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 2, 1995
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 32,072 06/471,320 01/28/86
(4,371,723) (06/290,548) (02/01/83)
Re. 32,122 06/611,805 04/22/86
(4,371,708) (06/265,269) (02/01/83)
Re. 33,030 06/827,172 08/22/89
(4,371,495) (06/228,007) (02/01/83)
Re. 33,899 07/288,616 04/28/92
(4,639,314) (06/692,919) (01/27/87)
4,370,761 06/266,167 02/01/83
4,370,776 06/291,101 02/01/83
4,370,789 06/246,068 02/01/83
4,370,791 06/248,555 02/01/83
4,370,792 06/291,411 02/01/83
4,370,797 06/268,209 02/01/83
4,370,798 06/284,846 02/01/83
4,370,815 06/246,309 02/01/83
4,370,818 06/216,690 02/01/83
4,370,832 06/286,230 02/01/83
4,370,835 06/217,827 02/01/83
4,370,837 06/217,097 02/01/83
4,370,846 06/274,905 02/01/83
4,370,852 06/273,079 02/01/83
4,370,882 06/223,582 02/01/83
4,370,886 06/248,162 02/01/83
4,370,887 06/227,866 02/01/83
4,370,893 06/271,637 02/01/83
4,370,894 06/243,966 02/01/83
4,370,925 06/253,756 02/01/83
4,370,941 06/246,645 02/01/83
4,370,946 06/243,962 02/01/83
4,370,951 06/271,090 02/01/83
4,370,991 06/283,638 02/01/83
4,370,999 06/227,100 02/01/83
4,371,006 06/235,824 02/01/83
4,371,024 06/233,136 02/01/83
4,371,025 06/271,963 02/01/83
4,371,032 06/219,022 02/01/83
4,371,043 06/242,428 02/01/83
4,371,053 06/242,935 02/01/83
4,371,065 06/229,008 02/01/63
4,371,070 06/228,545 02/01/83
4,371,095 06/317,456 02/01/83
4,371,130 06/224,674 02/01/83
4,371,134 06/217,662 02/01/83
4,371,172 06/240,125 02/01/83
4,371,173 06/366,299 02/01/83
4,371,178 06/226,898 02/01/83
4,371,179 06/262,805 02/01/83
4,371,183 06/218,808 02/01/83
4,371,186 06/223,144 02/01/83
4,371,197 06/217,181 02/01/83
4,371,209 06/219,193 02/01/83
4,371,219 06/231,017 02/01/83
4,371,244 06/230,015 02/01/63
4,371,250 06/309,501 02/01/83
4,371,251 06/239,100 02/01/83
4,371,253 06/226,306 02/01/83
4,371,258 06/295,101 02/01/83
4,371,260 06/240,969 02/01/83
4,371,266 06/230,310 02/01/83
4,371,298 06/251,314 02/01/83
4,371,303 06/218,147 02/01/83
4,371,304 06/237,362 02/01/83
4,371,306 06/237,441 02/01/83
4,371,336 06/229,560 02/01/83
4,371,340 06/271,270 02/01/83
4,371,352 06/225,025 02/01/83
4,371,366 06/219,005 02/01/83
4,371,370 06/240,393 02/01/63
4,371,383 06/224,028 02/01/83
4,371,384 06/266,867 02/01/83
4,371,391 06/257,585 02/01/83
4,371,400 06/294,657 02/01/83
4,371,413 06/281,166 02/01/83
4,371,414 06/332,182 02/01/83
4,371,425 06/255,231 02/01/83
4,371,429 06/294,112 02/01/83
4,371,431 06/310,310 02/01/83
4,371,432 06/238,125 02/01/83
4,371,434 06/276,404 02/01/83
4,371,436 06/281,000 02/01/83
4,371,441 06/231,090 02/01/83
4,371,451 06/347,568 02/01/83
4,371,452 06/328,822 02/01/83
4,371,453 06/265,502 02/01/83
4,371,464 06/298,521 02/01/83
4,371,470 06/235,577 02/01/83
4,371,472 06/231,113 02/01/83
4,371,478 06/283,471 02/01/83
4,371,491 06/223,926 02/01/83
4,371,498 06/275,419 02/01/83
4,371,501 06/303,256 02/01/83
4,371,503 06/310,415 02/01/83
4,371,506 06/274,865 02/01/83
4,371,509 06/299,678 02/01/83
4,371,511 06/281,754 02/01/83
4,371,512 06/231,361 02/01/83
4,371,513 06/235,876 02/01/83
4,371,526 06/294,944 02/01/83
4,371,529 06/318,906 02/01/83
4,371,542 06/236,634 02/01/83
4,371,543 06/270,775 02/01/83
4,371,551 06/245,804 02/01/83
4,371,562 06/271,158 02/01/83
4,371,564 06/265,221 02/01/83
4,371,575 06/264,300 02/01/83
4,371,582 06/292,068 02/01/83
4,371,587 06/247,571 02/01/83
4,371,596 06/333,537 02/01/83
4,371,607 06/272,050 02/01/83
4,371,618 06/277,008 02/01/83
4,371,621 06/216,301 02/01/83
4,371,626 06/253,787 02/01/83
4,371,636 06/279,548 02/01/83
4,371,639 06/250,990 02/01/83
4,371,641 06/333,127 02/01/83
4,371,646 06/220,405 02/01/83
4,371,647 06/223,051 02/01/83
4,371,651 06/226,582 02/01/83
4,371,652 06/333,128 02/01/83
4,371,655 06/335,937 02/01/83
4,371,661 06/362,188 02/01/83
4,371,670 06/238,297 02/01/83
4,371,672 06/329,158 02/01/83
4,371,687 06/281,198 02/01/83
4,371,688 06/323,142 02/01/83
4,371,690 06/232,566 02/01/83
4,371,695 06/269,847 02/01/83
4,371,696 06/276,242 02/01/83
4,371,701 06/330,154 02/01/83
4,371,702 06/349,305 02/01/83
4,371,707 06/216,045 02/01/83
4,371,712 06/313,798 02/01/83
4,371,713 06/316,287 02/01/83
4,371,719 06/237,237 02/01/83
4,371,724 06/224,199 02/01/83
4,371,730 06/270,697 02/01/83
4,371,738 06/260,170 02/01/83
4,371,739 06/311,816 02/01/83
4,371,740 06/349,351 02/01/83
4,371,743 06/248,578 02/01/83
4,371,763 06/243,911 02/01/83
4,371,764 06/267,747 02/01/83
4,371,801 06/223,962 02/01/83
4,371,829 06/321,159 02/01/83
4,371,845 06/274,004 02/01/83
4,371,850 06/216,028 02/01/83
4,371,851 06/258,094 02/01/83
4,371,855 06/230,166 02/01/83
4,371,858 06/217,772 02/01/83
4,371,878 06/242,575 02/01/83
4,371,885 06/274,994 02/01/83
4,371,907 06/291,745 02/01/83
4,371,917 06/276,384 02/01/83
4,371,918 06/238,940 02/01/83
4,371,920 06/284,997 02/01/83
4,371,940 06/288,453 02/01/83
4,371,952 06/261,316 02/01/83
4,371,979 06/270,147 02/01/83
4,638,509 06/778,642 01/27/87
4,638,511 06/799,145 01/27/87
4,638,512 06/721,887 01/27/87
4,638,515 06/813,228 01/27/87
4,638,519 06/719,874 01/27/87
4,638,526 06/713,031 01/27/87
4,638,530 06/310,044 01/27/87
4,638,531 06/779,776 01/27/87
4,638,537 06/725,494 01/27/87
4,638,541 06/623,380 01/27/87
4,638,545 06/706,713 01/27/87
4,638,554 06/637,330 01/27/87
4,638,562 06/832,793 01/27/87
4,638,566 06/716,663 01/27/87
4,638,569 06/725,493 01/27/87
4,638,571 06/847,208 01/27/87
4,638,577 06/736,099 01/27/87
4,638,581 06/666,201 01/27/87
4,638,582 06/762,950 01/27/87
4,638,584 06/731,548 01/27/87
4,638,585 06/711,260 01/27/87
4,638,587 06/733,601 01/27/87
4,638,588 06/689,136 01/27/87
4,638,595 06/708,540 01/27/87
4,638,597 06/842,560 01/27/87
4,638,598 06/858,711 01/27/87
4,638,599 06/684,591 01/27/87
4,638,600 06/717,293 01/27/87
4,638,602 06/838,943 01/27/87
4,638,604 06/607,978 01/27/87
4,638,607 06/735,432 01/27/87
4,638,609 06/623,715 01/27/87
4,638,616 06/780,654 01/27/87
4,638,621 06/703,144 01/27/87
4,638,622 06/810,129 01/27/87
4,638,624 06/554,406 01/27/67
4,638,625 06/462,023 01/27/87
4,638,626 06/802,457 01/27/87
4,638,629 06/841,670 01/27/87
4,638,634 06/784,133 01/27/87
4,638,644 06/584,499 01/27/87
4,638,652 06/525,442 01/27/87
4,638,657 06/745,761 01/27/87
4,638,661 06/747,065 01/27/87
4,638,664 06/783,249 01/27/87
4,638,665 06/783,734 01/27/87
4,638,666 06/800,511 01/27/87
4,638,669 06/731,715 01/27/67
4,638,673 06/733,302 01/27/87
4,638,674 06/617,634 01/27/87
4,638,677 06/650,401 01/27/87
4,638,679 06/611,458 01/27/87
4,638,682 06/769,960 01/27/87
4,638,689 06/648,450 01/27/87
4,638,692 06/769,958 01/27/87
4,638,694 06/748,976 01/27/87
4,638,696 06/651,263 01/27/87
4,638,703 06/735,919 01/27/87
4,638,710 06/667,622 01/27/87
4,638,716 06/801,222 01/27/87
4,638,717 06/697,345 01/27/87
4,638,719 06/792,833 01/27/87
4,638,725 06/828,789 01/27/87
4,638,728 06/760,988 01/27/87
4,638,733 06/805,409 01/27/87
4,638,734 06/836,235 01/27/87
4,638,742 06/698,932 01/27/87
4,638,744 06/581,614 01/27/87
4,638,746 06/734,664 01/27/87
4,638,751 06/773,198 01/27/87
4,638,763 06/721,672 01/27/87
4,638,764 06/735,755 01/27/87
4,638,766 06/834,954 01/27/87
4,638,769 06/712,501 01/27/87
4,638,770 06/775,588 01/27/87
4,638,773 06/834,791 01/27/87
4,638,776 06/718,843 01/27/87
4,638,779 06/717,070 01/27/87
4,638,780 06/779,895 01/27/87
4,638,781 06/772,639 01/27/87
4,638,791 06/757,740 01/27/87
4,638,792 06/708,159 01/27/87
4,638,795 06/757,093 01/27/87
4,638,807 06/770,150 01/27/87
4,638,808 06/641,464 01/27/87
4,638,809 06/592,091 01/27/87
4,638,811 06/216,189 01/27/87
4,638,816 06/714,774 01/27/87
4,638,820 06/825,563 01/27/87
4,638,822 06/516,052 01/27/87
4,638,825 06/750,026 01/27/87
4,638,828 06/790,065 01/27/87
4,638,829 06/732,055 01/27/87
4,638,837 06/670,686 01/27/87
4,638,838 06/633,920 01/27/87
4,638,859 06/757,040 01/27/87
4,638,861 06/740,072 01/27/87
4,638,862 06/786,393 01/27/87
4,638,863 06/878,147 01/27/87
4,638,864 06/667,669 01/27/87
4,638,865 06/739,478 01/27/87
4,638,873 06/613,360 01/27/87
4,638,879 06/701,606 01/27/87
4,638,885 06/678,774 01/27/87
4,638,888 06/712,766 01/27/87
4,638,890 06/631,434 01/27/87
4,638,896 06/730,059 01/27/87
4,638,902 06/722,779 01/27/87
4,638,904 06/749,401 01/27/87
4,638,905 06/645,669 01/27/87
4,638,910 06/652,868 01/27/87
4,638,911 06/736,476 01/27/87
4,638,914 06/691,931 01/27/87
4,638,919 06/846,275 01/27/87
4,638,922 06/742,019 01/27/87
4,638,924 06/664,234 01/27/87
4,638,927 06/731,875 01/27/87
4,638,929 06/598,767 01/27/87
4,638,931 06/830,204 01/27/87
4,638,933 06/737,790 01/27/87
4,638,935 06/416,859 01/27/87
4,638,938 06/882,215 01/27/87
4,638,940 06/469,001 01/27/87
4,638,943 06/756,455 01/27/87
4,638,949 06/603,662 01/27/87
4,638,953 06/757,825 01/27/87
4,638,955 06/715,902 01/27/87
4,638,957 06/786,571 01/27/87
4,638,958 06/757,474 01/27/87
4,638,964 06/796,198 01/27/87
4,638,967 06/726,401 01/27/87
4,638,969 06/686,138 01/27/87
4,638,979 06/717,689 01/27/87
4,638,980 06/836,095 01/27/87
4,638,992 06/792,733 01/27/87
4,638,993 06/278,273 01/27/87
4,638,995 06/694,950 01/27/87
4,639,001 06/660,181 01/27/87
4,639,002 06/751,742 01/27/87
4,639,009 06/814,832 01/27/87
4,639,011 06/579,376 01/27/87
4,639,012 06/851,611 01/27/87
4,639,018 06/753,429 01/27/87
4,639,022 06/677,608 01/27/87
4,639,023 06/739,102 01/27/87
4,639,024 06/557,907 01/27/87
4,639,029 06/764,125 01/27/87
4,639,037 06/610,713 01/27/87
4,639,040 06/799,606 01/27/87
4,639,041 06/747,442 01/27/87
4,639,042 06/736,457 01/27/87
4,639,060 06/605,513 01/27/87
4,639,065 06/711,603 01/27/87
4,639,073 06/590,922 01/27/87
4,639,075 06/497,443 01/27/87
4,639,078 06/658,330 01/27/87
4,639,082 06/716,890 01/27/87
4,639,086 06/816,994 01/27/87
4,639,090 06/736,816 01/27/87
4,639,094 06/536,371 01/27/87
4,639,104 06/736,688 01/27/87
4,639,112 06/632,405 01/27/87
4,639,116 06/718,946 01/27/87
4,639,117 06/439,211 01/27/87
4,639,127 06/807,417 01/27/87
4,639,129 06/676,887 01/27/87
4,639,130 06/749,422 01/27/87
4,639,131 06/774,422 01/27/87
4,639,133 06/731,043 01/27/87
4,639,137 06/691,597 01/27/87
4,639,139 06/781,261 01/27/87
4,639,140 06/705,734 01/27/87
4,639,147 06/639,802 01/27/87
4,639,149 06/751,288 01/27/87
4,639,152 06/681,584 01/27/87
4,639,153 06/628,762 01/27/87
4,639,154 06/742,331 01/27/87
4,639,155 06/767,275 01/27/87
4,639,158 06/627,295 01/27/87
4,639,159 06/584,837 01/27/87
4,639,167 06/726,635 01/27/87
4,639,168 06/576,384 01/27/87
4,639,169 06/696,559 01/27/87
4,639,171 06/706,497 01/27/87
4,639,179 06/618,363 01/27/87
4,639,180 06/734,043 01/27/87
4,639,183 06/716,582 01/27/87
4,639,187 06/630,951 01/27/87
4,639,188 06/677,874 01/27/87
4,639,189 06/584,039 01/27/87
4,639,191 06/705,230 01/27/87
4,639,193 06/782,399 01/27/87
4,639,195 06/687,524 01/27/87
4,639,196 06/828,673 01/27/87
4,639,199 06/824,308 01/27/87
4,639,202 06/698,906 01/27/87
4,639,217 06/691,494 01/27/87
4,639,220 06/555,976 01/27/87
4,639,222 06/521,718 01/27/87
4,639,226 06/754,950 01/27/87
4,639,228 06/685,563 01/27/87
4,639,235 06/709,674 01/27/87
4,639,236 06/699,591 01/27/87
4,639,241 06/792,307 01/27/87
4,639,246 06/773,569 01/27/87
4,639,251 06/749,707 01/27/87
4,639,260 06/798,956 01/27/87
4,639,264 06/641,091 01/27/87
4,639,265 06/764,617 01/27/87
4,639,267 06/774,526 01/27/87
4,639,273 06/522,751 01/27/87
4,639,281 06/557,597 01/27/87
4,639,283 06/676,280 01/27/87
4,639,291 06/662,483 01/27/87
4,639,292 06/662,481 01/27/87
4,639,293 06/492,445 01/27/87
4,639,295 06/765,624 01/27/87
4,639,303 06/790,825 01/27/87
4,639,304 06/794,103 01/27/87
4,639,307 06/646,397 01/27/87
4,639,309 06/777,300 01/27/87
4,639,313 06/752,465 01/27/87
4,639,316 06/681,771 01/27/87
4,639,319 06/757,597 01/27/87
4,639,320 06/831,056 01/27/87
4,639,322 06/644,593 01/27/87
4,639,325 06/829,678 01/27/87
4,639,328 06/674,891 01/27/87
4,639,335 06/818,145 01/27/87
4,639,344 06/617,632 01/27/87
4,639,346 06/726,068 01/27/87
4,639,349 06/634,659 01/27/87
4,639,350 06/541,745 01/27/87
4,639,353 06/726,391 01/27/87
4,639,355 06/757,591 01/27/87
4,639,366 06/618,002 01/27/87
4,639,381 06/746,378 01/27/87
4,639,382 06/436,535 01/27/87
4,639,383 06/854,735 01/27/87
4,639,385 06/781,544 01/27/87
4,639,388 06/701,022 01/27/87
4,639,394 06/718,756 01/27/87
4,639,396 06/632,466 01/27/87
4,639,402 06/761,931 01/27/87
4,639,403 06/752,095 01/27/87
4,639,405 06/781,363 01/27/87
4,639,411 06/839,014 01/27/87
4,639,419 06/653,384 01/27/87
4,639,423 06/667,361 01/27/87
4,639,427 06/750,714 01/27/87
4,639,428 06/638,319 01/27/87
4,639,429 06/756,457 01/27/87
4,639,433 06/765,430 01/27/87
4,639,435 06/625,231 01/27/87
4,639,437 06/599,340 01/27/87
4,639,439 06/786,328 01/27/87
4,639,441 06/582,152 01/27/87
4,639,444 06/800,025 01/27/87
4,639,445 06/791,594 01/27/87
4,639,447 06/741,112 01/27/87
4,639,451 06/504,039 01/27/87
4,639,452 06/469,968 01/27/87
4,639,456 06/446,708 01/27/87
4,639,457 06/766,472 01/27/87
4,639,460 06/845,160 01/27/87
4,639,462 06/547,807 01/27/87
4,639,463 06/563,780 01/27/87
4,639,466 06/656,554 01/27/87
4,639,467 06/722,207 01/27/87
4,639,469 06/429,445 01/27/87
4,639,472 06/753,089 01/27/87
4,639,474 06/560,043 01/27/87
4,639,477 06/745,033 01/27/87
4,639,488 06/795,128 01/27/87
4,639,492 06/764,028 01/27/87
4,639,493 06/679,977 01/27/87
4,639,500 06/635,269 01/27/87
4,639,502 06/730,134 01/27/87
4,639,503 06/798,426 01/27/87
4,639,505 06/763,106 01/27/87
4,639,508 06/605,209 01/27/87
4,639,513 06/656,922 01/27/87
4,639,514 06/779,702 01/27/87
4,639,515 06/779,798 01/27/87
4,639,519 06/729,448 01/27/87
4,639,522 06/829,179 01/27/87
4,639,525 06/671,308 01/27/87
4,639,528 06/703,778 01/27/87
4,639,530 06/749,556 01/27/87
4,639,531 06/762,752 01/27/87
4,639,535 06/792,851 01/27/87
4,639,536 06/645,714 01/27/87
4,639,539 06/804,013 01/27/87
4,639,540 06/706,540 01/27/87
4,639,541 06/727,027 01/27/87
4,639,547 06/783,292 01/27/87
4,639,548 06/718,725 01/27/87
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