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 December 10, 1997
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
4,556,993 06/612,884 12/10/85
4,556,995 06/569,805 12/10/85
4,557,009 06/653,689 12/10/85
4,557,012 06/615,510 12/10/85
4,557,017 06/548,346 12/10/85
4,557,021 06/249,408 12/10/85
4,557,026 06/371,774 12/10/85
4,557,027 06/531,873 12/10/85
4,557,029 06/473,281 12/10/85
4,557,040 06/602,156 12/10/85
4,557,041 06/613,135 12/10/85
4,557,049 06/634,672 12/10/85
4,557,055 06/633,918 12/10/85
4,557,061 06/435,287 12/10/85
4,557,062 06/742,181 12/10/85
4,557,067 06/702,585 12/10/85
4,557,072 06/586,795 12/10/85
4,557,076 06/606,955 12/10/85
4,557,085 06/530,993 12/10/85
4,557,089 06/461,655 12/10/85
4,557,093 06/579,195 12/10/85
4,557,094 06/674,664 12/10/85
4,557,107 06/272,914 12/10/85
4,557,108 06/666,224 12/10/85
4,557,111 06/481,156 12/10/85
4,557,118 06/678,917 12/10/85
4,557,122 06/526,286 12/10/85
4,557,134 06/653,078 12/10/85
4,557,137 06/530,061 12/10/85
4,557,144 06/512,049 12/10/85
4,557,148 06/601,051 12/10/85
4,557,150 06/545,473 12/10/85
4,557,153 06/503,742 12/10/85
4,557,154 06/418,654 12/10/85
4,557,167 06/637,530 12/10/85
4,557,170 06/602,288 12/10/85
4,557,183 06/673,588 12/10/85
4,557,192 06/266,789 12/10/85
4,557,194 06/614,412 12/10/85
4,557,198 06/468,596 12/10/85
4,557,199 06/516,683 12/10/85
4,557,200 06/523,167 12/10/85
4,557,207 06/579,310 12/10/85
4,557,213 06/660,990 12/10/85
4,557,217 06/639,041 12/10/85
4,557,220 06/571,553 12/10/85
4,557,227 06/608,905 12/10/85
4,557,232 06/694,156 12/10/85
4,557,238 06/406,278 12/10/85
4,557,241 06/344,971 12/10/85
4,557,245 06/570,006 12/10/85
4,557,246 06/633,494 12/10/85
4,557,251 06/580,451 12/10/85
4,557,252 06/648,351 12/10/85
4,557,255 06/525,620 12/10/85
4,557,256 06/633,633 12/10/85
4,557,257 06/515,598 12/10/85
4,557,261 06/328,694 12/10/85
4,557,282 06/526,421 12/10/85
4,557,287 06/664,890 12/10/85
4,557,291 06/654,035 12/10/85
4,557,296 06/611,831 12/10/85
4,557,302 06/331,572 12/10/85
4,557,303 06/633,597 12/10/85
4,557,307 06/584,284 12/10/85
4,557,316 06/625,895 12/10/85
4,557,322 06/629,199 12/10/85
4,557,327 06/531,228 12/10/85
4,557,330 06/740,313 12/10/85
4,557,333 06/533,834 12/10/85
4,557,334 06/640,198 12/10/85
4,557,343 06/638,849 12/10/85
4,557,344 06/645,322 12/10/85
4,557,349 06/521,680 12/10/85
4,557,356 06/605,087 12/10/85
4,557,364 06/688,614 12/10/85
4,557,370 06/590,300 12/10/85
4,557,372 06/640,274 12/10/85
4,557,373 06/586,866 12/10/85
4,557,374 06/351,629 12/10/85
4,557,379 06/608,381 12/10/85
4,557,380 06/632,147 12/10/85
4,557,383 06/675,936 12/10/85
4,557,384 06/681,541 12/10/85
4,557,386 06/508,122 12/10/85
4,557,389 06/494,181 12/10/85
4,557,409 06/591,311 12/10/85
4,557,410 06/527,725 12/10/85
4,557,414 06/283,171 12/10/85
4,557,417 06/675,290 12/10/85
4,557,423 06/632,895 12/10/85
4,557,440 06/524,335 12/10/85
4,557,445 06/602,588 12/10/85
4,557,446 06/433,156 12/10/85
4,557,451 06/648,488 12/10/85
4,557,458 06/582,214 12/10/85
4,557,461 06/628,965 12/10/85
4,557,474 06/622,813 12/10/85
4,557,475 06/385,485 12/10/85
4,557,478 06/612,474 12/10/85
4,557,481 06/676,853 12/10/85
4,557,483 06/644,130 12/10/85
4,557,490 06/614,161 12/10/85
4,557,497 06/468,703 12/10/85
4,557,501 06/634,683 12/10/85
4,557,505 06/568,490 12/10/85
4,557,507 06/533,558 12/10/85
4,557,508 06/599,656 12/10/85
4,557,512 06/592,021 12/10/85
4,557,517 06/525,180 12/10/85
4,557,520 06/651,756 12/10/85
4,557,529 06/446,150 12/10/85
4,557,536 06/588,466 12/10/85
4,557,537 06/612,747 12/10/85
4,557,538 06/515,978 12/10/85
4,557,540 06/571,737 12/10/85
4,557,541 06/623,431 12/10/85
4,557,545 06/598,932 12/10/85
4,557,546 06/523,861 12/10/85
4,557,547 06/457,058 12/10/85
4,557,548 06/670,857 12/10/85
4,557,550 06/437,054 12/10/85
4,557,551 06/536,621 12/10/85
4,557,554 06/540,797 12/10/85
4,557,557 06/546,735 12/10/85
4,557,564 06/570,320 12/10/85
4,557,566 06/362,500 12/10/85
4,557,570 06/535,991 12/10/85
4,557,576 06/618,807 12/10/85
4,557,583 06/527,653 12/10/85
4,557,589 06/547,356 12/10/85
4,557,598 06/448,341 12/10/85
4,557,600 06/413,011 12/10/85
4,557,602 06/481,640 12/10/85
4,557,613 06/473,534 12/10/85
4,557,616 06/561,010 12/10/85
4,557,624 06/530,610 12/10/85
4,557,631 06/526,959 12/10/85
4,557,648 06/467,344 12/10/85
4,557,653 06/641,386 12/10/85
4,557,672 06/570,451 12/10/85
4,557,676 06/550,256 12/10/85
4,557,691 06/642,281 12/10/85
4,557,707 06/598,043 12/10/85
4,557,729 06/613,923 12/10/85
4,557,733 06/667,974 12/10/85
4,557,734 06/638,826 12/10/85
4,557,735 06/581,536 12/10/85
4,557,743 06/646,443 12/10/85
4,557,745 06/669,872 12/10/85
4,557,750 06/422,910 12/10/85
4,557,757 06/613,055 12/10/85
4,557,764 06/648,001 12/10/85
4,557,776 06/696,277 12/10/85
4,557,778 06/561,690 12/10/85
4,557,788 06/626,602 12/10/85
4,557,789 06/353,527 12/10/85
4,557,791 06/618,502 12/10/85
4,557,796 06/636,660 12/10/85
4,557,797 06/616,344 12/10/85
4,557,801 06/642,213 12/10/85
4,557,807 06/691,106 12/10/85
4,557,808 06/498,165 12/10/85
4,557,809 06/722,471 12/10/85
4,557,810 06/679,519 12/10/85
4,557,813 06/648,946 12/10/85
4,557,814 06/629,762 12/10/85
4,557,820 06/613,885 12/10/85
4,557,822 06/453,529 12/10/85
4,557,824 06/575,592 12/10/85
4,557,825 06/634,259 12/10/85
4,557,828 06/444,052 12/10/85
4,557,836 06/332,458 12/10/85
4,557,843 06/696,024 12/10/85
4,557,845 06/561,413 12/10/85
4,557,849 06/630,914 12/10/85
4,557,850 06/367,034 12/10/85
4,557,860 06/628,541 12/10/85
4,557,872 06/542,504 12/10/85
4,557,879 06/653,842 12/10/85
4,557,880 06/475,377 12/10/85
4,557,885 06/619,929 12/10/85
4,557,886 06/619,985 12/10/85
4,557,888 06/541,321 12/10/85
4,557,889 06/639,184 12/10/85
4,557,891 06/371,882 12/10/85
4,557,892 06/467,801 12/10/85
4,557,897 06/585,473 12/10/85
4,557,903 06/533,148 12/10/85
4,557,904 06/593,045 12/10/85
4,557,905 06/649,921 12/10/85
4,557,911 06/625,490 12/10/85
4,557,913 06/640,363 12/10/85
4,557,919 06/598,691 12/10/85
4,557,921 06/625,355 12/10/85
4,557,929 06/574,710 12/10/85
4,557,933 06/627,439 12/10/85
4,557,934 06/506,275 12/10/85
4,557,944 06/656,792 12/10/85
4,557,971 06/612,030 12/10/85
4,557,972 06/678,386 12/10/85
4,557,976 06/526,072 12/10/85
4,557,977 06/645,279 12/10/85
4,557,981 06/578,637 12/10/85
4,557,989 06/650,381 12/10/85
4,557,995 06/311,831 12/10/85
4,557,997 06/614,384 12/10/85
4,558,008 06/561,008 12/10/85
4,558,009 06/565,314 12/10/85
4,558,021 06/582,570 12/10/85
4,558,031 06/460,598 12/10/85
4,558,032 06/509,282 12/10/85
4,558,041 06/620,216 12/10/85
4,558,049 06/493,618 12/10/85
4,558,052 06/618,908 12/10/85
4,558,054 06/628,398 12/10/85
4,558,072 06/552,631 12/10/85
4,558,082 06/608,748 12/10/85
4,558,085 06/642,343 12/10/85
4,558,095 06/718,369 12/10/85
4,558,105 06/558,928 12/10/85
4,558,106 06/480,474 12/10/85
4,558,109 06/634,244 12/10/85
4,558,110 06/697,309 12/10/85
4,558,117 06/615,309 12/10/85
4,558,125 06/612,323 12/10/85
4,558,126 06/672,342 12/10/85
4,558,135 06/324,181 12/10/85
4,558,136 06/746,949 12/10/85
4,558,137 06/501,309 12/10/85
4,558,138 06/718,048 12/10/85
4,558,141 06/722,020 12/10/85
4,558,147 06/527,299 12/10/85
4,558,148 06/635,682 12/10/85
4,558,150 06/680,119 12/10/85
4,558,156 06/632,258 12/10/85
4,558,160 06/603,847 12/10/85
4,558,161 06/588,865 12/10/85
4,558,162 06/607,552 12/10/85
4,558,168 06/746,605 12/10/85
4,558,173 06/412,478 12/10/85
4,558,186 06/529,414 12/10/85
4,558,188 06/563,738 12/10/85
4,558,206 06/533,069 12/10/85
4,558,213 06/499,357 12/10/85
4,558,216 06/445,698 12/10/85
4,558,220 06/307,925 12/10/85
4,558,222 06/542,252 12/10/85
4,558,223 06/345,940 12/10/85
4,558,228 06/509,442 12/10/85
4,558,232 06/350,958 12/10/85
4,558,233 06/467,075 12/10/85
4,558,235 06/528,200 12/10/85
4,558,245 06/598,956 12/10/85
4,558,255 06/605,730 12/10/85
4,558,256 06/502,432 12/10/85
4,558,257 06/565,257 12/10/85
4,558,266 06/590,050 12/10/85
4,558,267 06/489,550 12/10/85
4,558,273 06/500,231 12/10/85
4,558,276 06/494,407 12/10/85
4,558,277 06/474,555 12/10/85
4,558,279 06/472,675 12/10/85
4,558,284 06/588,838 12/10/85
4,558,294 06/601,372 12/10/85
4,558,298 06/473,358 12/10/85
4,558,304 06/469,186 12/10/85
4,558,314 06/454,061 12/10/85
4,558,323 06/681,695 12/10/85
4,558,325 06/441,184 12/10/85
4,558,337 06/615,978 12/10/85
4,558,349 06/452,756 12/10/85
4,558,354 06/521,363 12/10/85
4,558,358 06/382,835 12/10/85
4,558,366 06/666,126 12/10/85
4,558,372 06/571,990 12/10/85
4,558,376 06/323,456 12/10/85
4,558,385 06/647,259 12/10/85
4,558,393 06/604,387 12/10/85
4,558,401 06/658,063 12/10/85
4,558,405 06/575,516 12/10/85
4,558,406 06/540,874 12/10/85
4,558,412 06/557,379 12/10/85
4,558,447 06/470,033 12/10/85
4,558,452 06/642,319 12/10/85
4,558,455 06/535,128 12/10/85
4,558,457 06/547,615 12/10/85
4,884,299 06/709,775 12/05/89
4,884,300 07/243,580 12/05/89
4,884,306 07/307,788 12/05/89
4,884,310 07/208,887 12/05/89
4,884,311 07/199,373 12/05/89
4,884,315 07/131,180 12/05/89
4,884,322 06/363,612 12/05/89
4,884,334 06/826,203 12/05/89
4,884,335 07/217,130 12/05/89
4,884,338 07/220,159 12/05/89
4,884,340 07/305,952 12/05/89
4,884,343 07/243,725 12/05/89
4,884,350 07/227,683 12/05/89
4,884,351 07/200,680 12/05/89
4,884,354 07/316,470 12/05/89
4,884,360 07/173,829 12/05/89
4,884,363 07/281,921 12/05/89
4,884,365 07/329,404 12/05/89
4,884,371 07/306,091 12/05/89
4,884,374 07/103,150 12/05/89
4,884,377 07/320,843 12/05/89
4,884,378 07/220,401 12/05/89
4,884,381 07/249,195 12/05/89
4,884,382 07/195,641 12/05/89
4,884,383 07/211,801 12/05/89
4,884,384 07/035,217 12/05/89
4,884,386 07/275,001 12/05/89
4,884,393 07/136,958 12/05/89
4,884,394 07/161,803 12/05/89
4,884,399 07/315,397 12/05/89
4,884,400 07/167,086 12/05/89
4,884,405 07/171,008 12/05/89
4,884,408 07/295,261 12/05/89
4,884,410 07/234,913 12/05/89
4,884,413 07/322,510 12/05/89
4,884,415 07/250,605 12/05/89
4,884,417 07/162,395 12/05/89
4,884,422 07/150,405 12/05/89
4,884,423 07/216,878 12/05/89
4,884,424 07/347,340 12/05/89
4,884,425 07/317,642 12/05/89
4,884,426 07/199,946 12/05/89
4,884,429 07/117,623 12/05/89
4,884,437 07/229,702 12/05/89
4,884,442 07/328,226 12/05/89
4,884,443 07/137,220 12/05/89
4,884,455 07/304,751 12/05/89
4,884,460 07/278,372 12/05/89
4,884,471 07/210,536 12/05/89
4,884,485 07/330,817 12/05/89
4,884,488 07/297,801 12/05/89
4,884,489 07/041,183 12/05/89
4,884,493 07/214,401 12/05/89
4,884,499 07/185,457 12/05/89
4,884,500 07/321,997 12/05/89
4,884,502 07/206,561 12/05/89
4,884,504 07/142,155 12/05/89
4,884,505 07/166,672 12/05/89
4,884,510 07/249,442 12/05/89
4,884,517 07/335,100 12/05/89
4,884,521 07/041,195 12/05/89
4,884,522 07/197,022 12/05/89
4,884,528 07/155,408 12/05/89
4,884,531 07/213,855 12/05/89
4,884,537 07/157,587 12/05/89
4,884,539 07/133,881 12/05/89
4,884,544 07/180,385 12/05/89
4,884,550 07/278,461 12/05/89
4,884,551 07/283,497 12/05/89
4,884,552 07/160,675 12/05/89
4,884,554 07/227,855 12/05/89
4,884,556 07/274,715 12/05/89
4,884,558 07/123,204 12/05/89
4,884,559 07/128,635 12/05/89
4,884,560 07/217,546 12/05/89
4,884,561 07/055,949 12/05/89
4,884,564 07/223,547 12/05/89
4,884,569 07/162,334 12/05/89
4,884,577 06/750,897 12/05/89
4,884,585 07/260,616 12/05/89
4,884,586 07/276,687 12/05/89
4,884,591 07/239,408 12/05/89
4,884,592 07/321,649 12/05/89
4,884,594 07/308,208 12/05/89
4,884,595 07/341,474 12/05/89
4,884,604 07/190,894 12/05/89
4,884,607 07/200,875 12/05/89
4,884,608 07/187,536 12/05/89
4,884,609 07/104,332 12/05/89
4,884,613 07/231,345 12/05/89
4,884,622 07/241,949 12/05/89
4,884,628 07/260,210 12/05/89
4,884,638 07/346,916 12/05/89
4,884,643 07/297,360 12/05/89
4,884,645 07/323,892 12/05/89
4,884,656 07/274,704 12/05/89
4,884,657 07/311,248 12/05/89
4,884,658 07/261,430 12/05/89
4,884,659 07/277,694 12/05/89
4,884,661 07/300,131 12/05/89
4,884,663 07/228,539 12/05/89
4,884,673 07/328,934 12/05/89
4,884,675 07/069,979 12/05/89
4,884,684 07/190,991 12/05/89
4,884,689 07/315,870 12/05/89
4,884,692 07/311,335 12/05/89
4,884,696 07/170,307 12/05/89
4,884,701 07/310,470 12/05/89
4,884,704 07/316,017 12/05/89
4,884,707 07/303,130 12/05/89
4,884,708 07/259,999 12/05/89
4,884,709 07/294,717 12/05/89
4,884,710 07/242,214 12/05/89
4,884,715 07/255,246 12/05/89
4,884,717 07/325,852 12/05/89
4,884,723 07/363,441 12/05/89
4,884,727 07/303,496 12/05/89
4,884,730 07/345,423 12/05/89
4,884,731 07/214,318 12/05/89
4,884,745 07/025,018 12/05/89
4,884,749 07/211,204 12/05/89
4,884,751 07/181,321 12/05/89
4,884,753 07/275,564 12/05/89
4,884,758 07/132,091 12/05/89
4,884,762 07/271,783 12/05/89
4,884,765 07/208,049 12/05/89
4,884,766 07/198,279 12/05/89
4,884,774 07/213,550 12/05/89
4,884,777 07/227,423 12/05/89
4,884,779 07/268,173 12/05/89
4,884,781 07/323,295 12/05/89
4,884,784 07/185,800 12/05/89
4,884,786 07/235,163 12/05/89
4,884,787 07/197,849 12/05/89
4,884,791 06/765,602 12/05/89
4,884,793 07/065,292 12/05/89
4,884,796 07/198,871 12/05/89
4,884,798 07/166,930 12/05/89
4,884,802 07/268,877 12/05/89
4,884,804 07/144,633 12/05/89
4,884,810 07/276,885 12/05/89
4,884,811 07/265,937 12/05/89
4,884,816 07/172,211 12/05/89
4,884,817 07/344,536 12/05/89
4,884,820 07/051,931 12/05/89
4,884,821 07/261,542 12/05/89
4,884,822 07/302,240 12/05/89
4,884,828 07/152,271 12/05/89
4,884,829 07/095,958 12/05/89
4,884,833 07/251,879 12/05/89
4,884,837 07/187,207 12/05/89
4,884,841 07/209,063 12/05/89
4,884,842 07/229,451 12/05/89
4,884,843 07/341,382 12/05/89
4,884,852 07/261,933 12/05/89
4,884,861 07/154,507 12/05/89
4,884,862 07/258,840 12/05/89
4,884,865 07/224,423 12/05/89
4,884,871 07/231,997 12/05/89
4,884,880 07/243,353 12/05/89
4,884,881 07/243,354 12/05/89
4,884,885 07/113,558 12/05/89
4,884,900 07/294,148 12/05/89
4,884,902 07/263,617 12/05/89
4,884,904 07/131,406 12/05/89
4,884,905 07/158,188 12/05/89
4,884,906 07/160,756 12/05/89
4,884,921 07/244,684 12/05/89
4,884,928 07/282,867 12/05/89
4,884,935 06/860,369 12/05/89
4,884,938 07/256,467 12/05/89
4,884,940 07/322,026 12/05/89
4,884,941 07/031,769 12/05/89
4,884,948 07/174,781 12/05/89
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