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 15, 1995
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 31,874 06/547,887 04/30/85
(4,374,224) (06/301,513) (02/15/83)
Re. 33,404 07/303,631 10/23/90
(4,642,629) (06/596,858) (02/10/87)
Re. 33,675 07/307,790 08/27/91
(4,641,720) (06/709,766) (02/10/87)
Re. 34,169 07/442,145 01/26/93
(4,642,682) (06/604,845) (02/10/87)
4,373,219 06/259,417 02/15/83
4,373,240 06/299,610 02/15/83
4,373,251 06/294,268 02/15/83
4,373,268 06/328,750 02/15/83
4,373,282 06/268,512 02/15/83
4,373,298 06/229,911 02/15/83
4,373,314 06/329,243 02/15/83
4,373,333 06/296,884 02/15/83
4,373,338 06/222,226 02/15/83
4,373,341 06/217,702 02/15/83
4,373,347 06/250,319 02/15/83
4,373,350 06/282,352 02/15/83
4,373,354 06/306,024 02/15/83
4,373,356 06/287,412 02/15/83
4,373,368 06/278,783 02/15/83
4,373,371 06/220,348 02/15/83
4,373,375 06/218,495 02/15/83
4,373,381 06/229,337 02/15/83
4,373,385 06/236,555 02/15/83
4,373,391 06/257,081 02/15/83
4,373,397 06/229,880 02/15/83
4,373,399 06/231,890 02/15/83
4,373,441 06/227,072 02/15/83
4,373,451 06/251,498 02/15/83
4,373,454 06/297,307 02/15/83
4,373,470 06/232,842 02/15/83
4,373,472 06/247,668 02/15/83
4,373,474 06/221,196 02/15/83
4,373,483 06/239,237 02/15/83
4,373,485 06/265,405 02/15/83
4,373,487 06/249,459 02/15/83
4,373,490 06/225,111 02/15/83
4,373,491 06/265,758 02/15/83
4,373,496 06/206,594 02/15/83
4,373,501 06/303,273 02/15/83
4,373,504 06/219,413 02/15/83
4,373,526 06/253,925 02/15/83
4,373,528 06/245,011 02/15/83
4,373,537 06/297,693 02/15/83
4,373,545 06/228,229 02/15/83
4,373,547 06/220,661 02/15/83
4,373,555 06/326,548 02/15/83
4,373,556 06/326,549 02/15/83
4,373,580 06/243,034 02/15/83
4,373,581 06/226,308 02/15/83
4,373,582 06/218,602 02/15/83
4,373,583 06/337,098 02/15/83
4,373,585 06/285,696 02/15/83
4,373,586 06/290,758 02/15/83
4,373,591 06/252,850 02/15/83
4,373,596 06/292,904 02/15/83
4,373,599 06/240,214 02/15/83
4,373,603 06/240,698 02/15/83
4,373,610 06/264,167 02/15/83
4,373,616 06/228,186 02/15/83
4,373,624 06/245,160 02/15/83
4,373,632 06/236,288 02/15/83
4,373,633 06/301,454 02/15/83
4,373,636 06/235,754 02/15/83
4,373,637 06/325,579 02/15/83
4,373,643 06/288,348 02/15/83
4,373,650 06/223,563 02/15/83
4,373,659 06/239,897 02/15/83
4,373,663 06/329,147 02/15/83
4,373,697 06/275,074 02/15/83
4,373,700 06/238,250 02/15/83
4,373,703 06/349,050 02/15/83
4,373,729 06/224,466 02/15/83
4,373,758 06/294,759 02/15/83
4,373,760 06/240,415 02/15/83
4,373,763 06/262,197 02/15/83
4,373,765 06/268,072 02/15/83
4,373,815 06/222,806 02/15/83
4,373,819 06/219,390 02/15/83
4,373,820 06/244,716 02/15/83
4,373,827 06/274,871 02/15/83
4,373,836 06/233,349 02/15/83
4,373,860 06/219,889 02/15/83
4,373,883 06/236,202 02/15/83
4,373,884 06/320,293 02/15/83
4,373,887 06/239,556 02/15/83
4,373,896 06/250,834 02/15/83
4,373,898 06/243,271 02/15/83
4,373,908 06/323,896 02/15/83
4,373,909 06/323,897 02/15/83
4,373,916 06/229,602 02/15/83
4,373,935 06/259,377 02/15/83
4,373,938 06/301,292 02/15/83
4,373,942 06/232,747 02/15/83
4,373,949 06/295,122 02/15/83
4,373,952 06/313,002 02/15/83
4,373,959 06/276,437 02/15/83
4,373,961 06/310,837 02/15/83
4,373,973 06/321,515 02/15/83
4,373,974 06/250,209 02/15/83
4,373,978 06/264,832 02/15/83
4,373,986 06/253,460 02/15/83
4,373,996 06/240,597 02/15/83
4,373,999 06/363,550 02/15/83
4,374,000 06/230,617 02/15/83
4,374,003 06/279,890 02/15/83
4,374,006 06/249,985 02/15/83
4,374,021 06/225,927 02/15/83
4,374,023 06/315,317 02/15/83
4,374,026 06/255,204 02/15/83
4,374,029 06/260,422 02/15/83
4,374,038 06/232,022 02/15/83
4,374,042 06/257,041 02/15/83
4,374,044 06/226,162 02/15/83
4,374,056 06/317,225 02/15/83
4,374,060 06/283,404 02/15/83
4,374,061 06/287,139 02/15/83
4,374,067 06/333,965 02/15/83
4,374,068 06/311,661 02/15/83
4,374,076 06/310,170 02/15/83
4,374,087 06/274,459 02/15/83
4,374,088 06/314,831 02/15/83
4,374,090 06/280,438 02/15/83
4,374,100 06/393,987 02/15/83
4,374,109 06/331,945 02/15/83
4,374,122 06/248,088 02/15/83
4,374,133 06/331,303 02/15/83
4,374,137 06/290,987 02/15/83
4,374,139 06/319,482 02/15/83
4,374,141 06/293,248 02/15/83
4,374,143 06/264,460 02/15/83
4,374,146 06/323,803 02/15/83
4,374,148 06/282,762 02/15/83
4,374,163 06/307,139 02/15/83
4,374,170 06/319,535 02/15/83
4,374,176 06/305,419 02/15/83
4,374,184 06/306,810 02/15/83
4,374,185 06/263,660 02/15/83
4,374,186 06/258,838 02/15/83
4,374,188 06/276,383 02/15/83
4,374,192 06/352,352 02/15/83
4,374,193 06/258,771 02/15/83
4,374,197 06/300,324 02/15/83
4,374,206 06/237,018 02/15/83
4,374,208 06/324,418 02/15/83
4,374,216 06/328,977 02/15/83
4,374,217 06/335,550 02/15/83
4,374,227 06/263,887 02/15/83
4,374,235 06/234,750 02/15/83
4,374,239 06/293,930 02/15/83
4,374,243 06/305,843 02/15/83
4,374,249 06/219,766 02/15/83
4,374,258 06/343,762 02/15/83
4,374,265 06/288,830 02/15/83
4,374,266 06/220,672 02/15/83
4,374,267 06/220,674 02/15/83
4,374,269 06/322,497 02/15/83
4,374,270 06/328,289 02/15/83
4,374,273 06/258,387 02/15/83
4,374,275 06/315,834 02/15/83
4,374,279 06/325,338 02/15/83
4,374,280 06/324,144 02/15/83
4,374,284 06/248,222 02/15/83
4,374,285 06/223,514 02/15/83
4,374,286 06/352,839 02/15/83
4,374,287 06/237,561 02/15/83
4,374,291 06/318,716 02/15/83
4,374,292 06/345,430 02/15/83
4,374,302 06/216,000 02/15/83
4,374,303 06/248,128 02/15/83
4,374,320 06/264,470 02/15/83
4,374,329 06/257,095 02/15/83
4,374,331 06/227,562 02/15/83
4,374,347 06/241,059 02/15/83
4,374,349 06/294,797 02/15/83
4,374,358 06/222,663 02/15/83
4,374,361 06/220,933 02/15/83
4,374,368 06/220,226 02/15/83
4,374,372 06/269,312 02/15/83
4,374,375 06/253,621 02/15/83
4,374,376 06/280,458 02/15/83
4,374,381 06/259,614 02/15/83
4,374,387 06/270,722 02/15/83
4,374,399 06/292,453 02/15/83
4,374,407 06/219,540 02/15/83
4,374,417 06/231,639 02/15/83
4,374,435 06/219,740 02/15/83
4,374,437 06/220,619 02/15/83
4,641,379 06/855,553 02/10/87
4,641,384 06/829,627 02/10/87
4,641,385 06/759,987 02/10/87
4,641,391 06/814,977 02/10/87
4,641,395 06/778,569 02/10/87
4,641,398 06/799,723 02/10/87
4,641,399 06/777,275 02/10/87
4,641,405 06/641,113 02/10/87
4,641,407 06/734,026 02/10/87
4,641,408 06/730,141 02/10/87
4,641,411 06/726,488 02/10/87
4,641,412 06/777,688 02/10/87
4,641,414 06/679,759 02/10/87
4,641,425 06/765,087 02/10/87
4,641,426 06/747,343 02/10/87
4,641,427 06/756,503 02/10/87
4,641,428 06/784,395 02/10/87
4,641,429 06/685,490 02/10/87
4,641,433 06/813,063 02/10/87
4,641,435 06/793,524 02/10/87
4,641,436 06/879,626 02/10/87
4,641,444 06/727,522 02/10/87
4,641,445 06/768,067 02/10/87
4,641,446 06/710,329 02/10/87
4,641,449 06/672,924 02/10/87
4,641,450 06/724,990 02/10/87
4,641,454 06/764,086 02/10/87
4,641,456 06/691,206 02/10/87
4,641,458 06/794,310 02/10/87
4,641,460 06/878,293 02/10/87
4,641,464 06/711,004 02/10/87
4,641,470 06/761,228 02/10/87
4,641,473 06/812,233 02/10/87
4,641,474 06/774,703 02/10/87
4,641,475 06/859,793 02/10/87
4,641,477 06/816,436 02/10/87
4,641,480 06/740,854 02/10/87
4,641,482 06/433,001 02/10/87
4,641,488 06/511,544 02/10/87
4,641,492 06/673,612 02/10/87
4,641,494 06/805,327 02/10/87
4,641,497 06/701,906 02/10/87
4,641,508 06/758,823 02/10/87
4,641,520 06/643,348 02/10/87
4,641,530 06/775,268 02/10/87
4,641,531 06/844,513 02/10/87
4,641,538 06/757,613 02/10/87
4,641,546 06/677,294 02/10/87
4,641,547 06/527,273 02/10/87
4,641,549 06/725,417 02/10/87
4,641,552 06/581,620 02/10/87
4,641,554 06/690,164 02/10/87
4,641,555 06/824,627 02/10/87
4,641,556 06/713,424 02/10/87
4,641,563 06/760,315 02/10/87
4,641,566 06/506,770 02/10/87
4,641,577 06/722,595 02/10/87
4,641,578 06/743,783 02/10/87
4,641,579 06/677,206 02/10/87
4,641,580 06/731,239 02/10/87
4,641,582 06/732,510 02/10/87
4,641,585 06/604,144 02/10/87
4,641,592 06/708,913 02/10/87
4,641,593 06/787,436 02/10/87
4,641,594 06/778,946 02/10/87
4,641,596 06/740,424 02/10/87
4,641,597 06/716,736 02/10/87
4,641,599 06/771,022 02/10/87
4,641,601 06/755,614 02/10/87
4,641,606 06/833,122 02/10/87
4,641,607 06/760,992 02/10/87
4,641,608 06/697,812 02/10/87
4,641,610 06/709,432 02/10/87
4,641,611 06/706,153 02/10/87
4,641,617 06/600,717 02/10/87
4,641,619 06/769,704 02/10/87
4,641,621 06/741,609 02/10/87
4,641,622 06/747,177 02/10/87
4,641,624 06/576,648 02/10/87
4,641,627 06/730,226 02/10/87
4,641,628 06/734,791 02/10/87
4,641,629 06/838,736 02/10/87
4,641,630 06/760,879 02/10/87
4,641,639 06/806,867 02/10/87
4,641,643 06/856,312 02/10/87
4,641,646 06/720,310 02/10/87
4,641,648 06/781,028 02/10/87
4,641,649 06/792,895 02/10/87
4,641,655 06/761,882 02/10/87
4,641,659 06/369,804 02/10/87
4,641,660 06/660,997 02/10/87
4,641,663 06/735,098 02/10/87
4,641,664 06/723,081 02/10/87
4,641,667 06/679,573 02/10/87
4,641,670 06/671,571 02/10/87
4,641,682 06/728,611 02/10/87
4,641,687 06/642,242 02/10/87
4,641,689 06/640,686 02/10/87
4,641,693 06/714,679 02/10/87
4,641,696 06/697,933 02/10/87
4,641,698 06/669,588 02/10/87
4,641,699 06/836,076 02/10/87
4,641,702 06/716,961 02/10/87
4,641,705 06/747,965 02/10/87
4,641,706 06/668,409 02/10/87
4,641,708 06/773,397 02/10/87
4,641,709 06/735,795 02/10/87
4,641,711 06/740,980 02/10/87
4,641,714 06/727,805 02/10/87
4,641,717 06/813,804 02/10/87
4,641,719 06/681,232 02/10/87
4,641,724 06/511,415 02/10/87
4,641,731 06/857,389 02/10/87
4,641,733 06/706,210 02/10/87
4,641,735 06/739,103 02/10/87
4,641,739 06/657,528 02/10/87
4,641,742 06/599,927 02/10/87
4,641,743 06/820,108 02/10/87
4,641,747 06/730,223 02/10/87
4,641,750 06/787,527 02/10/87
4,641,751 06/815,721 02/10/87
4,641,752 06/737,471 02/10/87
4,641,755 06/743,227 02/10/87
4,641,756 06/759,648 02/10/87
4,641,757 06/492,268 02/10/87
4,641,759 06/845,951 02/10/87
4,641,760 06/799,324 02/10/87
4,641,761 06/772,837 02/10/87
4,641,764 06/732,425 02/10/87
4,641,766 06/667,624 02/10/87
4,641,768 06/719,089 02/10/87
4,641,770 06/727,942 02/10/87
4,641,771 06/711,446 02/10/87
4,641,775 06/726,241 02/10/87
4,641,777 06/629,882 02/10/87
4,641,782 06/356,908 02/10/87
4,641,785 06/752,939 02/10/87
4,641,790 06/680,740 02/10/87
4,641,791 06/733,623 02/10/87
4,641,792 06/663,590 02/10/87
4,641,799 06/768,166 02/10/87
4,641,802 06/638,769 02/10/87
4,641,807 06/768,796 02/10/87
4,641,808 06/704,448 02/10/87
4,641,811 06/866,858 02/10/87
4,641,813 06/847,507 02/10/87
4,641,816 06/743,962 02/10/87
4,641,818 06/285,349 02/10/87
4,641,821 06/716,490 02/10/87
4,641,823 06/683,081 02/10/87
4,641,826 06/745,296 02/10/87
4,641,828 06/815,652 02/10/87
4,641,830 06/797,948 02/10/87
4,641,831 06/775,631 02/10/87
4,641,838 06/674,660 02/10/87
4,641,839 06/763,864 02/10/87
4,641,843 06/714,279 02/10/87
4,641,847 06/809,028 02/10/87
4,641,851 06/824,954 02/10/87
4,641,857 06/749,671 02/10/87
4,641,858 06/622,641 02/10/87
4,641,861 06/616,308 02/10/87
4,641,864 06/580,873 02/10/87
4,641,866 06/797,114 02/10/87
4,641,869 06/866,276 02/10/87
4,641,871 06/717,567 02/10/87
4,641,881 06/657,892 02/10/87
4,641,885 06/624,979 02/10/87
4,641,886 06/773,930 02/10/87
4,641,887 06/776,659 02/10/87
4,641,891 06/747,021 02/10/87
4,641,894 06/756,740 02/10/87
4,641,896 06/869,460 02/10/87
4,641,898 06/842,811 02/10/87
4,641,903 06/565,561 02/10/87
4,641,908 06/691,623 02/10/87
4,641,911 06/659,079 02/10/87
4,641,912 06/679,538 02/10/87
4,641,913 06/692,872 02/10/87
4,641,914 06/668,129 02/10/87
4,641,918 06/814,980 02/10/87
4,641,922 06/527,435 02/10/87
4,641,933 06/798,438 02/10/87
4,641,936 06/818,164 02/10/87
4,641,939 06/702,983 02/10/87
4,641,957 06/848,683 02/10/87
4,641,958 06/531,203 02/10/87
4,641,964 06/632,866 02/10/87
4,641,968 06/682,155 02/10/87
4,641,971 06/676,952 02/10/87
4,641,978 06/663,857 02/10/87
4,641,980 06/782,922 02/10/87
4,641,981 06/833,836 02/10/87
4,641,990 06/842,544 02/10/87
4,641,992 06/846,855 02/10/87
4,641,995 06/771,494 02/10/87
4,641,998 06/761,617 02/10/87
4,642,000 06/757,402 02/10/87
4,642,005 06/647,889 02/10/87
4,642,007 06/717,852 02/10/87
4,642,008 06/752,917 02/10/87
4,642,013 06/800,913 02/10/87
4,642,018 06/761,311 02/10/87
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4,642,021 06/617,541 02/10/87
4,642,022 06/770,139 02/10/87
4,642,028 06/595,753 02/10/87
4,642,029 06/745,439 02/10/87
4,642,033 06/798,917 02/10/87
4,642,042 06/752,691 02/10/87
4,642,049 06/819,277 02/10/87
4,642,051 06/757,609 02/10/87
4,642,054 06/713,251 02/10/87
4,642,061 06/689,167 02/10/87
4,642,067 06/842,543 02/10/87
4,642,068 06/654,025 02/10/87
4,642,070 06/777,908 02/10/87
4,642,075 06/741,184 02/10/87
4,642,076 06/768,371 02/10/87
4,642,080 06/697,445 02/10/87
4,642,081 06/742,407 02/10/87
4,642,087 06/660,870 02/10/87
4,642,089 06/696,147 02/10/87
4,642,091 06/709,903 02/10/87
4,642,096 06/626,333 02/10/87
4,642,102 06/756,852 02/10/87
4,642,104 06/734,726 02/10/87
4,642,106 06/576,442 02/10/87
4,642,113 06/752,012 02/10/87
4,642,115 06/848,722 02/10/87
4,642,122 06/847,362 02/10/87
4,642,124 06/619,496 02/10/87
4,642,129 06/759,233 02/10/87
4,642,130 06/716,093 02/10/87
4,642,133 06/527,194 02/10/87
4,642,134 06/785,582 02/10/87
4,642,144 06/539,480 02/10/87
4,642,146 06/786,564 02/10/87
4,642,147 06/740,830 02/10/87
4,642,149 06/786,045 02/10/87
4,642,150 06/801,138 02/10/87
4,642,154 06/450,038 02/10/87
4,642,157 06/791,407 02/10/87
4,642,158 06/703,930 02/10/87
4,642,170 06/765,464 02/10/87
4,642,181 06/707,168 02/10/87
4,642,183 06/841,038 02/10/87
4,642,186 06/576,430 02/10/87
4,642,191 06/550,051 02/10/87
4,642,197 06/733,669 02/10/87
4,642,201 06/770,158 02/10/87
4,642,203 06/620,087 02/10/87
4,642,208 06/733,948 02/10/87
4,642,214 06/449,194 02/10/87
4,642,217 06/634,728 02/10/87
4,642,218 06/662,933 02/10/87
4,642,223 06/719,208 02/10/87
4,642,224 06/782,701 02/10/87
4,642,227 06/572,604 02/10/87
4,642,228 06/758,597 02/10/87
4,642,235 06/665,174 02/10/87
4,642,237 06/726,750 02/10/87
4,642,244 06/835,185 02/10/87
4,642,248 06/745,888 02/10/87
4,642,252 06/739,049 02/10/87
4,642,257 06/744,258 02/10/87
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