 07/309,107 03/06/90
4,905,664 07/261,258 03/06/90
4,905,669 07/315,214 03/06/90
4,905,691 07/344,073 03/06/90
4,905,681 07/115,370 03/06/90
4,905,689 07/190,053 03/06/90
4,905,691 07/344,073 03/06/90
4,905,702 07/165,596 03/06/90
4,905,709 07/298,058 03/06/90
4,905,712 07/390,834 03/06/90
4,905,724 07/283,374 03/06/90
4,905,725 07/292,316 03/06/90
4,905,733 07/295,578 03/06/90
4,905,738 07/139,651 03/06/90
4,905,741 07/278,222 03/06/90
4,905,750 07/238,552 03/06/90
4,905,760 07/296,226 03/06/90
4,905,762 07/292,386 03/06/90
4,905,766 07/273,756 03/06/90
4,905,769 07/331,454 03/06/90
4,905,774 07/054,862 03/06/90
4,905,781 07/277,765 03/06/90
4,905,796 07/236,966 03/06/90
4,905,806 07/237,333 03/06/90
4,905,810 07/361,654 03/06/90
4,905,819 07/235,589 03/06/90
4,905,824 07/354,445 03/06/90
4,905,826 07/259,515 03/06/90
4,905,829 07/366,467 03/06/90
4,905,833 07/311,519 03/06/90
4,905,839 07/145,123 03/06/90
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4,905,844 07/152,736 03/06/90
4,905,847 07/193,168 03/06/90
4,905,852 07/357,725 03/06/90
4,905,855 07/216,502 03/06/90
4,905,857 07/204,516 03/06/90
4,905,858 07/237,904 03/06/90
4,905,859 07/366,533 03/06/90
4,905,864 07/217,071 03/06/90
4,905,868 07/140,279 03/06/90
4,905,873 07/211,356 03/06/90
4,905,876 07/326,035 03/06/90
4,905,878 07/330,295 03/06/90
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4,905,880 07/143,504 03/06/90
4,905,892 07/378,569 03/06/90
4,905,908 07/258,887 03/06/90
4,905,930 07/110,684 03/06/90
4,905,965 07/384,784 03/06/90
4,905,946 07/308,148 03/06/90
4,905,963 07/264,057 03/06/90
4,905,965 07/384,784 03/06/90
4,905,967 07/003,421 03/06/90
4,905,977 07/192,220 03/06/90
4,905,981 07/321,792 03/06/90
4,905,986 07/219,206 03/06/90
4,905,990 07/320,403 03/06/90
4,905,991 07/245,380 03/06/90
4,905,999 07/094,138 03/06/90
4,906,000 07/349,683 03/06/90
4,906,007 07/279,818 03/06/90
4,906,016 07/311,692 03/06/90
4,906,018 07/231,210 03/06/90
4,906,020 07/321,856 03/06/90
4,906,021 07/172,691 03/06/90
4,906,024 07/197,256 03/06/90
4,906,027 07/309,803 03/06/90
4,906,032 07/254,210 03/06/90
4,906,034 07/210,734 03/06/90
4,906,041 07/309,352 03/06/90
4,906,046 07/315,534 03/06/90
4,906,054 07/051,830 03/06/90
4,906,057 06/550,959 03/06/90
4,906,053 07/321,855 03/06/90
4,906,054 07/051,830 03/06/90
4,906,074 07/250,411 03/06/90
4,906,063 07/150,204 03/06/90
4,906,067 07/322,411 03/06/90
4,906,074 07/250,411 03/06/90
4,906,075 07/196,953 03/06/90
4,906,083 07/197,262 03/06/90
4,906,088 07/207,522 03/06/90
4,906,094 07/185,135 03/06/90
4,906,102 07/333,990 03/06/90
4,906,112 07/251,568 03/06/90
4,906,113 07/224,898 03/06/90
4,906,116 07/324,485 03/06/90
4,906,124 07/158,508 03/06/90
4,906,126 07/309,963 03/06/90
4,906,127 07/246,216 03/06/90
4,906,132 07/272,531 03/06/90
4,906,134 07/114,854 03/06/90
4,906,141 07/180,976 03/06/90
4,906,143 07/191,586 03/06/90
4,906,145 07/037,550 03/06/90
4,906,147 07/256,497 03/06/90
4,906,149 07/278,019 03/06/90
4,906,151 07/321,951 03/06/90
4,906,152 07/207,585 03/06/90
4,906,157 07/313,248 03/06/90
4,906,158 07/233,264 03/06/90
4,906,159 07/327,315 03/06/90
4,906,164 07/358,159 03/06/90
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