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
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 ON April 26, 2000
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
4,739,523 06/880,947 04/26/88
4,739,526 07/046,104 04/26/88
4,739,529 07/065,111 04/26/88
4,739,531 06/892,270 04/26/88
4,739,534 07/079,531 04/26/88
4,739,550 06/887,665 04/26/88
4,739,554 06/924,947 04/26/88
4,739,560 06/917,594 04/26/88
4,739,566 06/889,758 04/26/88
4,739,570 07/068,962 04/26/88
4,739,572 06/902,888 04/26/88
4,739,579 06/848,724 04/26/88
4,739,590 07/003,413 04/26/88
4,739,604 06/935,588 04/26/88
4,739,608 06/865,747 04/26/88
4,739,612 06/835,477 04/26/88
4,739,618 06/921,095 04/26/88
4,739,623 07/061,676 04/26/88
4,739,624 07/016,922 04/26/88
4,739,634 07/004,575 04/26/88
4,739,644 06/947,737 04/26/88
4,739,647 06/696,996 04/26/88
4,739,650 06/932,055 04/26/88
4,739,657 07/065,205 04/26/88
4,739,673 06/909,038 04/26/88
4,739,680 06/939,682 04/26/88
4,739,682 06/881,918 04/26/88
4,739,684 06/925,438 04/26/88
4,739,687 06/866,659 04/26/88
4,739,692 06/866,743 04/26/88
4,739,694 06/926,228 04/26/88
4,739,701 07/017,755 04/26/88
4,739,702 06/893,034 04/26/88
4,739,710 06/871,223 04/26/88
4,739,714 07/082,152 04/26/88
4,739,715 06/924,886 04/26/88
4,739,727 07/085,847 04/26/88
4,739,734 06/884,547 04/26/88
4,739,752 07/040,119 04/26/88
4,739,757 06/929,827 04/26/88
4,739,759 06/705,922 04/26/88
4,739,761 06/878,641 04/26/88
4,739,778 07/049,667 04/26/88
4,739,781 06/836,292 04/26/88
4,739,788 07/029,137 04/26/88
4,739,811 06/820,652 04/26/88
4,739,816 06/770,954 04/26/88
4,739,818 07/024,075 04/26/88
4,739,824 07/001,463 04/26/88
4,739,826 06/882,245 04/26/88
4,739,827 07/022,636 04/26/88
4,739,828 06/905,303 04/26/88
4,739,830 06/904,281 04/26/88
4,739,831 06/910,110 04/26/88
4,739,833 06/939,411 04/26/88
4,739,839 06/944,681 04/26/88
4,739,875 06/872,614 04/26/88
4,739,883 07/017,115 04/26/88
4,739,891 07/070,616 04/26/88
4,739,893 06/903,501 04/26/88
4,739,900 06/935,406 04/26/88
4,739,907 07/042,506 04/26/88
4,739,915 06/881,337 04/26/88
4,739,916 06/838,069 04/26/88
4,739,917 07/002,486 04/26/88
4,739,921 07/040,042 04/26/88
4,739,923 07/080,749 04/26/88
4,739,930 06/885,774 04/26/88
4,739,937 07/008,474 04/26/88
4,739,938 06/904,395 04/26/88
4,739,940 06/926,227 04/26/88
4,739,945 07/038,665 04/26/88
4,739,950 06/901,757 04/26/88
4,739,961 07/090,818 04/26/88
4,739,964 06/933,754 04/26/88
4,739,969 06/926,538 04/26/88
4,739,974 06/938,367 04/26/88
4,739,979 06/909,715 04/26/88
4,739,983 06/917,267 04/26/88
4,739,987 06/792,136 04/26/88
4,739,988 06/919,380 04/26/88
4,739,989 06/797,907 04/26/88
4,740,012 07/042,450 04/26/88
4,740,014 06/939,814 04/26/88
4,740,019 06/929,915 04/26/88
4,740,024 07/060,526 04/26/88
4,740,042 07/020,579 04/26/88
4,740,055 06/839,001 04/26/88
4,740,058 06/902,216 04/26/88
4,740,061 06/869,901 04/26/88
4,740,062 06/917,139 04/26/88
4,740,071 06/784,326 04/26/88
4,740,080 06/714,310 04/26/88
4,740,097 06/935,929 04/26/88
4,740,105 07/048,115 04/26/88
4,740,120 06/839,565 04/26/88
4,740,139 06/828,411 04/26/88
4,740,143 06/855,675 04/26/88
4,740,147 06/839,032 04/26/88
4,740,148 06/814,175 04/26/88
4,740,149 06/930,404 04/26/88
4,740,172 06/940,025 04/26/88
4,740,189 06/838,321 04/26/88
4,740,190 07/007,974 04/26/88
4,740,212 06/801,463 04/26/88
4,740,216 06/857,750 04/26/88
4,740,217 06/862,280 04/26/88
4,740,220 06/888,165 04/26/88
4,740,221 06/936,823 04/26/88
4,740,225 06/922,317 04/26/88
4,740,235 06/844,407 04/26/88
4,740,236 06/554,734 04/26/88
4,740,243 06/858,369 04/26/88
4,740,252 07/009,979 04/26/88
4,740,258 06/728,868 04/26/88
4,740,278 07/056,430 04/26/88
4,740,279 06/907,069 04/26/88
4,740,281 06/917,464 04/26/88
4,740,283 07/005,278 04/26/88
4,740,284 07/066,045 04/26/88
4,740,291 06/684,139 04/26/88
4,740,293 06/696,417 04/26/88
4,740,296 06/935,823 04/26/88
4,740,298 06/904,912 04/26/88
4,740,302 06/849,127 04/26/88
4,740,304 06/893,864 04/26/88
4,740,317 07/045,365 04/26/88
4,740,325 07/034,599 04/26/88
4,740,327 06/926,819 04/26/88
4,740,330 06/903,164 04/26/88
4,740,331 06/827,045 04/26/88
4,740,336 06/843,300 04/26/88
4,740,337 06/866,948 04/26/88
4,740,343 07/029,581 04/26/88
4,740,354 06/909,226 04/26/88
4,740,368 06/807,801 04/26/88
4,740,384 07/082,934 04/26/88
4,740,385 07/019,072 04/26/88
4,740,388 06/932,243 04/26/88
4,740,396 07/010,502 04/26/88
4,740,415 06/884,245 04/26/88
4,740,416 07/077,574 04/26/88
4,740,417 06/888,192 04/26/88
4,740,422 07/033,493 04/26/88
4,740,423 06/825,934 04/26/88
4,740,426 06/901,568 04/26/88
4,740,427 06/867,416 04/26/88
4,740,436 06/882,009 04/26/88
4,740,442 06/862,078 04/26/88
4,740,470 06/602,294 04/26/88
4,740,472 06/762,368 04/26/88
4,740,476 06/789,977 04/26/88
4,740,483 07/020,847 04/26/88
4,740,501 06/711,830 04/26/88
4,740,507 06/812,344 04/26/88
4,740,509 06/909,837 04/26/88
4,740,510 06/825,068 04/26/88
4,740,511 07/015,829 04/26/88
4,740,512 06/933,703 04/26/88
4,740,524 06/864,046 04/26/88
4,740,530 07/091,970 04/26/88
4,740,531 07/076,980 04/26/88
4,740,534 06/898,710 04/26/88
4,740,538 06/891,980 04/26/88
4,740,541 07/056,314 04/26/88
4,740,546 07/058,785 04/26/88
4,740,550 06/875,830 04/26/88
4,740,558 06/940,610 04/26/88
4,740,559 06/781,827 04/26/88
4,740,563 06/936,697 04/26/88
4,740,564 06/936,695 04/26/88
4,740,566 06/866,470 04/26/88
4,740,575 07/045,932 04/26/88
4,740,578 06/843,860 04/26/88
4,740,579 07/052,503 04/26/88
4,740,597 06/767,940 04/26/88
4,740,600 06/816,250 04/26/88
4,740,603 06/873,282 04/26/88
4,740,610 06/898,480 04/26/88
4,740,614 07/016,745 04/26/88
4,740,618 06/533,622 04/26/88
4,740,619 07/013,405 04/26/88
4,740,620 06/796,465 04/26/88
4,740,621 06/793,788 04/26/88
4,740,622 06/850,695 04/26/88
4,740,628 07/052,501 04/26/88
4,740,629 07/069,639 04/26/88
4,740,636 07/049,918 04/26/88
4,740,645 06/903,915 04/26/88
4,740,648 06/906,895 04/26/88
4,740,659 07/019,139 04/26/88
4,740,665 06/899,220 04/26/88
4,740,669 06/850,328 04/26/88
4,740,670 06/887,233 04/26/88
4,740,676 06/858,792 04/26/88
4,740,679 06/832,810 04/26/88
4,740,690 06/414,164 04/26/88
4,740,692 06/873,376 04/26/88
4,740,694 06/910,143 04/26/88
4,740,697 06/788,757 04/26/88
4,740,710 06/944,833 04/26/88
4,740,711 06/936,189 04/26/88
4,740,719 06/928,001 04/26/88
4,740,720 07/041,023 04/26/88
4,740,722 06/947,863 04/26/88
4,740,724 07/063,502 04/26/88
4,740,734 07/093,757 04/26/88
4,740,745 06/885,194 04/26/88
4,740,747 06/705,467 04/26/88
4,740,750 06/827,675 04/26/88
4,740,756 06/868,967 04/26/88
4,740,764 07/057,550 04/26/88
4,740,770 06/919,637 04/26/88
4,740,783 06/794,900 04/26/88
4,740,787 06/779,848 04/26/88
4,740,789 07/008,908 04/26/88
4,740,790 06/775,364 04/26/88
4,740,793 06/920,646 04/26/88
4,740,802 06/880,988 04/26/88
4,740,815 07/070,558 04/26/88
4,740,817 06/851,827 04/26/88
4,740,844 06/849,801 04/26/88
4,740,848 07/088,008 04/26/88
4,740,851 06/854,419 04/26/88
4,740,856 06/694,321 04/26/88
4,740,857 06/633,377 04/26/88
4,740,859 06/865,143 04/26/88
4,740,872 06/843,578 04/26/88
4,740,880 06/920,239 04/26/88
4,740,881 07/000,994 04/26/88
4,740,884 06/873,305 04/26/88
4,740,888 06/934,700 04/26/88
4,740,893 06/763,167 04/26/88
4,740,897 06/718,112 04/26/88
4,740,899 06/394,361 04/26/88
4,740,900 06/794,225 04/26/88
4,740,902 06/746,788 04/26/88
4,740,903 06/733,879 04/26/88
4,740,904 06/794,942 04/26/88
4,740,908 06/705,569 04/26/88
4,740,914 06/687,786 04/26/88
4,740,917 06/797,068 04/26/88
4,740,918 06/762,520 04/26/88
4,740,922 06/788,398 04/26/88
4,740,936 06/940,518 04/26/88
4,740,938 06/719,609 04/26/88
4,740,939 06/865,389 04/26/88
4,740,941 06/628,197 04/26/88
4,740,951 06/839,704 04/26/88
4,740,955 06/924,677 04/26/88
4,740,957 06/759,574 04/26/88
4,740,959 06/813,851 04/26/88
4,740,960 06/925,045 04/26/88
4,740,961 06/925,044 04/26/88
4,740,964 06/876,637 04/26/88
4,740,968 06/923,522 04/26/88
4,740,989 07/023,692 04/26/88
4,741,002 07/008,449 04/26/88
4,741,012 06/821,591 04/26/88
4,741,013 07/017,730 04/26/88
4,741,017 06/939,367 04/26/88
4,741,019 06/711,300 04/26/88
4,741,024 06/760,864 04/26/88
4,741,030 06/925,840 04/26/88
4,741,034 06/897,960 04/26/88
4,741,035 06/847,145 04/26/88
4,741,049 06/932,967 04/26/88
PATENTS WHICH EXPIRED ON April 21, 2000
DUE TO FAILURE TO PAY MAINTENANCE FEES
5,105,475 07/754,173 04/21/92
5,105,479 07/632,404 04/21/92
5,105,484 07/594,075 04/21/92
5,105,485 07/373,346 04/21/92
5,105,492 07/736,599 04/21/92
5,105,494 07/621,308 04/21/92
5,105,495 07/568,360 04/21/92
5,105,498 07/628,015 04/21/92
5,105,506 07/641,715 04/21/92
5,105,507 07/565,513 04/21/92
5,105,513 07/546,242 04/21/92
5,105,514 07/627,065 04/21/92
5,105,515 07/614,586 04/21/92
5,105,523 07/706,777 04/21/92
5,105,530 07/509,515 04/21/92
5,105,532 07/604,869 04/21/92
5,105,537 07/596,432 04/21/92
5,105,542 07/620,718 04/21/92
5,105,544 07/761,255 04/21/92
5,105,545 07/616,565 04/21/92
5,105,547 07/733,742 04/21/92
5,105,550 07/674,609 04/21/92
5,105,552 07/362,442 04/21/92
5,105,555 07/608,071 04/21/92
5,105,556 07/230,155 04/21/92
5,105,564 07/653,852 04/21/92
5,105,566 07/759,721 04/21/92
5,105,571 07/599,812 04/21/92
5,105,581 07/395,468 04/21/92
5,105,582 07/686,663 04/21/92
5,105,585 07/691,895 04/21/92
5,105,589 07/604,391 04/21/92
5,105,597 07/604,136 04/21/92
5,105,604 07/739,016 04/21/92
5,105,615 07/590,693 04/21/92
5,105,617 07/611,418 04/21/92
5,105,618 07/514,250 04/21/92
5,105,621 07/745,814 04/21/92
5,105,626 07/643,423 04/21/92
5,105,627 07/512,201 04/21/92
5,105,628 07/455,332 04/21/92
5,105,630 07/724,798 04/21/92
5,105,631 07/622,950 04/21/92
5,105,634 07/605,596 04/21/92
5,105,651 07/554,297 04/21/92
5,105,653 07/655,846 04/21/92
5,105,654 07/642,140 04/21/92
5,105,655 07/643,464 04/21/92
5,105,657 07/637,683 04/21/92
5,105,659 07/585,000 04/21/92
5,105,661 07/632,124 04/21/92
5,105,664 07/680,382 04/21/92
5,105,668 07/769,074 04/21/92
5,105,670 07/699,827 04/21/92
5,105,674 07/584,823 04/21/92
5,105,675 07/709,188 04/21/92
5,105,677 07/661,146 04/21/92
5,105,678 07/715,988 04/21/92
5,105,685 07/534,868 04/21/92
5,105,686 07/692,954 04/21/92
5,105,694 07/605,123 04/21/92
5,105,698 07/672,044 04/21/92
5,105,701 07/618,733 04/21/92
5,105,704 07/697,708 04/21/92
5,105,707 07/530,964 04/21/92
5,105,712 07/694,956 04/21/92
5,105,724 07/662,487 04/21/92
5,105,734 07/679,046 04/21/92
5,105,736 07/458,243 04/21/92
5,105,741 07/596,787 04/21/92
5,105,748 07/657,848 04/21/92
5,105,749 07/659,865 04/21/92
5,105,759 07/506,283 04/21/92
5,105,765 07/718,963 04/21/92
5,105,790 07/633,394 04/21/92
5,105,791 07/633,393 04/21/92
5,105,799 07/765,253 04/21/92
5,105,804 07/535,366 04/21/92
5,105,805 07/546,445 04/21/92
5,105,815 07/556,311 04/21/92
5,105,824 07/444,861 04/21/92
5,105,825 07/551,526 04/21/92
5,105,828 07/645,646 04/21/92
5,105,829 07/698,187 04/21/92
5,105,834 07/606,287 04/21/92
5,105,836 07/567,520 04/21/92
5,105,837 07/574,327 04/21/92
5,105,850 07/733,880 04/21/92
5,105,855 07/611,415 04/21/92
5,105,857 07/606,308 04/21/92
5,105,865 07/452,435 04/21/92
5,105,868 07/737,387 04/21/92
5,105,869 07/714,600 04/21/92
5,105,881 07/653,674 04/21/92
5,105,882 07/470,056 04/21/92
5,105,886 07/602,566 04/21/92
5,105,887 07/663,267 04/21/92
5,105,889 07/619,419 04/21/92
5,105,890 07/609,419 04/21/92
5,105,892 07/613,315 04/21/92
5,105,897 07/669,997 04/21/92
5,105,899 07/419,161 04/21/92
5,105,906 07/509,567 04/21/92
5,105,908 07/640,146 04/21/92
5,105,910 07/637,681 04/21/92
5,105,913 07/737,380 04/21/92
5,105,916 07/607,437 04/21/92
5,105,918 07/424,854 04/21/92
5,105,925 07/618,615 04/21/92
5,105,929 07/709,936 04/21/92
5,105,930 07/534,517 04/21/92
5,105,932 07/491,113 04/21/92
5,105,940 07/699,744 04/21/92
5,105,944 07/582,656 04/21/92
5,105,948 07/647,349 04/21/92
5,105,956 07/625,934 04/21/92
5,105,960 07/785,814 04/21/92
5,105,961 07/592,852 04/21/92
5,105,962 07/602,294 04/21/92
5,105,967 07/677,200 04/21/92
5,105,969 07/690,298 04/21/92
5,105,974 07/548,525 04/21/92
5,105,979 07/578,733 04/21/92
5,105,984 07/544,751 04/21/92
5,105,986 07/576,800 04/21/92
5,105,988 07/538,735 04/21/92
5,105,992 07/261,122 04/21/92
5,105,993 07/458,891 04/21/92
5,106,000 07/688,106 04/21/92
5,106,012 07/225,907 04/21/92
5,106,025 07/592,253 04/21/92
5,106,036 07/622,422 04/21/92
5,106,037 07/475,060 04/21/92
5,106,052 07/697,896 04/21/92
5,106,060 07/745,499 04/21/92
5,106,062 07/681,336 04/21/92
5,106,080 07/568,506 04/21/92
5,106,085 07/666,149 04/21/92
5,106,086 07/780,894 04/21/92
5,106,087 07/567,177 04/21/92
5,106,090 07/626,028 04/21/92
5,106,098 07/615,134 04/21/92
5,106,105 07/599,818 04/21/92
5,106,106 07/633,399 04/21/92
5,106,109 07/685,885 04/21/92
5,106,113 07/678,290 04/21/92
5,106,127 07/633,245 04/21/92
5,106,128 07/332,747 04/21/92
5,106,132 07/652,515 04/21/92
5,106,136 07/729,437 04/21/92
5,106,138 07/631,204 04/21/92
5,106,140 07/509,249 04/21/92
5,106,142 07/624,711 04/21/92
5,106,150 07/477,778 04/21/92
5,106,152 07/712,593 04/21/92
5,106,160 07/635,944 04/21/92
5,106,182 07/588,464 04/21/92
5,106,199 07/730,519 04/21/92
5,106,201 07/529,969 04/21/92
5,106,204 07/674,790 04/21/92
5,106,214 07/633,046 04/21/92
5,106,223 07/695,616 04/21/92
5,106,227 07/655,730 04/21/92
5,106,229 07/594,701 04/21/92
5,106,233 07/398,613 04/21/92
5,106,238 07/577,775 04/21/92
5,106,253 07/650,901 04/21/92
5,106,258 07/552,128 04/21/92
5,106,261 07/482,957 04/21/92
5,106,263 07/586,112 04/21/92
5,106,266 07/577,849 04/21/92
5,106,277 07/569,711 04/21/92
5,106,278 07/532,396 04/21/92
5,106,279 07/649,894 04/21/92
5,106,281 07/604,645 04/21/92
5,106,282 07/451,663 04/21/92
5,106,286 07/545,216 04/21/92
5,106,290 07/547,896 04/21/92
5,106,293 07/108,134 04/21/92
5,106,294 07/670,367 04/21/92
5,106,297 07/600,748 04/21/92
5,106,299 07/720,744 04/21/92
5,106,304 07/594,861 04/21/92
5,106,305 07/536,580 04/21/92
5,106,306 07/722,317 04/21/92
5,106,320 07/682,631 04/21/92
5,106,334 07/716,738 04/21/92
5,106,339 07/758,708 04/21/92
5,106,340 07/636,716 04/21/92
5,106,342 07/488,069 04/21/92
5,106,345 07/630,455 04/21/92
5,106,347 07/432,671 04/21/92
5,106,351 07/730,213 04/21/92
5,106,357 07/614,985 04/21/92
5,106,359 07/760,500 04/21/92
5,106,364 07/545,494 04/21/92
5,106,369 07/619,190 04/21/92
5,106,372 07/695,152 04/21/92
5,106,382 07/645,228 04/21/92
5,106,384 07/645,191 04/21/92
5,106,390 07/439,098 04/21/92
5,106,395 07/538,253 04/21/92
5,106,396 07/620,999 04/21/92
5,106,398 07/445,074 04/21/92
5,106,401 07/544,942 04/21/92
5,106,404 07/581,020 04/21/92
5,106,409 07/521,193 04/21/92
5,106,411 07/516,209 04/21/92
5,106,412 07/694,615 04/21/92
5,106,417 07/601,147 04/21/92
5,106,425 07/659,800 04/21/92
5,106,428 07/518,177 04/21/92
5,106,435 07/554,996 04/21/92
5,106,438 07/516,922 04/21/92
5,106,442 07/547,285 04/21/92
5,106,445 07/544,648 04/21/92
5,106,446 07/519,706 04/21/92
5,106,451 07/614,795 04/21/92
5,106,459 07/627,252 04/21/92
5,106,460 07/756,803 04/21/92
5,106,462 07/432,811 04/21/92
5,106,463 07/232,000 04/21/92
5,106,464 07/510,342 04/21/92
5,106,477 07/610,374 04/21/92
5,106,480 07/653,997 04/21/92
5,106,482 07/342,116 04/21/92
5,106,483 07/577,022 04/21/92
5,106,489 07/742,604 04/21/92
5,106,501 07/764,049 04/21/92
5,106,503 07/566,449 04/21/92
5,106,505 07/443,335 04/21/92
5,106,506 07/592,973 04/21/92
5,106,511 07/454,902 04/21/92
5,106,515 07/618,436 04/21/92
5,106,528 07/521,810 04/21/92
5,106,534 07/688,227 04/21/92
5,106,535 07/470,465 04/21/92
5,106,568 07/793,010 04/21/92
5,106,572 07/417,092 04/21/92
5,106,574 07/565,256 04/21/92
5,106,577 07/656,303 04/21/92
5,106,584 07/437,287 04/21/92
5,106,586 07/527,501 04/21/92
5,106,587 07/385,821 04/21/92
5,106,591 07/674,416 04/21/92
5,106,593 07/631,850 04/21/92
5,106,607 07/495,597 04/21/92
5,106,610 07/458,591 04/21/92
5,106,623 07/627,353 04/21/92
5,106,635 07/437,001 04/21/92
5,106,641 07/690,047 04/21/92
5,106,643 07/387,384 04/21/92
5,106,645 07/478,632 04/21/92
5,106,649 07/496,564 04/21/92
5,106,659 07/647,763 04/21/92
5,106,666 07/503,184 04/21/92
5,106,675 07/627,652 04/21/92
5,106,679 07/553,777 04/21/92
5,106,684 07/655,824 04/21/92
5,106,685 07/377,845 04/21/92
5,106,686 07/190,197 04/21/92
5,106,698 07/326,903 04/21/92
5,106,709 07/556,357 04/21/92
5,106,713 07/588,395 04/21/92
5,106,728 07/494,942 04/21/92
5,106,735 07/223,304 04/21/92
5,106,737 07/658,673 04/21/92
5,106,745 07/446,630 04/21/92
5,106,755 07/419,589 04/21/92
5,106,756 07/452,014 04/21/92
5,106,762 07/512,272 04/21/92
5,106,775 07/564,470 04/21/92
5,106,778 07/481,860 04/21/92
5,106,781 07/611,388 04/21/92
5,106,789 07/415,195 04/21/92
5,106,791 07/713,415 04/21/92
5,106,796 07/760,181 04/21/92
5,106,809 07/627,528 04/21/92
5,106,810 07/525,829 04/21/92
5,106,811 07/590,745 04/21/92
5,106,827 07/652,231 04/21/92
5,106,828 07/075,491 04/21/92
5,106,834 07/290,667 04/21/92
5,106,840 07/533,415 04/21/92
5,106,842 07/600,656 04/21/92
5,106,844 07/757,088 04/21/92
5,106,851 07/474,187 04/21/92
5,106,853 07/520,891 04/21/92
5,106,865 07/732,659 04/21/92
5,106,868 07/696,610 04/21/92
5,106,870 07/579,549 04/21/92
5,106,872 07/499,126 04/21/92
5,106,876 07/409,755 04/21/92
5,106,877 07/606,697 04/21/92
5,106,883 07/646,552 04/21/92
5,106,884 07/264,126 04/21/92
5,106,901 07/456,821 04/21/92
5,106,902 07/669,800 04/21/92
5,106,908 07/271,248 04/21/92
5,106,910 07/433,767 04/21/92
5,106,917 07/486,561 04/21/92
5,106,922 07/444,239 04/21/92
5,106,926 07/625,769 04/21/92
5,106,927 07/405,286 04/21/92
5,106,929 07/591,301 04/21/92
5,106,937 07/601,358 04/21/92
5,106,943 07/587,783 04/21/92
5,106,947 07/506,405 04/21/92
5,106,951 07/332,610 04/21/92
5,106,961 07/307,556 04/21/92
5,106,968 07/733,895 04/21/92
5,106,970 07/724,628 04/21/92
5,106,976 07/506,171 04/21/92
5,106,977 07/589,289 04/21/92
5,106,981 07/510,705 04/21/92
5,106,983 07/517,012 04/21/92
5,106,993 07/643,253 04/21/92
5,107,006 07/613,733 04/21/92
5,107,019 07/534,769 04/21/92
5,107,020 06/937,989 04/21/92
5,107,027 07/561,408 04/21/92
5,107,036 07/602,680 04/21/92
5,107,047 07/649,115 04/21/92
5,107,051 07/323,518 04/21/92
5,107,052 07/636,646 04/21/92
5,107,054 07/663,758 04/21/92
5,107,068 07/515,839 04/21/92
5,107,077 07/333,277 04/21/92
5,107,078 07/569,397 04/21/92
5,107,079 07/670,998 04/21/92
5,107,080 07/444,540 04/21/92
5,107,081 07/758,718 04/21/92
5,107,103 07/470,818 04/21/92
5,107,108 07/541,792 04/21/92
5,107,113 07/633,754 04/21/92
5,107,114 07/685,434 04/21/92
5,107,118 07/590,728 04/21/92
5,107,120 07/411,544 04/21/92
5,107,121 07/679,173 04/21/92
5,107,131 07/528,509 04/21/92
5,107,136 07/501,647 04/21/92
5,107,157 07/601,381 04/21/92
5,107,158 07/590,994 04/21/92
5,107,160 07/495,472 04/21/92
5,107,163 07/553,426 04/21/92
5,107,166 07/405,651 04/21/92
5,107,171 07/560,468 04/21/92
5,107,177 07/550,139 04/21/92
5,107,180 07/607,904 04/21/92
5,107,187 07/622,921 04/21/92
5,107,194 07/393,201 04/21/92
5,107,197 07/411,285 04/21/92
5,107,198 07/548,920 04/21/92
5,107,202 07/425,800 04/21/92
5,107,216 07/473,428 04/21/92
5,107,217 07/499,771 04/21/92
5,107,224 07/317,116 04/21/92
5,107,226 07/648,149 04/21/92
5,107,230 07/692,089 04/21/92
5,107,245 07/544,515 04/21/92
5,107,246 07/654,985 04/21/92
5,107,248 07/581,926 04/21/92
5,107,260 07/482,964 04/21/92
5,107,261 07/484,158 04/21/92
5,107,263 07/626,615 04/21/92
5,107,273 06/264,321 04/21/92
5,107,277 07/673,279 04/21/92
5,107,279 07/728,036 04/21/92
5,107,283 07/634,608 04/21/92
5,107,287 07/637,852 04/21/92
5,107,288 07/639,512 04/21/92
5,107,298 07/557,027 04/21/92
5,107,310 07/661,268 04/21/92
5,107,329 07/315,608 04/21/92
5,107,331 07/619,656 04/21/92
5,107,342 07/442,118 04/21/92
5,107,344 07/467,536 04/21/92
5,107,351 07/481,446 04/21/92
5,107,354 07/726,165 04/21/92
5,107,363 07/498,053 04/21/92
5,107,367 07/499,942 04/21/92
5,107,372 07/403,456 04/21/92
5,107,373 07/615,799 04/21/92
5,107,376 07/614,015 04/21/92
5,107,385 07/438,263 04/21/92
5,107,406 07/557,942 04/21/92
5,107,411 07/547,558 04/21/92
5,107,414 07/457,166 04/21/92
5,107,416 07/290,623 04/21/92
5,107,417 07/255,603 04/21/92
5,107,419 07/138,535 04/21/92
5,107,420 07/084,804 04/21/92
5,107,427 07/542,249 04/21/92
5,107,438 07/473,035 04/21/92
5,107,439 07/612,040 04/21/92
5,107,442 07/665,257 04/21/92
5,107,451 07/472,237 04/21/92
5,107,456 07/252,245 04/21/92
5,107,457 07/331,718 04/21/92
5,107,460 07/535,728 04/21/92
5,107,462 07/306,445 04/21/92
5,107,472 07/376,412 04/21/92
5,107,475 07/473,246 04/21/92
5,107,476 07/503,029 04/21/92
5,107,488 07/553,534 04/21/92
5,107,492 07/540,245 04/21/92
5,107,494 07/617,291 04/21/92
5,107,495 07/540,633 04/21/92
5,107,506 07/469,924 04/21/92
5,107,507 07/198,961 04/21/92
5,107,511 07/381,723 04/21/92
5,107,524 07/495,098 04/21/92
5,107,526 07/606,988 04/21/92
5,107,530 07/712,144 04/21/92
5,107,534 07/411,968 04/21/92
5,107,535 07/608,745 04/21/92
5,107,539 07/542,037 04/21/92
PATENTS WHICH EXPIRED ON April 23, 2000
DUE TO FAILURE TO PAY MAINTENANCE FEES
5,509,145 08/323,689 04/23/96
5,509,152 08/281,180 04/23/96
5,509,156 08/420,015 04/23/96
5,509,157 08/158,963 04/23/96
5,509,158 08/440,243 04/23/96
5,509,163 08/412,997 04/23/96
5,509,165 08/415,451 04/23/96
5,509,167 08/263,097 04/23/96
5,509,171 08/350,903 04/23/96
5,509,172 08/225,832 04/23/96
5,509,180 08/332,701 04/23/96
5,509,183 08/439,784 04/23/96
5,509,185 08/259,882 04/23/96
5,509,186 08/348,449 04/23/96
5,509,202 08/453,858 04/23/96
5,509,204 08/143,174 04/23/96
5,509,206 08/141,631 04/23/96
5,509,207 08/303,633 04/23/96
5,509,208 08/171,056 04/23/96
5,509,209 08/266,185 04/23/96
5,509,210 08/329,989 04/23/96
5,509,213 08/183,745 04/23/96
5,509,217 08/340,166 04/23/96
5,509,224 08/408,572 04/23/96
5,509,225 08/281,647 04/23/96
5,509,227 08/408,369 04/23/96
5,509,228 08/219,509 04/23/96
5,509,232 08/409,420 04/23/96
5,509,236 08/252,683 04/23/96
5,509,237 08/198,143 04/23/96
5,509,238 08/283,983 04/23/96
5,509,239 08/505,006 04/23/96
5,509,241 08/317,699 04/23/96
5,509,246 08/339,342 04/23/96
5,509,248 08/311,917 04/23/96
5,509,250 08/123,875 04/23/96
5,509,254 08/238,650 04/23/96
5,509,256 08/359,432 04/23/96
5,509,259 08/293,025 04/23/96
5,509,266 08/381,866 04/23/96
5,509,278 08/426,538 04/23/96
5,509,279 08/255,650 04/23/96
5,509,294 08/416,561 04/23/96
5,509,298 07/687,880 04/23/96
5,509,299 08/211,684 04/23/96
5,509,305 08/396,579 04/23/96
5,509,307 08/158,736 04/23/96
5,509,308 08/322,566 04/23/96
5,509,309 08/346,864 04/23/96
5,509,311 08/283,566 04/23/96
5,509,321 08/277,653 04/23/96
5,509,326 08/160,343 04/23/96
5,509,328 08/383,177 04/23/96
5,509,329 08/327,943 04/23/96
5,509,330 08/409,343 04/23/96
5,509,332 08/202,574 04/23/96
5,509,335 08/201,943 04/23/96
5,509,338 08/187,643 04/23/96
5,509,339 08/263,724 04/23/96
5,509,340 08/345,497 04/23/96
5,509,346 08/453,227 04/23/96
5,509,360 08/354,852 04/23/96
5,509,367 07/976,557 04/23/96
5,509,371 08/488,753 04/23/96
5,509,377 08/279,558 04/23/96
5,509,379 08/230,341 04/23/96
5,509,384 08/309,132 04/23/96
5,509,390 08/403,186 04/23/96
5,509,392 08/431,176 04/23/96
5,509,399 08/371,759 04/23/96
5,509,400 08/127,549 04/23/96
5,509,414 08/312,756 04/23/96
5,509,417 08/358,279 04/23/96
5,509,426 08/257,210 04/23/96
5,509,427 08/124,264 04/23/96
5,509,432 08/500,184 04/23/96
5,509,434 08/349,871 04/23/96
5,509,438 08/254,649 04/23/96
5,509,440 08/193,156 04/23/96
5,509,443 08/272,789 04/23/96
5,509,446 08/443,396 04/23/96
5,509,459 08/313,955 04/23/96
5,509,462 08/243,573 04/23/96
5,509,465 08/401,832 04/23/96
5,509,472 07/977,166 04/23/96
5,509,475 08/421,233 04/23/96
5,509,479 08/302,310 04/23/96
5,509,485 08/206,524 04/23/96
5,509,486 08/289,606 04/23/96
5,509,487 08/313,155 04/23/96
5,509,492 08/137,311 04/23/96
5,509,494 08/475,095 04/23/96
5,509,495 08/094,124 04/23/96
5,509,499 08/297,245 04/23/96
5,509,500 08/320,697 04/23/96
5,509,503 08/249,559 04/23/96
5,509,506 08/382,397 04/23/96
5,509,507 08/245,111 04/23/96
5,509,510 08/356,031 04/23/96
5,509,521 08/158,253 04/23/96
5,509,522 08/240,833 04/23/96
5,509,523 08/306,606 04/23/96
5,509,529 08/390,405 04/23/96
5,509,531 08/372,929 04/23/96
5,509,536 08/213,604 04/23/96
5,509,538 08/071,897 04/23/96
5,509,543 08/227,110 04/23/96
5,509,545 08/226,491 04/23/96
5,509,550 08/368,985 04/23/96
5,509,567 08/465,671 04/23/96
5,509,569 08/354,552 04/23/96
5,509,575 08/268,499 04/23/96
5,509,577 08/235,866 04/23/96
5,509,588 08/345,123 04/23/96
5,509,590 08/241,918 04/23/96
5,509,591 08/307,934 04/23/96
5,509,592 08/240,567 04/23/96
5,509,595 08/410,689 04/23/96
5,509,601 08/520,073 04/23/96
5,509,603 08/347,672 04/23/96
5,509,605 08/293,497 04/23/96
5,509,607 08/269,067 04/23/96
5,509,617 08/269,880 04/23/96
5,509,621 08/048,255 04/23/96
5,509,623 08/261,902 04/23/96
5,509,624 08/133,183 04/23/96
5,509,628 08/489,302 04/23/96
5,509,636 08/396,349 04/23/96
5,509,639 08/132,041 04/23/96
5,509,650 08/323,029 04/23/96
5,509,651 08/186,804 04/23/96
5,509,654 08/193,659 04/23/96
5,509,657 08/387,314 04/23/96
5,509,661 08/371,860 04/23/96
5,509,662 08/491,085 04/23/96
5,509,672 08/432,462 04/23/96
5,509,675 08/335,268 04/23/96
5,509,676 08/372,465 04/23/96
5,509,683 08/533,255 04/23/96
5,509,686 07/878,712 04/23/96
5,509,687 08/428,617 04/23/96
5,509,689 08/373,432 04/23/96
5,509,692 08/183,059 04/23/96
5,509,696 08/399,609 04/23/96
5,509,704 08/283,328 04/23/96
5,509,708 08/291,563 04/23/96
5,509,710 08/401,323 04/23/96
5,509,713 08/328,439 04/23/96
5,509,722 08/228,284 04/23/96
5,509,724 08/235,884 04/23/96
5,509,725 08/341,950 04/23/96
5,509,731 08/136,829 04/23/96
5,509,732 08/357,828 04/23/96
5,509,737 08/333,177 04/23/96
5,509,743 08/160,817 04/23/96
5,509,745 08/359,841 04/23/96
5,509,746 08/263,740 04/23/96
5,509,754 08/366,315 04/23/96
5,509,755 08/173,604 04/23/96
5,509,762 08/404,910 04/23/96
5,509,765 08/289,917 04/23/96
5,509,775 08/338,704 04/23/96
5,509,787 08/319,512 04/23/96
5,509,790 08/214,949 04/23/96
5,509,804 08/290,906 04/23/96
5,509,805 08/153,318 04/23/96
5,509,806 08/189,875 04/23/96
5,509,818 08/329,107 04/23/96
5,509,826 08/142,172 04/23/96
5,509,841 08/416,042 04/23/96
5,509,846 08/345,582 04/23/96
5,509,852 08/250,288 04/23/96
5,509,853 08/272,934 04/23/96
5,509,859 08/496,601 04/23/96
5,509,864 08/362,225 04/23/96
5,509,871 08/333,285 04/23/96
5,509,872 08/410,282 04/23/96
5,509,874 08/410,511 04/23/96
5,509,875 08/291,662 04/23/96
5,509,877 08/379,760 04/23/96
5,509,886 08/036,439 04/23/96
5,509,889 08/471,788 04/23/96
5,509,890 08/340,030 04/23/96
5,509,891 08/358,695 04/23/96
5,509,893 08/162,030 04/23/96
5,509,901 08/030,266 04/23/96
5,509,903 07/978,812 04/23/96
5,509,911 07/982,498 04/23/96
5,509,924 08/226,741 04/23/96
5,509,936 08/268,336 04/23/96
5,509,937 08/420,161 04/23/96
5,509,941 08/414,341 04/23/96
5,509,944 08/287,783 04/23/96
5,509,945 08/463,307 04/23/96
5,509,951 08/027,530 04/23/96
5,509,954 08/218,727 04/23/96
5,509,955 08/104,316 04/23/96
5,509,961 08/193,652 04/23/96
5,509,962 08/246,806 04/23/96
5,509,967 08/256,505 04/23/96
5,509,968 08/191,434 04/23/96
5,509,969 08/283,176 04/23/96
5,509,982 08/446,401 04/23/96
5,509,986 08/294,239 04/23/96
5,509,999 08/195,139 04/23/96
5,510,012 07/888,825 04/23/96
5,510,020 08/311,114 04/23/96
5,510,022 08/243,262 04/23/96
5,510,023 08/288,739 04/23/96
5,510,027 08/423,707 04/23/96
5,510,028 08/308,849 04/23/96
5,510,038 08/322,235 04/23/96
5,510,046 08/396,991 04/23/96
5,510,048 08/324,320 04/23/96
5,510,051 08/283,811 04/23/96
5,510,057 08/232,282 04/23/96
5,510,068 08/369,267 04/23/96
5,510,069 08/099,332 04/23/96
5,510,073 08/227,106 04/23/96
5,510,076 08/349,083 04/23/96
5,510,088 07/897,173 04/23/96
5,510,090 08/094,046 04/23/96
5,510,097 08/245,928 04/23/96
5,510,133 08/344,678 04/23/96
5,510,136 08/326,867 04/23/96
5,510,147 08/398,636 04/23/96
5,510,162 08/283,408 04/23/96
5,510,164 08/358,135 04/23/96
5,510,167 07/957,737 04/23/96
5,510,170 08/218,278 04/23/96
5,510,181 08/087,864 04/23/96
5,510,183 08/334,420 04/23/96
5,510,184 08/207,874 04/23/96
5,510,185 08/361,151 04/23/96
5,510,194 08/054,315 04/23/96
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