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 31, 1997
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Number Serial Number Issue Date
Re. 32,821 07/009,253 01/03/89
(4,562,356) (06/641,835) (12/31/85)
4,561,121 06/651,803 12/31/85
4,561,138 06/566,224 12/31/85
4,561,139 06/572,349 12/31/85
4,561,143 06/632,489 12/31/85
4,561,146 06/539,646 12/31/85
4,561,149 06/293,883 12/31/85
4,561,152 06/572,664 12/31/85
4,561,164 06/577,315 12/31/85
4,561,170 06/626,572 12/31/85
4,561,171 06/481,396 12/31/85
4,561,185 06/594,091 12/31/85
4,561,190 06/557,293 12/31/85
4,561,194 06/672,665 12/31/85
4,561,196 06/376,653 12/31/85
4,561,214 06/355,301 12/31/85
4,561,215 06/593,092 12/31/85
4,561,218 06/699,707 12/31/85
4,561,221 06/503,151 12/31/85
4,561,224 06/571,324 12/31/85
4,561,227 06/601,044 12/31/85
4,561,237 06/648,628 12/31/85
4,561,243 06/561,075 12/31/85
4,561,245 06/735,285 12/31/85
4,561,249 06/426,096 12/31/85
4,561,250 06/346,249 12/31/85
4,561,254 06/664,641 12/31/85
4,561,255 06/507,608 12/31/85
4,561,256 06/554,603 12/31/85
4,561,258 06/694,469 12/31/85
4,561,263 06/660,663 12/31/85
4,561,269 06/614,189 12/31/85
4,561,270 06/558,917 12/31/85
4,561,275 06/497,428 12/31/85
4,561,280 06/571,050 12/31/85
4,561,283 06/529,608 12/31/85
4,561,284 06/604,893 12/31/85
4,561,291 06/639,686 12/31/85
4,561,292 06/740,705 12/31/85
4,561,293 06/535,754 12/31/85
4,561,297 06/581,063 12/31/85
4,561,298 06/626,063 12/31/85
4,561,306 06/666,570 12/31/85
4,561,308 06/589,448 12/31/85
4,561,311 06/576,041 12/31/85
4,561,321 06/553,653 12/31/85
4,561,337 06/611,367 12/31/85
4,561,344 06/582,523 12/31/85
4,561,345 06/664,759 12/31/85
4,561,354 06/658,131 12/31/85
4,561,360 06/617,752 12/31/85
4,561,381 06/564,245 12/31/85
4,561,389 06/697,438 12/31/85
4,561,390 06/741,038 12/31/85
4,561,393 06/620,338 12/31/85
4,561,398 06/619,176 12/31/85
4,561,400 06/643,712 12/31/85
4,561,405 06/682,589 12/31/85
4,561,407 06/605,909 12/31/85
4,561,408 06/573,175 12/31/85
4,561,412 06/650,111 12/31/85
4,561,414 06/626,176 12/31/85
4,561,425 06/574,732 12/31/85
4,561,429 06/540,837 12/31/85
4,561,432 06/532,361 12/31/85
4,561,451 06/410,205 12/31/85
4,561,454 06/620,538 12/31/85
4,561,456 06/570,034 12/31/85
4,561,457 06/585,210 12/31/85
4,561,462 06/696,846 12/31/85
4,561,466 06/439,283 12/31/85
4,561,467 06/665,171 12/31/85
4,561,472 06/591,588 12/31/85
4,561,476 06/659,606 12/31/85
4,561,478 06/595,966 12/31/85
4,561,480 06/654,848 12/31/85
4,561,491 06/671,310 12/31/85
4,561,495 06/645,824 12/31/85
4,561,498 06/591,858 12/31/85
4,561,499 06/639,713 12/31/85
4,561,500 06/561,985 12/31/85
4,561,501 06/508,709 12/31/85
4,561,505 06/502,489 12/31/85
4,561,506 06/512,864 12/31/85
4,561,512 06/613,994 12/31/85
4,561,513 06/622,119 12/31/85
4,561,517 06/476,134 12/31/85
4,561,525 06/549,307 12/31/85
4,561,526 06/453,813 12/31/85
4,561,527 06/575,742 12/31/85
4,561,534 06/658,354 12/31/85
4,561,535 06/581,072 12/31/85
4,561,537 06/524,056 12/31/85
4,561,542 06/674,360 12/31/85
4,561,550 06/533,213 12/31/85
4,561,551 06/526,324 12/31/85
4,561,561 06/650,509 12/31/85
4,561,564 06/643,685 12/31/85
4,561,573 06/410,010 12/31/85
4,561,574 06/592,132 12/31/85
4,561,582 06/401,608 12/31/85
4,561,583 06/605,011 12/31/85
4,561,586 06/646,747 12/31/85
4,561,590 06/453,995 12/31/85
4,561,595 06/495,338 12/31/85
4,561,603 06/694,952 12/31/85
4,561,614 06/447,695 12/31/85
4,561,616 06/625,854 12/31/85
4,561,619 06/578,795 12/31/85
4,561,620 06/604,683 12/31/85
4,561,628 06/645,073 12/31/85
4,561,638 06/687,949 12/31/85
4,561,640 06/586,135 12/31/85
4,561,649 06/540,504 12/31/85
4,561,668 06/597,082 12/31/85
4,561,671 06/491,142 12/31/85
4,561,673 06/560,845 12/31/85
4,561,677 06/581,718 12/31/85
4,561,680 06/756,575 12/31/85
4,561,690 06/524,581 12/31/85
4,561,693 06/503,227 12/31/85
4,561,701 06/541,731 12/31/85
4,561,702 06/608,605 12/31/85
4,561,704 06/584,989 12/31/85
4,561,705 06/486,364 12/31/85
4,561,711 06/685,651 12/31/85
4,561,713 06/528,430 12/31/85
4,561,721 06/564,097 12/31/85
4,561,739 06/740,311 12/31/85
4,561,744 06/673,061 12/31/85
4,561,747 06/620,707 12/31/85
4,561,757 06/708,202 12/31/85
4,561,762 06/560,113 12/31/85
4,561,770 06/624,781 12/31/85
4,561,781 06/615,617 12/31/85
4,561,783 06/717,464 12/31/85
4,561,789 06/623,292 12/31/85
4,561,791 06/746,012 12/31/85
4,561,793 06/586,913 12/31/85
4,561,810 06/560,396 12/31/85
4,561,813 06/501,217 12/31/85
4,561,814 06/281,602 12/31/85
4,561,819 06/580,241 12/31/85
4,561,831 06/596,814 12/31/85
4,561,833 06/482,485 12/31/85
4,561,847 06/599,667 12/31/85
4,561,855 06/416,308 12/31/85
4,561,858 06/491,256 12/31/85
4,561,864 06/660,020 12/31/85
4,561,867 06/679,903 12/31/85
4,561,873 06/677,253 12/31/85
4,561,874 06/648,809 12/31/85
4,561,889 06/545,245 12/31/85
4,561,892 06/617,010 12/31/85
4,561,897 06/641,529 12/31/85
4,561,899 06/673,925 12/31/85
4,561,903 06/672,145 12/31/85
4,561,909 06/551,503 12/31/85
4,561,911 06/645,764 12/31/85
4,561,916 06/627,031 12/31/85
4,561,919 06/641,614 12/31/85
4,561,929 06/696,700 12/31/85
4,561,940 06/629,257 12/31/85
4,561,941 06/444,783 12/31/85
4,561,943 06/628,265 12/31/85
4,561,946 06/637,889 12/31/85
4,561,949 06/526,936 12/31/85
4,561,952 06/590,139 12/31/85
4,561,953 06/622,422 12/31/85
4,561,959 06/559,660 12/31/85
4,561,960 06/668,242 12/31/85
4,561,962 06/674,720 12/31/85
4,561,971 06/664,187 12/31/85
4,561,974 06/576,408 12/31/85
4,561,975 06/468,704 12/31/85
4,561,983 06/638,595 12/31/85
4,561,985 06/392,712 12/31/85
4,561,988 06/666,337 12/31/85
4,561,989 06/635,578 12/31/85
4,561,995 06/363,784 12/31/85
4,562,008 06/459,947 12/31/85
4,562,011 06/555,720 12/31/85
4,562,015 06/612,923 12/31/85
4,562,017 06/532,151 12/31/85
4,562,018 06/695,721 12/31/85
4,562,019 06/636,063 12/31/85
4,562,022 06/490,070 12/31/85
4,562,028 06/610,047 12/31/85
4,562,029 06/696,953 12/31/85
4,562,030 06/543,181 12/31/85
4,562,035 06/320,978 12/31/85
4,562,036 06/526,765 12/31/85
4,562,040 06/721,663 12/31/85
4,562,041 06/512,094 12/31/85
4,562,063 06/680,426 12/31/85
4,562,065 06/680,425 12/31/85
4,562,066 06/680,424 12/31/85
4,562,067 06/570,138 12/31/85
4,562,071 06/498,237 12/31/85
4,562,077 06/543,347 12/31/85
4,562,080 06/634,767 12/31/85
4,562,081 06/600,167 12/31/85
4,562,082 06/589,624 12/31/85
4,562,089 06/663,760 12/31/85
4,562,090 06/556,291 12/31/85
4,562,091 06/668,360 12/31/85
4,562,094 06/719,598 12/31/85
4,562,097 06/556,573 12/31/85
4,562,101 06/489,594 12/31/85
4,562,103 06/434,234 12/31/85
4,562,105 06/595,021 12/31/85
4,562,119 06/641,893 12/31/85
4,562,120 06/640,409 12/31/85
4,562,123 06/649,605 12/31/85
4,562,129 06/534,144 12/31/85
4,562,137 06/454,396 12/31/85
4,562,142 06/655,435 12/31/85
4,562,147 06/503,824 12/31/85
4,562,149 06/463,990 12/31/85
4,562,154 06/522,545 12/31/85
4,562,156 06/512,857 12/31/85
4,562,159 06/249,369 12/31/85
4,562,162 06/665,388 12/31/85
4,562,173 06/675,557 12/31/85
4,562,178 06/683,676 12/31/85
4,562,190 06/627,612 12/31/85
4,562,192 06/576,700 12/31/85
4,562,193 06/512,144 12/31/85
4,562,194 06/636,204 12/31/85
4,562,196 06/597,732 12/31/85
4,562,201 06/401,751 12/31/85
4,562,206 06/587,444 12/31/85
4,562,208 06/466,694 12/31/85
4,562,213 06/491,727 12/31/85
4,562,222 06/683,659 12/31/85
4,562,228 06/727,200 12/31/85
4,562,230 06/550,764 12/31/85
4,562,232 06/685,378 12/31/85
4,562,235 06/601,439 12/31/85
4,562,242 06/685,907 12/31/85
4,562,247 06/614,909 12/31/85
4,562,249 06/707,548 12/31/85
4,562,256 06/641,822 12/31/85
4,562,267 06/542,241 12/31/85
4,562,271 06/652,921 12/31/85
4,562,272 06/248,268 12/31/85
4,562,275 06/592,987 12/31/85
4,562,282 06/745,639 12/31/85
4,562,283 06/681,593 12/31/85
4,562,288 06/574,092 12/31/85
4,562,289 06/714,731 12/31/85
4,562,292 06/524,528 12/31/85
4,562,299 06/680,833 12/31/85
4,562,310 06/594,931 12/31/85
4,562,315 06/652,802 12/31/85
4,562,316 06/618,265 12/31/85
4,562,317 06/635,530 12/31/85
4,562,320 06/216,498 12/31/85
4,562,324 06/594,714 12/31/85
4,562,328 06/648,684 12/31/85
4,562,336 06/576,901 12/31/85
4,562,338 06/514,271 12/31/85
4,562,353 06/616,984 12/31/85
4,562,360 06/432,809 12/31/85
4,562,371 06/677,713 12/31/85
4,562,376 06/513,316 12/31/85
4,562,379 06/501,093 12/31/85
4,562,391 06/618,191 12/31/85
4,562,392 06/645,273 12/31/85
4,562,398 06/575,527 12/31/85
4,562,400 06/527,749 12/31/85
4,562,407 06/616,161 12/31/85
4,562,409 06/593,429 12/31/85
4,562,421 06/462,537 12/31/85
4,562,425 06/459,504 12/31/85
4,562,434 06/399,799 12/31/85
4,562,437 06/453,112 12/31/85
4,562,438 06/305,343 12/31/85
4,562,440 06/564,663 12/31/85
4,562,446 06/592,573 12/31/85
4,562,449 06/679,416 12/31/85
4,562,451 06/727,623 12/31/85
4,562,454 06/566,766 12/31/85
4,562,460 06/487,082 12/31/85
4,562,466 06/516,707 12/31/85
4,562,472 06/556,447 12/31/85
4,562,478 06/466,209 12/31/85
4,562,486 06/496,660 12/31/85
4,562,487 06/567,252 12/31/85
4,562,488 06/509,176 12/31/85
4,562,499 06/395,028 12/31/85
4,562,506 06/580,029 12/31/85
4,562,507 06/573,137 12/31/85
4,562,513 06/707,987 12/31/85
4,562,518 06/615,464 12/31/85
4,562,526 06/671,795 12/31/85
4,562,535 06/365,813 12/31/85
4,562,537 06/599,911 12/31/85
4,562,544 06/507,056 12/31/85
4,562,568 06/416,420 12/31/85
4,562,575 06/511,701 12/31/85
4,562,579 06/435,505 12/31/85
4,562,584 06/446,052 12/31/85
4,562,587 06/562,312 12/31/85
4,562,588 06/441,042 12/31/85
4,562,591 06/576,588 12/31/85
4,562,592 06/567,201 12/31/85
4,888,834 07/159,192 12/26/89
4,888,836 07/335,896 12/26/89
4,888,838 07/223,620 12/26/89
4,888,839 07/281,284 12/26/89
4,888,847 07/183,725 12/26/89
4,888,852 07/054,589 12/26/89
4,888,858 07/365,685 12/26/89
4,888,861 06/786,384 12/26/89
4,888,874 07/218,980 12/26/89
4,888,875 07/118,855 12/26/89
4,888,876 07/272,710 12/26/89
4,888,887 07/354,740 12/26/89
4,888,888 07/184,416 12/26/89
4,888,896 07/067,935 12/26/89
4,888,902 07/360,532 12/26/89
4,888,906 07/341,222 12/26/89
4,888,912 07/217,927 12/26/89
4,888,913 07/154,586 12/26/89
4,888,918 07/310,791 12/26/89
4,888,924 07/304,424 12/26/89
4,888,929 07/269,131 12/26/89
4,888,932 07/355,703 12/26/89
4,888,934 07/152,461 12/26/89
4,888,935 07/224,762 12/26/89
4,888,936 07/302,458 12/26/89
4,888,942 07/195,515 12/26/89
4,888,944 07/170,410 12/26/89
4,888,945 07/173,354 12/26/89
4,888,950 07/371,278 12/26/89
4,888,951 07/376,231 12/26/89
4,888,956 07/144,121 12/26/89
4,888,958 07/277,792 12/26/89
4,888,962 07/294,306 12/26/89
4,888,973 07/240,595 12/26/89
4,888,975 07/182,935 12/26/89
4,888,977 07/301,537 12/26/89
4,888,979 07/310,556 12/26/89
4,888,988 07/137,299 12/26/89
4,888,989 06/833,942 12/26/89
4,888,993 07/251,227 12/26/89
4,888,996 07/136,911 12/26/89
4,889,002 07/180,161 12/26/89
4,889,003 07/135,887 12/26/89
4,889,007 07/369,186 12/26/89
4,889,012 07/254,065 12/26/89
4,889,022 07/166,925 12/26/89
4,889,023 06/924,443 12/26/89
4,889,034 07/212,894 12/26/89
4,889,042 07/246,660 12/26/89
4,889,046 07/302,405 12/26/89
4,889,048 07/181,100 12/26/89
4,889,051 07/224,071 12/26/89
4,889,055 07/339,230 12/26/89
4,889,062 07/268,111 12/26/89
4,889,073 06/822,430 12/26/89
4,889,075 07/241,175 12/26/89
4,889,078 06/838,663 12/26/89
4,889,084 07/311,803 12/26/89
4,889,086 07/343,288 12/26/89
4,889,091 07/255,282 12/26/89
4,889,093 07/267,478 12/26/89
4,889,101 07/244,344 12/26/89
4,889,108 07/325,529 12/26/89
4,889,118 07/208,670 12/26/89
4,889,122 07/180,346 12/26/89
4,889,123 07/262,050 12/26/89
4,889,125 07/058,954 12/26/89
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4,889,140 06/510,400 12/26/89
4,889,142 07/366,203 12/26/89
4,889,143 06/863,222 12/26/89
4,889,145 07/187,449 12/26/89
4,889,151 07/266,524 12/26/89
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4,889,170 06/874,099 12/26/89
4,889,175 07/171,825 12/26/89
4,889,176 07/249,571 12/26/89
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4,889,182 06/711,927 12/26/89
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4,889,186 07/186,046 12/26/89
4,889,188 07/207,209 12/26/89
4,889,197 07/213,287 12/26/89
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4,889,210 07/200,731 12/26/89
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4,889,239 06/526,319 12/26/89
4,889,240 07/244,696 12/26/89
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4,889,266 07/259,354 12/26/89
4,889,270 07/159,775 12/26/89
4,889,272 07/307,514 12/26/89
4,889,276 07/267,999 12/26/89
4,889,277 07/011,143 12/26/89
4,889,289 07/191,049 12/26/89
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4,889,304 07/200,931 12/26/89
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4,889,315 07/276,983 12/26/89
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4,889,320 07/209,831 12/26/89
4,889,329 07/238,908 12/26/89
4,889,336 07/277,205 12/26/89
4,889,340 06/907,845 12/26/89
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4,889,343 07/271,435 12/26/89
4,889,352 07/240,543 12/26/89
4,889,354 07/135,331 12/26/89
4,889,356 07/296,013 12/26/89
4,889,358 07/244,085 12/26/89
4,889,363 07/278,012 12/26/89
4,889,364 07/188,327 12/26/89
4,889,367 07/254,845 12/26/89
4,889,371 07/119,884 12/26/89
4,889,372 07/193,844 12/26/89
4,889,375 07/245,576 12/26/89
4,889,376 07/286,705 12/26/89
4,889,379 07/150,149 12/26/89
4,889,381 07/173,360 12/26/89
4,889,382 07/303,989 12/26/89
4,889,409 07/156,185 12/26/89
4,889,411 07/335,262 12/26/89
4,889,417 06/833,342 12/26/89
4,889,425 07/115,202 12/26/89
4,889,426 07/260,830 12/26/89
4,889,427 07/180,156 12/26/89
4,889,429 07/154,062 12/26/89
4,889,431 07/234,900 12/26/89
4,889,436 07/329,373 12/26/89
4,889,437 07/219,798 12/26/89
4,889,439 07/149,805 12/26/89
4,889,448 07/319,660 12/26/89
4,889,449 07/247,150 12/26/89
4,889,460 07/222,561 12/26/89
4,889,461 07/216,663 12/26/89
4,889,465 07/212,294 12/26/89
4,889,466 07/044,942 12/26/89
4,889,472 07/185,521 12/26/89
4,889,473 07/299,130 12/26/89
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