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 FEBRUARY 22, 1995
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 31,954 06/593,070 07/23/85
(4,374,822) (06/327,668) (02/22/83)
Re. 32,759 07/023,586 10/04/88
(4,643,936) (06/829,638) (02/17/87)
4,374,439 06/222,655 02/22/83
4,374,442 06/287,347 02/22/83
4,374,444 06/241,592 02/22/83
4,374,445 06/237,581 02/22/83
4,374,458 06/222,941 02/22/83
4,374,465 06/344,910 02/22/83
4,374,468 06/242,193 02/22/83
4,374,496 06/221,709 02/22/83
4,374,510 06/249,458 02/22/83
4,374,511 06/219,108 02/22/83
4,374,514 06/360,076 02/22/83
4,374,516 06/236,849 02/22/83
4,374,528 06/282,332 02/22/83
4,374,569 06/288,109 02/22/83
4,374,571 06/236,311 02/22/83
4,374,576 06/230,634 02/22/83
4,374,579 06/217,165 02/22/83
4,374,609 06/265,938 02/22/83
4,374,613 06/270,238 02/22/83
4,374,616 06/276,627 02/22/83
4,374,621 06/315,970 02/22/83
4,374,643 06/284,532 02/22/83
4,374,648 06/291,691 02/22/83
4,374,654 06/289,172 02/22/83
4,374,658 06/323,085 02/22/83
4,374,660 06/293,913 02/22/83
4,374,663 06/224,882 02/22/83
4,374,666 06/244,379 02/22/83
4,374,667 06/311,339 02/22/83
4,374,678 06/269,292 02/22/83
4,374,680 06/246,260 02/22/83
4,374,684 06/226,291 02/22/83
4,374,688 06/244,635 02/22/83
4,374,692 06/240,454 02/22/83
4,374,696 06/246,111 02/22/83
4,374,697 06/217,217 02/22/83
4,374,699 06/281,759 02/22/83
4,374,705 06/232,307 02/21/83
4,374,716 06/290,460 02/22/83
4,374,720 06/295,161 02/22/83
4,374,729 06/228,543 02/22/83
4,374,730 06/215,758 02/22/83
4,374,733 06/249,774 02/22/83
4,374,737 06/285,431 02/22/83
4,374,745 06/292,752 02/22/83
4,374,752 06/279,158 02/22/83
4,374,766 06/383,404 02/22/83
4,374,768 06/254,705 02/22/83
4,374,769 06/274,599 02/22/83
4,374,773 06/225,747 02/22/83
4,374,789 06/300,224 02/22/83
4,374,802 06/302,550 02/22/83
4,374,819 06/218,845 02/22/83
4,374,824 06/228,791 02/22/83
4,374,826 06/282,109 02/22/83
4,374,831 06/334,939 02/22/83
4,374,832 06/334,940 02/22/83
4,374,833 06/286,508 02/22/83
4,374,834 06/247,743 02/22/83
4,374,835 06/224,710 02/22/83
4,374,837 06/288,847 02/22/83
4,374,842 06/250,299 02/22/83
4,374,843 06/293,574 02/22/83
4,374,844 06/316,627 02/22/83
4,374,845 06/313,847 02/22/83
4,374,858 06/239,937 02/22/83
4,374,871 06/268,549 02/22/83
4,374,874 06/271,437 02/22/83
4,374,881 06/247,027 02/22/83
4,374,882 06/332,276 02/22/83
4,374,891 06/239,755 02/22/83
4,374,895 06/277,210 02/22/83
4,374,897 06/240,436 02/22/83
4,374,901 06/333,197 02/22/83
4,374,902 06/233,569 02/22/83
4,374,906 06/306,835 02/22/83
4,374,918 06/302,504 02/22/83
4,374,920 06/287,465 02/22/83
4,374,924 06/351,812 02/22/83
4,374,928 06/269,150 02/22/83
4,374,929 06/317,372 02/22/83
4,374,930 06/312,474 02/22/83
4,374,936 06/263,724 02/22/83
4,374,937 06/279,319 02/22/83
4,374,940 06/274,106 02/22/83
4,374,948 06/266,778 02/22/83
4,374,951 06/301,333 02/22/83
4,374,970 06/281,202 02/22/83
4,374,972 06/296,390 02/22/83
4,374,976 06/293,874 02/22/83
4,374,980 06/357,970 02/22/83
4,374,981 06/323,705 02/22/83
4,374,983 06/240,104 02/22/83
4,374,986 06/289,667 02/22/83
4,374,988 06/318,611 02/22/83
4,374,991 06/221,091 02/22/83
4,374,992 06/286,830 02/22/83
4,374,993 06/271,323 02/22/83
4,374,999 06/222,184 02/22/83
4,375,007 06/320,590 02/22/83
4,375,010 06/215,691 02/22/83
4,375,011 06/241,371 02/22/83
4,375,020 06/273,456 02/22/83
4,375,030 06/259,708 02/22/83
4,375,041 06/347,270 02/22/83
4,375,046 06/244,369 02/22/83
4,375,047 06/286,298 02/22/83
4,375,053 06/220,227 02/22/83
4,375,055 06/245,173 02/22/83
4,375,078 06/247,962 02/22/83
4,642,814 06/793,777 02/17/87
4,642,815 06/824,792 02/17/87
4,642,820 06/777,932 02/17/87
4,642,822 06/654,947 02/17/87
4,642,824 06/781,260 02/17/87
4,642,825 06/752,564 02/17/87
4,642,828 06/747,167 02/17/87
4,642,835 06/778,974 02/17/87
4,642,836 06/652,863 02/17/87
4,642,840 06/779,364 02/17/87
4,642,847 06/785,510 02/17/87
4,642,848 06/771,399 02/17/87
4,642,850 06/681,667 02/17/87
4,642,851 06/867,457 02/17/87
4,642,852 06/744,271 02/17/87
4,642,853 06/846,279 02/17/87
4,642,854 06/714,843 02/17/87
4,642,856 06/361,521 02/17/87
4,642,858 06/787,141 02/17/87
4,642,861 06/785,603 02/17/87
4,642,864 06/811,258 02/17/87
4,642,866 06/737,107 02/17/87
4,642,868 06/713,958 02/17/87
4,642,871 06/738,790 02/17/87
4,642,873 06/547,532 02/17/87
4,642,882 06/767,905 02/17/87
4,642,885 06/758,627 02/17/87
4,642,887 06/768,592 02/17/87
4,642,891 06/722,702 02/17/87
4,642,892 06/678,438 02/17/87
4,642,895 06/794,826 02/17/87
4,642,901 06/753,521 02/17/87
4,642,902 06/738,475 02/17/87
4,642,906 06/765,209 02/17/87
4,642,908 06/727,886 02/17/87
4,642,918 06/783,449 02/17/87
4,642,919 06/707,146 02/17/87
4,642,921 06/706,882 02/17/87
4,642,923 06/743,285 02/17/87
4,642,931 06/857,994 02/17/87
4,642,932 06/788,480 02/17/87
4,642,934 06/722,469 02/17/87
4,642,936 06/731,726 02/17/87
4,642,937 06/651,563 02/17/87
4,642,938 06/765,448 02/17/87
4,642,945 06/752,259 02/17/87
4,642,950 06/247,287 02/17/87
4,642,952 06/700,266 02/17/87
4,642,953 06/827,818 02/17/87
4,642,954 06/751,002 02/17/87
4,642,955 06/845,846 02/17/87
4,642,957 06/839,868 02/17/87
4,642,962 06/754,128 02/17/87
4,642,971 06/712,548 02/17/87
4,642,972 06/687,445 02/17/87
4,642,979 06/792,882 02/17/87
4,642,982 06/758,968 02/17/87
4,642,985 06/744,691 02/17/87
4,642,987 06/579,809 02/17/87
4,642,989 06/613,604 02/17/87
4,642,992 06/826,670 02/17/87
4,643,000 06/797,797 02/17/87
4,643,003 06/775,559 02/17/87
4,643,004 06/839,591 02/17/87
4,643,005 06/699,847 02/17/87
4,643,014 06/786,684 02/17/87
4,643,015 06/778,802 02/17/87
4,643,018 06/677,566 02/17/87
4,643,021 06/790,186 02/17/87
4,643,022 06/617,803 02/17/87
4,643,027 06/748,771 02/17/87
4,643,035 06/732,591 02/17/87
4,643,036 06/734,196 02/17/87
4,643,040 06/763,351 02/17/87
4,643,044 06/721,449 02/17/87
4,643,051 06/806,253 02/17/87
4,643,056 06/817,218 02/17/87
4,643,059 06/759,048 02/17/87
4,643,060 06/825,447 02/17/87
4,643,063 06/761,752 02/17/87
4,643,069 06/761,448 02/17/87
4,643,071 06/749,002 02/17/87
4,643,072 06/740,674 02/17/87
4,643,075 06/703,375 02/17/87
4,643,077 06/770,648 02/17/87
4,643,081 06/812,234 02/17/87
4,643,082 06/642,195 02/17/87
4,643,083 06/746,075 02/17/87
4,643,084 06/853,042 02/17/87
4,643,098 06/662,023 02/17/87
4,643,103 06/715,673 02/17/87
4,643,104 06/786,041 02/17/87
4,643,106 06/660,148 02/17/87
4,643,110 06/882,762 02/17/87
4,643,113 06/702,038 02/17/87
4,643,114 06/742,119 02/17/87
4,643,115 06/847,160 02/17/87
4,643,117 06/797,818 02/17/87
4,643,120 06/788,304 02/17/87
4,643,121 06/731,837 02/17/87
4,643,122 06/633,554 02/17/87
4,643,124 06/733,387 02/17/87
4,643,127 06/657,228 02/17/87
4,643,128 06/739,568 02/17/87
4,643,130 06/576,508 02/17/87
4,643,133 06/711,673 02/17/87
4,643,134 06/743,133 02/17/87
4,643,135 06/785,951 02/17/87
4,643,142 06/824,194 02/17/87
4,643,145 06/679,308 02/17/87
4,643,148 06/776,691 02/17/87
4,643,151 06/813,720 02/17/87
4,643,154 06/769,467 02/17/87
4,643,155 06/658,264 02/17/87
4,643,163 06/809,426 02/17/87
4,643,166 06/681,160 02/17/87
4,643,168 06/718,059 02/17/87
4,643,170 06/802,377 02/17/87
4,643,172 06/789,417 02/17/87
4,643,173 06/696,256 02/17/87
4,643,177 06/620,024 02/17/87
4,643,178 06/603,228 02/17/87
4,643,183 06/716,482 02/17/87
4,643,186 06/792,852 02/17/87
4,643,195 06/648,480 02/17/87
4,643,198 06/578,701 02/17/87
4,643,199 06/834,573 02/17/87
4,643,200 06/844,889 02/17/87
4,643,204 06/542,265 02/17/87
4,643,205 06/576,305 02/17/87
4,643,210 06/764,634 02/17/87
4,643,212 06/594,324 02/17/87
4,643,214 06/700,447 02/17/87
4,643,217 06/737,521 02/17/87
4,643,219 06/513,987 02/17/87
4,643,222 06/724,347 02/17/87
4,643,223 06/829,255 02/17/87
4,643,227 06/788,723 02/17/87
4,643,230 06/724,770 02/17/87
4,643,232 06/808,649 02/17/81
4,643,234 06/775,806 02/17/87
4,643,235 06/802,861 02/17/87
4,643,236 06/805,718 02/17/87
4,643,241 06/757,876 02/17/87
4,643,242 06/802,837 02/17/87
4,643,243 06/762,540 02/17/87
4,643,246 06/753,585 02/17/87
4,643,248 06/829,706 02/17/87
4,643,250 06/882,417 02/17/87
4,643,251 06/695,798 02/17/87
4,643,258 06/732,850 02/17/87
4,643,259 06/657,623 02/17/87
4,643,260 06/781,919 02/17/87
4,643,263 06/651,620 02/17/87
4,643,264 06/668,920 02/17/87
4,643,265 06/707,895 02/17/87
4,643,266 06/764,477 02/17/87
4,643,268 06/640,319 02/17/87
4,643,275 06/819,391 02/17/87
4,643,279 06/730,733 02/17/87
4,643,281 06/830,341 02/17/87
4,643,287 06/749,910 02/17/87
4,643,290 06/804,388 02/17/87
4,643,291 06/820,855 02/17/87
4,643,292 06/730,466 02/17/87
4,643,294 06/733,070 02/17/87
4,643,302 06/712,168 02/17/87
4,643,304 06/669,844 02/17/87
4,643,311 06/713,314 02/17/87
4,643,312 06/727,401 02/17/87
4,643,314 06/866,801 02/17/87
4,643,316 06/679,396 02/17/87
4,643,320 06/678,718 02/17/87
4,643,322 06/771,497 02/17/87
4,643,328 06/799,867 02/17/87
4,643,333 06/850,698 02/17/87
4,643,334 06/689,376 02/17/87
4,643,337 06/665,038 02/17/81
4,643,340 06/800,047 02/17/87
4,643,341 06/872,265 02/17/87
4,643,353 06/702,667 02/17/87
4,643,357 06/800,781 02/17/87
4,643,359 06/713,369 02/17/87
4,643,367 06/733,671 02/17/87
4,643,373 06/686,047 02/17/87
4,643,375 06/748,925 02/17/87
4,643,376 06/695,759 02/17/87
4,643,379 06/791,809 02/17/87
4,643,380 06/822,483 02/17/87
4,643,384 06/815,938 02/17/87
4,643,386 06/672,071 02/17/87
4,643,387 06/630,070 02/17/87
4,643,388 06/354,123 02/17/87
4,643,390 06/738,921 02/17/87
4,643,391 06/723,068 02/17/87
4,643,392 06/691,064 02/17/87
4,643,396 06/803,057 02/17/87
4,643,399 06/733,717 02/17/87
4,643,401 06/770,074 02/17/87
4,643,403 06/697,905 02/17/87
4,643,405 06/783,323 02/17/87
4,643,410 06/724,181 02/17/87
4,643,418 06/708,004 02/17/87
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4,643,420 06/689,131 02/17/87
4,643,423 06/666,689 02/17/87
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4,643,451 06/729,478 02/17/87
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4,643,507 06/726,873 02/17/87
4,643,509 06/728,924 02/17/87
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4,643,514 06/518,440 02/17/87
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4,643,524 06/579,840 02/17/87
4,643,525 06/686,066 02/17/87
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4,643,537 06/617,424 02/17/87
4,643,539 06/666,638 02/17/87
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4,643,548 06/751,596 02/17/87
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4,643,569 06/746,177 02/17/87
4,643,577 06/628,238 02/17/87
4,643,581 06/655,556 02/17/87
4,643,583 06/687,229 02/17/87
4,643,590 06/712,273 02/17/87
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4,643,594 06/808,931 02/17/87
4,643,598 06/764,464 02/17/87
4,643,600 06/834,962 02/17/87
4,643,601 06/655,496 02/17/87
4,643,603 06/719,245 02/17/87
4,643,604 06/734,727 02/17/87
4,643,611 06/721,077 02/17/87
4,643,612 06/682,725 02/17/87
4,643,615 06/773,108 02/17/87
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4,643,661 06/668,901 02/17/87
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4,643,791 06/813,970 02/17/87
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4,643,807 06/808,777 02/17/87
4,643,814 06/722,968 02/17/87
4,643,815 06/676,882 02/17/87
4,643,817 06/742,476 02/17/87
4,643,820 06/832,196 02/17/87
4,643,822 06/706,487 02/17/87
4,643,827 06/752,375 02/17/87
4,643,830 06/621,740 02/17/87
4,643,832 06/660,942 02/17/87
4,643,839 06/600,933 02/17/87
4,643,847 06/797,081 02/17/87
4,643,850 06/682,777 02/17/87
4,643,852 06/814,657 02/17/87
4,643,854 06/640,928 02/17/87
4,643,860 06/865,656 02/17/87
4,643,861 06/751,201 02/17/87
4,643,862 06/755,691 02/17/87
4,643,863 06/695,831 02/17/87
4,643,864 06/695,830 02/17/87
4,643,866 06/526,172 02/17/87
4,643,870 06/800,566 02/17/87
4,643,872 06/591,569 02/17/87
4,643,878 06/662,639 02/17/87
4,643,881 06/680,626 02/17/87
4,643,882 06/586,288 02/17/87
4,643,885 06/713,461 02/17/87
4,643,889 06/846,254 02/17/87
4,643,891 06/542,171 02/17/87
4,643,896 06/618,380 02/17/87
4,643,901 06/503,323 02/17/87
4,643,905 06/608,887 02/17/87
4,643,914 06/763,124 02/17/87
4,643,918 06/729,850 02/17/87
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