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 ON April 28, 1999
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Application Issue
Number Number Date
4,660,231 06/852,057 04/28/87
4,660,233 06/816,828 04/28/87
4,660,240 06/733,701 04/28/87
4,660,242 06/842,967 04/28/87
4,660,263 06/771,336 04/28/87
4,660,267 06/798,829 04/28/87
4,660,270 06/729,398 04/28/87
4,660,272 06/879,374 04/28/87
4,660,278 06/749,952 04/28/87
4,660,281 06/745,602 04/28/87
4,660,293 06/786,071 04/28/87
4,660,294 06/797,532 04/28/87
4,660,297 06/793,984 04/28/87
4,660,300 06/775,566 04/28/87
4,660,324 06/771,272 04/28/87
4,660,327 06/769,165 04/28/87
4,660,334 06/783,088 04/28/87
4,660,344 06/548,149 04/28/87
4,660,351 06/898,759 04/28/87
4,660,357 06/815,292 04/28/87
4,660,364 06/757,492 04/28/87
4,660,366 06/783,302 04/28/87
4,660,367 06/584,820 04/28/87
4,660,369 06/692,057 04/28/87
4,660,375 06/753,700 04/28/87
4,660,379 06/809,973 04/28/87
4,660,380 06/560,426 04/28/87
4,660,381 06/716,995 04/28/87
4,660,382 06/706,626 04/28/87
4,660,384 06/855,741 04/28/87
4,660,401 06/849,067 04/28/87
4,660,403 06/811,136 04/28/87
4,660,415 06/750,785 04/28/87
4,660,416 06/818,331 04/28/87
4,660,423 06/853,582 04/28/87
4,660,435 06/267,323 04/28/87
4,660,442 06/733,517 04/28/87
4,660,444 06/871,933 04/28/87
4,660,447 06/748,498 04/28/87
4,660,452 06/792,471 04/28/87
4,660,459 06/834,158 04/28/87
4,660,461 06/752,716 04/28/87
4,660,472 06/785,187 04/28/87
4,660,474 06/690,879 04/28/87
4,660,481 06/860,056 04/28/87
4,660,484 06/834,951 04/28/87
4,660,487 06/788,102 04/28/87
4,660,490 06/824,073 04/28/87
4,660,503 06/837,973 04/28/87
4,660,504 06/833,432 04/28/87
4,660,507 06/793,308 04/28/87
4,660,509 06/874,675 04/28/87
4,660,510 06/636,438 04/28/87
4,660,514 06/715,479 04/28/87
4,660,519 06/630,479 04/28/87
4,660,520 06/853,873 04/28/87
4,660,521 06/842,322 04/28/87
4,660,528 06/840,010 04/28/87
4,660,531 06/395,877 04/28/87
4,660,534 06/749,891 04/28/87
4,660,535 06/749,441 04/28/87
4,660,541 06/904,795 04/28/87
4,660,552 06/650,535 04/28/87
4,660,554 06/789,498 04/28/87
4,660,555 06/798,519 04/28/87
4,660,556 06/701,558 04/28/87
4,660,564 06/718,429 04/28/87
4,660,567 06/726,764 04/28/87
4,660,581 06/627,569 04/28/87
4,660,586 06/684,619 04/28/87
4,660,592 06/842,656 04/28/87
4,660,594 06/762,916 04/28/87
4,660,598 06/818,210 04/28/87
4,660,600 06/259,594 04/28/87
4,660,608 06/786,309 04/28/87
4,660,611 06/761,212 04/28/87
4,660,618 06/764,131 04/28/87
4,660,620 06/763,769 04/28/87
4,660,628 06/852,948 04/28/87
4,660,633 06/735,573 04/28/87
4,660,645 06/776,174 04/28/87
4,660,657 06/789,388 04/28/87
4,660,661 06/704,619 04/28/87
4,660,668 06/789,766 04/28/87
4,660,669 06/755,024 04/28/87
4,660,670 06/859,213 04/28/87
4,660,680 06/693,965 04/28/87
4,660,684 06/908,877 04/28/87
4,660,686 06/648,291 04/28/87
4,660,688 06/685,460 04/28/87
4,660,690 06/661,836 04/28/87
4,660,691 06/729,392 04/28/87
4,660,692 06/711,148 04/28/87
4,660,696 06/732,766 04/28/87
4,660,708 06/602,387 04/28/87
4,660,709 06/705,791 04/28/87
4,660,710 06/815,840 04/28/87
4,660,712 06/744,327 04/28/87
4,660,713 06/774,587 04/28/87
4,660,727 06/885,316 04/28/87
4,660,733 06/626,464 04/28/87
4,660,735 06/845,699 04/28/87
4,660,737 06/847,359 04/28/87
4,660,738 06/822,865 04/28/87
4,660,739 06/709,334 04/28/87
4,660,741 06/737,413 04/28/87
4,660,765 06/752,069 04/28/87
4,660,769 06/524,610 04/28/87
4,660,774 06/737,823 04/28/87
4,660,775 06/745,183 04/28/87
4,660,776 06/786,547 04/28/87
4,660,777 06/590,081 04/28/87
4,660,789 06/743,309 04/28/87
4,660,790 06/802,023 04/28/87
4,660,791 06/700,283 04/28/87
4,660,795 06/760,906 04/28/87
4,660,796 06/602,368 04/28/87
4,660,797 06/805,981 04/28/87
4,660,800 06/793,175 04/28/87
4,660,819 06/654,702 04/28/87
4,660,820 06/647,305 04/28/87
4,660,821 06/760,968 04/28/87
4,660,835 06/792,508 04/28/87
4,660,844 06/684,057 04/28/87
4,660,848 06/748,085 04/28/87
4,660,850 06/786,478 04/28/87
4,660,852 06/771,729 04/28/87
4,660,863 06/758,370 04/28/87
4,660,868 06/804,162 04/28/87
4,660,869 06/807,652 04/28/87
4,660,872 06/806,987 04/28/87
4,660,879 06/729,856 04/28/87
4,660,895 06/851,883 04/28/87
4,660,899 06/781,889 04/28/87
4,660,903 06/750,268 04/28/87
4,660,906 06/910,805 04/28/87
4,660,911 06/806,141 04/28/87
4,660,917 06/811,977 04/28/87
4,660,918 06/797,110 04/28/87
4,660,919 06/785,256 04/28/87
4,660,923 06/843,810 04/28/87
4,660,926 06/657,241 04/28/87
4,660,927 06/524,089 04/28/87
4,660,930 06/844,052 04/28/87
4,660,932 06/630,545 04/28/87
4,660,935 06/704,106 04/28/87
4,660,944 06/796,295 04/28/87
4,660,961 06/617,969 04/28/87
4,660,967 06/592,119 04/28/87
4,660,968 06/721,375 04/28/87
4,660,972 06/710,832 04/28/87
4,660,985 06/786,627 04/28/87
4,660,990 06/763,616 04/28/87
4,660,993 06/768,836 04/28/87
4,660,996 06/818,348 04/28/87
4,661,005 06/570,747 04/28/87
4,661,006 06/818,953 04/28/87
4,661,013 06/751,332 04/28/87
4,661,016 06/722,087 04/28/87
4,661,022 06/797,937 04/28/87
4,661,029 06/812,589 04/28/87
4,661,032 06/810,263 04/28/87
4,661,049 06/768,850 04/28/87
4,661,070 06/840,194 04/28/87
4,661,079 06/749,049 04/28/87
4,661,085 06/773,645 04/28/87
4,661,088 06/787,095 04/28/87
4,661,090 06/641,958 04/28/87
4,661,092 06/559,783 04/28/87
4,661,096 06/773,876 04/28/87
4,661,098 06/784,186 04/28/87
4,661,103 06/835,369 04/28/87
4,661,112 06/707,571 04/28/87
4,661,117 06/669,355 04/28/87
4,661,125 06/734,511 04/28/87
4,661,132 06/765,782 04/28/87
4,661,138 06/735,287 04/28/87
4,661,144 06/814,839 04/28/87
4,661,146 06/683,633 04/28/87
4,661,155 06/865,477 04/28/87
4,661,156 06/783,718 04/28/87
4,661,157 06/796,921 04/28/87
4,661,162 06/600,308 04/28/87
4,661,167 06/677,343 04/28/87
4,661,172 06/584,856 04/28/87
4,661,192 06/768,262 04/28/87
4,661,193 06/771,052 04/28/87
4,661,194 06/799,766 04/28/87
4,661,195 06/620,169 04/28/87
4,661,196 06/663,909 04/28/87
4,661,197 06/772,576 04/28/87
4,661,207 06/802,137 04/28/87
4,661,208 06/747,279 04/28/87
4,661,209 06/891,576 04/28/87
4,661,214 06/807,676 04/28/87
4,661,216 06/854,451 04/28/87
4,661,220 06/746,339 04/28/87
4,661,223 06/804,324 04/28/87
4,661,225 06/743,180 04/28/87
4,661,227 06/772,540 04/28/87
4,661,230 06/886,095 04/28/87
4,661,231 06/792,860 04/28/87
4,661,234 06/812,907 04/28/87
4,661,237 06/480,177 04/28/87
4,661,244 06/748,352 04/28/87
4,661,254 06/737,376 04/28/87
4,661,259 06/761,640 04/28/87
4,661,268 06/812,121 04/28/87
4,661,278 06/817,209 04/28/87
4,661,280 06/725,455 04/28/87
4,661,282 06/748,271 04/28/87
4,661,290 06/731,372 04/28/87
4,661,291 06/764,686 04/28/87
4,661,295 06/620,454 04/28/87
4,661,314 06/818,857 04/28/87
4,661,315 06/829,306 04/28/87
4,661,322 06/623,907 04/28/87
4,661,325 06/699,863 04/28/87
4,661,329 06/799,574 04/28/87
4,661,339 06/707,958 04/28/87
4,661,350 06/881,864 04/28/87
4,661,351 06/605,939 04/28/87
4,661,356 06/676,093 04/28/87
4,661,357 06/636,801 04/28/87
4,661,362 06/812,227 04/28/87
4,661,366 06/757,306 04/28/87
4,661,368 06/777,262 04/28/87
4,661,369 06/772,815 04/28/87
4,661,371 06/839,088 04/28/87
4,661,376 06/813,987 04/28/87
4,661,379 06/797,919 04/28/87
4,661,402 06/647,849 04/28/87
4,661,410 06/764,620 04/28/87
4,661,413 06/705,397 04/28/87
4,661,417 06/687,754 04/28/87
4,661,425 06/688,079 04/28/87
4,661,429 06/856,543 04/28/87
4,661,431 06/848,669 04/28/87
4,661,435 06/828,093 04/28/87
4,661,449 06/634,714 04/28/87
4,661,455 06/819,762 04/28/87
4,661,461 06/740,444 04/28/87
4,661,471 06/599,477 04/28/87
4,661,474 06/807,485 04/28/87
4,661,486 06/649,499 04/28/87
4,661,495 06/769,076 04/28/87
4,661,500 06/770,440 04/28/87
4,661,501 06/833,675 04/28/87
4,661,502 06/578,958 04/28/87
4,661,504 06/667,924 04/28/87
4,661,506 06/677,131 04/28/87
4,661,517 06/874,926 04/28/87
4,661,520 06/641,809 04/28/87
4,661,526 06/662,293 04/28/87
4,661,530 06/597,160 04/28/87
4,661,535 06/753,217 04/28/87
4,661,537 06/753,976 04/28/87
4,661,542 06/823,666 04/28/87
4,661,547 06/796,461 04/28/87
4,661,553 06/831,958 04/28/87
4,661,554 06/814,475 04/28/87
4,661,556 06/737,601 04/28/87
4,661,557 06/749,542 04/28/87
4,661,559 06/690,405 04/28/87
4,661,563 06/589,223 04/28/87
4,661,565 06/840,107 04/28/87
4,661,581 06/656,325 04/28/87
4,661,584 06/814,795 04/28/87
4,661,586 06/557,655 04/28/87
4,661,592 06/625,061 04/28/87
4,661,594 06/702,994 04/28/87
4,661,602 06/717,981 04/28/87
4,661,612 06/797,649 04/28/87
4,661,618 06/606,347 04/28/87
4,661,622 06/824,663 04/28/87
4,661,627 06/897,904 04/28/87
4,661,641 06/614,607 04/28/87
4,661,645 06/836,902 04/28/87
4,661,649 06/773,357 04/28/87
4,661,661 06/855,240 04/28/87
4,661,666 06/865,895 04/28/87
4,661,668 06/782,477 04/28/87
4,661,669 06/838,786 04/28/87
4,661,670 06/815,531 04/28/87
4,661,681 06/915,581 04/28/87
4,661,683 06/816,836 04/28/87
4,661,687 06/732,527 04/28/87
4,661,691 06/548,013 04/28/87
4,661,702 06/664,196 04/28/87
4,661,704 06/754,100 04/28/87
4,661,707 06/763,163 04/28/87
4,661,711 06/765,059 04/28/87
4,661,716 06/704,580 04/28/87
4,661,718 06/742,060 04/28/87
4,661,720 06/872,308 04/28/87
4,661,724 06/731,199 04/28/87
4,661,725 06/699,108 04/28/87
4,661,726 06/793,379 04/28/87
4,661,729 06/827,125 04/28/87
4,661,730 06/717,081 04/28/87
4,661,736 06/767,586 04/28/87
4,661,742 06/673,424 04/28/87
4,661,744 06/585,292 04/28/87
4,661,746 06/741,061 04/28/87
4,661,761 06/700,262 04/28/87
4,661,763 06/698,845 04/28/87
4,661,765 06/735,433 04/28/87
4,661,766 06/812,677 04/28/87
4,661,776 06/843,933 04/28/87
4,661,781 06/703,146 04/28/87
4,661,786 06/600,992 04/28/87
4,661,788 06/732,607 04/28/87
4,661,795 06/895,290 04/28/87
4,661,798 06/687,413 04/28/87
4,661,805 06/908,007 04/28/87
4,661,813 06/692,793 04/28/87
4,661,817 06/668,372 04/28/87
4,661,818 06/543,066 04/28/87
4,661,827 06/835,421 04/28/87
4,661,839 06/722,364 04/28/87
4,661,842 06/753,573 04/28/87
4,661,845 06/685,309 04/28/87
4,661,850 06/824,902 04/28/87
4,661,853 06/794,222 04/28/87
4,661,861 06/741,290 04/28/87
4,661,863 06/596,296 04/28/87
4,661,865 06/615,791 04/28/87
4,661,866 06/741,054 04/28/87
4,661,881 06/651,482 04/28/87
4,661,887 06/793,414 04/28/87
4,661,899 06/744,007 04/28/87
4,661,901 06/452,526 04/28/87
4,661,909 06/553,784 04/28/87
4,661,911 06/696,904 04/28/87
4,661,914 06/618,034 04/28/87
4,661,923 06/665,815 04/28/87
4,661,931 06/762,341 04/28/87
4,661,937 06/718,407 04/28/87
4,661,940 06/649,887 04/28/87
4,661,946 06/738,763 04/28/87
4,661,955 06/692,804 04/28/87
4,661,956 06/703,917 04/28/87
4,661,957 06/660,127 04/28/87
4,661,959 06/701,514 04/28/87
4,661,966 06/777,021 04/28/87
4,661,969 06/730,082 04/28/87
4,661,973 06/677,405 04/28/87
4,661,982 06/715,949 04/28/87
4,661,989 06/781,109 04/28/87
4,661,992 06/760,854 04/28/87
PATENTS WHICH EXPIRED ON April 23, 1999
DUE TO FAILURE TO PAY MAINTENANCE FEES
5,008,959 07/486,374 04/23/91
5,008,961 07/382,259 04/23/91
5,008,964 07/477,465 04/23/91
5,008,975 07/535,064 04/23/91
5,008,982 07/584,361 04/23/91
5,008,983 07/451,801 04/23/91
5,008,988 07/409,857 04/23/91
5,008,990 07/501,015 04/23/91
5,008,995 07/547,829 04/23/91
5,009,004 07/562,557 04/23/91
5,009,005 07/451,114 04/23/91
5,009,034 07/468,705 04/23/91
5,009,048 07/394,353 04/23/91
5,009,056 07/457,889 04/23/91
5,009,057 07/116,001 04/23/91
5,009,059 07/570,747 04/23/91
5,009,063 07/433,342 04/23/91
5,009,066 07/434,394 04/23/91
5,009,067 07/254,402 04/23/91
5,009,069 07/571,988 04/23/91
5,009,071 07/421,051 04/23/91
5,009,078 07/483,654 04/23/91
5,009,093 07/610,337 04/23/91
5,009,096 07/454,757 04/23/91
5,009,099 07/349,201 04/23/91
5,009,100 07/437,687 04/23/91
5,009,104 07/443,637 04/23/91
5,009,106 07/376,010 04/23/91
5,009,111 07/239,365 04/23/91
5,009,117 07/502,196 04/23/91
5,009,118 07/502,198 04/23/91
5,009,122 07/461,032 04/23/91
5,009,130 07/449,993 04/23/91
5,009,149 07/452,239 04/23/91
5,009,150 07/303,858 04/23/91
5,009,160 07/400,694 04/23/91
5,009,175 07/469,228 04/23/91
5,009,177 07/410,789 04/23/91
5,009,178 07/437,454 04/23/91
5,009,179 07/498,920 04/23/91
5,009,183 07/450,322 04/23/91
5,009,188 07/555,568 04/23/91
5,009,190 07/393,575 04/23/91
5,009,193 07/413,162 04/23/91
5,009,199 07/535,000 04/23/91
5,009,201 07/547,863 04/23/91
5,009,205 07/432,998 04/23/91
5,009,215 07/552,796 04/23/91
5,009,217 07/506,220 04/23/91
5,009,220 07/440,105 04/23/91
5,009,223 07/415,623 04/23/91
5,009,225 07/443,916 04/23/91
5,009,228 07/371,623 04/23/91
5,009,229 07/446,594 04/23/91
5,009,233 07/295,272 04/23/91
5,009,241 07/529,741 04/23/91
5,009,250 07/503,396 04/23/91
5,009,252 07/519,518 04/23/91
5,009,260 07/351,599 04/23/91
5,009,270 07/480,587 04/23/91
5,009,271 07/552,921 04/23/91
5,009,277 07/495,330 04/23/91
5,009,279 06/918,125 04/23/91
5,009,283 07/484,220 04/23/91
5,009,284 07/550,057 04/23/91
5,009,285 07/525,824 04/23/91
5,009,288 07/436,269 04/23/91
5,009,293 07/448,847 04/23/91
5,009,296 07/366,195 04/23/91
5,009,299 07/472,721 04/23/91
5,009,302 07/490,885 04/23/91
5,009,306 07/367,758 04/23/91
5,009,315 07/545,820 04/23/91
5,009,325 07/478,262 04/23/91
5,009,336 07/518,372 04/23/91
5,009,337 07/345,771 04/23/91
5,009,340 07/263,358 04/23/91
5,009,342 07/393,292 04/23/91
5,009,349 07/376,853 04/23/91
5,009,356 07/461,679 04/23/91
5,009,369 07/481,099 04/23/91
5,009,370 07/350,339 04/23/91
5,009,371 07/423,439 04/23/91
5,009,372 07/347,388 04/23/91
5,009,380 07/534,298 04/23/91
5,009,384 07/545,602 04/23/91
5,009,386 07/360,072 04/23/91
5,009,387 07/306,168 04/23/91
5,009,389 07/480,578 04/23/91
5,009,394 07/509,881 04/23/91
5,009,398 07/448,002 04/23/91
5,009,402 07/367,682 04/23/91
5,009,418 07/356,534 04/23/91
5,009,422 07/438,862 04/23/91
5,009,432 07/590,724 04/23/91
5,009,439 07/216,754 04/23/91
5,009,443 07/458,221 04/23/91
5,009,444 07/410,370 04/23/91
5,009,445 07/416,720 04/23/91
5,009,448 07/343,820 04/23/91
5,009,452 07/511,363 04/23/91
5,009,455 07/446,507 04/23/91
5,009,456 07/472,202 04/23/91
5,009,471 07/454,689 04/23/91
5,009,490 07/363,825 04/23/91
5,009,496 07/324,202 04/23/91
5,009,497 07/185,217 04/23/91
5,009,501 07/365,164 04/23/91
5,009,508 07/498,716 04/23/91
5,009,512 07/521,012 04/23/91
5,009,517 07/474,170 04/23/91
5,009,536 07/535,328 04/23/91
5,009,541 07/470,394 04/23/91
5,009,543 07/385,247 04/23/91
5,009,548 07/470,949 04/23/91
5,009,552 07/493,492 04/23/91
5,009,557 07/496,022 04/23/91
5,009,563 07/366,880 04/23/91
5,009,564 07/415,719 04/23/91
5,009,568 07/551,144 04/23/91
5,009,569 07/382,908 04/23/91
5,009,571 07/460,832 04/23/91
5,009,580 07/572,224 04/23/91
5,009,591 07/472,532 04/23/91
5,009,592 07/427,496 04/23/91
5,009,608 07/553,217 04/23/91
5,009,610 07/422,147 04/23/91
5,009,611 07/527,464 04/23/91
5,009,616 07/450,784 04/23/91
5,009,619 07/402,521 04/23/91
5,009,620 07/529,188 04/23/91
5,009,621 07/326,024 04/23/91
5,009,630 07/411,555 04/23/91
5,009,632 07/324,316 04/23/91
5,009,657 07/450,743 04/23/91
5,009,670 07/352,418 04/23/91
5,009,677 07/546,958 04/23/91
5,009,679 07/529,078 04/23/91
5,009,687 07/416,212 04/23/91
5,009,690 07/490,895 04/23/91
5,009,697 07/127,161 04/23/91
5,009,698 07/345,217 04/23/91
5,009,706 07/554,109 04/23/91
5,009,710 07/428,432 04/23/91
5,009,717 07/550,879 04/23/91
5,009,723 07/375,460 04/23/91
5,009,728 07/464,076 04/23/91
5,009,739 07/507,077 04/23/91
5,009,745 07/596,807 04/23/91
5,009,746 07/596,819 04/23/91
5,009,750 07/436,638 04/23/91
5,009,751 07/293,791 04/23/91
5,009,753 07/423,224 04/23/91
5,009,754 07/482,920 04/23/91
5,009,756 07/527,587 04/23/91
5,009,758 07/233,180 04/23/91
5,009,759 07/411,373 04/23/91
5,009,763 07/341,869 04/23/91
5,009,767 07/410,434 04/23/91
5,009,775 07/531,767 04/23/91
5,009,780 07/383,127 04/23/91
5,009,785 07/310,279 04/23/91
5,009,787 07/286,234 04/23/91
5,009,788 07/504,478 04/23/91
5,009,793 07/462,580 04/23/91
5,009,794 07/352,259 04/23/91
5,009,796 06/843,055 04/23/91
5,009,798 07/336,592 04/23/91
5,009,799 07/155,861 04/23/91
5,009,800 07/537,225 04/23/91
5,009,801 07/398,542 04/23/91
5,009,805 07/424,084 04/23/91
5,009,813 07/344,443 04/23/91
5,009,814 07/262,257 04/23/91
5,009,821 07/314,767 04/23/91
5,009,823 07/574,554 04/23/91
5,009,826 07/345,914 04/23/91
5,009,831 07/363,828 04/23/91
5,009,834 07/567,026 04/23/91
5,009,845 07/446,569 04/23/91
5,009,850 07/518,311 04/23/91
5,009,851 07/312,272 04/23/91
5,009,853 07/512,637 04/23/91
5,009,858 07/487,439 04/23/91
5,009,861 07/229,950 04/23/91
5,009,869 07/138,441 04/23/91
5,009,871 07/144,695 04/23/91
5,009,873 07/471,778 04/23/91
5,009,882 07/526,930 04/23/91
5,009,887 07/388,023 04/23/91
5,009,895 07/473,801 04/23/91
5,009,896 07/416,902 04/23/91
5,009,900 07/415,867 04/23/91
5,009,903 07/151,405 04/23/91
5,009,904 07/590,963 04/23/91
5,009,905 07/486,290 04/23/91
5,009,910 07/477,344 04/23/91
5,009,913 07/400,391 04/23/91
5,009,918 07/516,052 04/23/91
5,009,923 07/544,800 04/23/91
5,009,926 07/522,126 04/23/91
5,009,930 07/448,033 04/23/91
5,009,935 07/406,076 04/23/91
5,009,954 07/506,495 04/23/91
5,009,956 07/333,829 04/23/91
5,009,965 07/251,024 04/23/91
5,009,966 07/409,541 04/23/91
5,009,968 07/405,251 04/23/91
5,009,978 07/447,854 04/23/91
5,009,979 07/425,546 04/23/91
5,009,984 07/372,856 04/23/91
5,009,986 07/466,545 04/23/91
5,009,990 07/440,463 04/23/91
5,009,995 07/166,660 04/23/91
5,009,996 06/537,947 04/23/91
5,010,006 07/231,221 04/23/91
5,010,007 07/492,031 04/23/91
5,010,008 07/282,644 04/23/91
5,010,009 07/477,884 04/23/91
5,010,010 07/393,851 04/23/91
5,010,021 07/146,419 04/23/91
5,010,028 07/458,936 04/23/91
5,010,030 07/428,721 04/23/91
5,010,035 07/197,582 04/23/91
5,010,036 07/511,588 04/23/91
5,010,037 07/257,758 04/23/91
5,010,039 07/351,993 04/23/91
5,010,042 07/288,965 04/23/91
5,010,045 07/360,561 04/23/91
5,010,049 07/328,338 04/23/91
5,010,050 07/339,746 04/23/91
5,010,052 07/368,087 04/23/91
5,010,058 07/369,932 04/23/91
5,010,059 07/210,838 04/23/91
5,010,064 07/201,038 04/23/91
5,010,075 07/505,379 04/23/91
5,010,077 07/188,145 04/23/91
5,010,086 07/564,011 04/23/91
5,010,087 07/381,330 04/23/91
5,010,088 07/398,219 04/23/91
5,010,091 07/477,272 04/23/91
5,010,092 07/454,884 04/23/91
5,010,093 07/494,545 04/23/91
5,010,103 07/466,211 04/23/91
5,010,104 07/372,771 04/23/91
5,010,108 07/324,596 04/23/91
5,010,112 07/444,673 04/23/91
5,010,123 07/333,655 04/23/91
5,010,128 07/329,216 04/23/91
5,010,143 07/124,127 04/23/91
5,010,144 07/534,573 04/23/91
5,010,153 07/514,484 04/23/91
5,010,158 07/289,645 04/23/91
5,010,168 07/447,735 04/23/91
5,010,174 07/353,336 04/23/91
5,010,180 07/473,620 04/23/91
5,010,184 07/371,669 04/23/91
5,010,185 07/365,588 04/23/91
5,010,188 07/167,152 04/23/91
5,010,189 07/426,927 04/23/91
5,010,207 07/463,253 04/23/91
5,010,208 07/482,106 04/23/91
5,010,212 07/357,929 04/23/91
5,010,221 07/535,724 04/23/91
5,010,226 07/403,400 04/23/91
5,010,240 07/336,401 04/23/91
5,010,249 07/406,458 04/23/91
5,010,254 07/333,249 04/23/91
5,010,267 07/456,032 04/23/91
5,010,268 07/359,468 04/23/91
5,010,269 07/282,177 04/23/91
5,010,272 07/482,289 04/23/91
5,010,273 07/377,092 04/23/91
5,010,275 07/337,241 04/23/91
5,010,277 07/494,980 04/23/91
5,010,278 07/365,865 04/23/91
5,010,284 07/437,565 04/23/91
5,010,287 07/313,461 04/23/91
5,010,288 07/496,703 04/23/91
5,010,303 07/447,956 04/23/91
5,010,305 07/447,062 04/23/91
5,010,312 07/507,025 04/23/91
5,010,318 07/495,123 04/23/91
5,010,319 07/416,061 04/23/91
5,010,323 07/191,379 04/23/91
5,010,340 07/498,788 04/23/91
5,010,341 07/417,616 04/23/91
5,010,349 07/494,343 04/23/91
5,010,364 07/473,475 04/23/91
5,010,366 07/366,396 04/23/91
5,010,385 07/502,701 04/23/91
5,010,386 07/457,030 04/23/91
5,010,397 07/374,699 04/23/91
5,010,400 07/388,493 04/23/91
5,010,406 07/354,241 04/23/91
5,010,414 06/802,511 04/23/91
5,010,419 07/378,749 04/23/91
5,010,425 07/333,279 04/23/91
5,010,427 07/374,964 04/23/91
5,010,430 07/226,062 04/23/91
5,010,431 07/302,419 04/23/91
5,010,437 07/488,826 04/23/91
5,010,441 07/469,873 04/23/91
5,010,460 07/517,811 04/23/91
5,010,461 07/448,724 04/23/91
5,010,465 07/225,039 04/23/91
5,010,468 07/463,455 04/23/91
5,010,469 07/521,236 04/23/91
5,010,471 07/371,712 04/23/91
5,010,472 07/311,952 04/23/91
5,010,476 06/876,625 04/23/91
5,010,481 07/254,709 04/23/91
5,010,483 07/178,913 04/23/91
5,010,487 07/317,893 04/23/91
5,010,488 07/352,839 04/23/91
5,010,489 07/332,799 04/23/91
5,010,491 07/290,588 04/23/91
5,010,493 07/343,362 04/23/91
5,010,494 07/242,752 04/23/91
5,010,506 07/369,414 04/23/91
5,010,516 07/517,975 04/23/91
5,010,526 07/560,409 04/23/91
5,010,530 07/544,574 04/23/91
5,010,533 07/488,571 04/23/91
5,010,537 07/222,036 04/23/91
5,010,538 07/197,263 04/23/91
5,010,541 07/289,128 04/23/91
5,010,542 07/232,504 04/23/91
5,010,546 07/366,485 04/23/91
5,010,548 07/297,730 04/23/91
5,010,553 07/279,914 04/23/91
5,010,564 07/406,991 04/23/91
5,010,565 07/546,567 04/23/91
5,010,575 07/353,839 04/23/91
PATENTS WHICH EXPIRED ON April 25, 1999
DUE TO FAILURE TO PAY MAINTENANCE FEES
5,408,705 08/230,146 04/25/95
5,408,707 08/163,890 04/25/95
5,408,709 07/841,246 04/25/95
5,408,713 08/106,589 04/25/95
5,408,720 08/162,009 04/25/95
5,408,725 08/049,407 04/25/95
5,408,727 08/136,352 04/25/95
5,408,728 07/935,304 04/25/95
5,408,730 08/101,064 04/25/95
5,408,734 08/227,518 04/25/95
5,408,740 08/038,669 04/25/95
5,408,742 08/141,474 04/25/95
5,408,745 08/092,532 04/25/95
5,408,748 08/308,685 04/25/95
5,408,757 08/237,163 04/25/95
5,408,762 07/983,375 04/25/95
5,408,765 08/082,036 04/25/95
5,408,766 08/053,376 04/25/95
5,408,768 08/214,469 04/25/95
5,408,771 08/195,703 04/25/95
5,408,774 08/043,360 04/25/95
5,408,779 08/229,669 04/25/95
5,408,781 08/150,736 04/25/95
5,408,782 08/232,656 04/25/95
5,408,788 08/113,411 04/25/95
5,408,790 08/160,962 04/25/95
5,408,801 08/316,893 04/25/95
5,408,813 08/234,346 04/25/95
5,408,815 08/102,354 04/25/95
5,408,816 08/266,476 04/25/95
5,408,828 08/163,792 04/25/95
5,408,829 08/127,952 04/25/95
5,408,835 08/167,147 04/25/95
5,408,839 07/908,745 04/25/95
5,408,840 08/223,005 04/25/95
5,408,849 08/090,126 04/25/95
5,408,850 08/189,572 04/25/95
5,408,854 07/931,149 04/25/95
5,408,856 07/977,595 04/25/95
5,408,861 08/167,131 04/25/95
5,408,865 08/106,555 04/25/95
5,408,886 08/168,135 04/25/95
5,408,889 08/173,231 04/25/95
5,408,894 08/028,409 04/25/95
5,408,901 08/290,221 04/25/95
5,408,903 08/151,492 04/25/95
5,408,906 08/294,104 04/25/95
5,408,909 08/188,826 04/25/95
5,408,911 08/168,267 04/25/95
5,408,912 08/171,657 04/25/95
5,408,920 08/285,234 04/25/95
5,408,926 08/196,433 04/25/95
5,408,931 08/131,076 04/25/95
5,408,933 08/182,429 04/25/95
5,408,934 08/124,925 04/25/95
5,408,938 07/960,556 04/25/95
5,408,945 08/137,004 04/25/95
5,408,950 08/062,587 04/25/95
5,408,957 08/054,792 04/25/95
5,408,958 08/208,118 04/25/95
5,408,961 08/103,058 04/25/95
5,408,966 08/172,350 04/25/95
5,408,967 08/139,669 04/25/95
5,408,969 08/178,751 04/25/95
5,408,973 08/157,540 04/25/95
5,408,983 08/075,811 04/25/95
5,408,988 08/095,963 04/25/95
5,408,990 08/240,441 04/25/95
5,408,991 08/099,825 04/25/95
5,408,992 08/148,097 04/25/95
5,409,002 08/192,063 04/25/95
5,409,003 08/227,575 04/25/95
5,409,005 08/133,750 04/25/95
5,409,011 08/088,269 04/25/95
5,409,021 08/051,153 04/25/95
5,409,022 08/135,898 04/25/95
5,409,025 08/132,717 04/25/95
5,409,027 08/223,007 04/25/95
5,409,029 08/262,534 04/25/95
5,409,032 08/216,143 04/25/95
5,409,033 08/084,177 04/25/95
5,409,035 08/178,065 04/25/95
5,409,039 08/033,328 04/25/95
5,409,044 08/201,900 04/25/95
5,409,074 08/153,343 04/25/95
5,409,077 08/285,180 04/25/95
5,409,079 08/169,848 04/25/95
5,409,080 08/169,849 04/25/95
5,409,081 08/100,603 04/25/95
5,409,083 08/210,873 04/25/95
5,409,089 08/008,229 04/25/95
5,409,093 08/115,425 04/25/95
5,409,094 08/125,153 04/25/95
5,409,097 08/060,170 04/25/95
5,409,100 08/197,290 04/25/95
5,409,106 08/289,311 04/25/95
5,409,107 08/170,756 04/25/95
5,409,109 08/272,818 04/25/95
5,409,110 08/204,010 04/25/95
5,409,115 08/117,074 04/25/95
5,409,120 08/108,436 04/25/95
5,409,121 08/149,563 04/25/95
5,409,122 08/094,999 04/25/95
5,409,128 08/223,774 04/25/95
5,409,131 08/285,016 04/25/95
5,409,132 08/269,954 04/25/95
5,409,139 08/134,547 04/25/95
5,409,140 08/187,898 04/25/95
5,409,143 08/104,130 04/25/95
5,409,145 08/200,003 04/25/95
5,409,150 07/825,698 04/25/95
5,409,153 08/151,936 04/25/95
5,409,166 08/071,286 04/25/95
5,409,174 08/175,885 04/25/95
5,409,181 08/097,773 04/25/95
5,409,186 08/028,780 04/25/95
5,409,187 08/280,412 04/25/95
5,409,190 08/169,598 04/25/95
5,409,191 08/119,489 04/25/95
5,409,194 07/970,407 04/25/95
5,409,199 07/946,416 04/25/95
5,409,204 08/112,363 04/25/95
5,409,212 08/284,187 04/25/95
5,409,213 07/748,048 04/25/95
5,409,217 08/285,708 04/25/95
5,409,218 08/178,855 04/25/95
5,409,219 08/084,503 04/25/95
5,409,223 08/250,905 04/25/95
5,409,227 08/202,410 04/25/95
5,409,230 08/009,466 04/25/95
5,409,238 08/101,319 04/25/95
5,409,239 07/966,362 04/25/95
5,409,241 08/091,593 04/25/95
5,409,244 08/090,600 04/25/95
5,409,246 08/091,188 04/25/95
5,409,253 08/265,130 04/25/95
5,409,264 08/006,291 04/25/95
5,409,267 08/154,593 04/25/95
5,409,268 08/030,362 04/25/95
5,409,275 08/203,292 04/25/95
5,409,276 08/170,825 04/25/95
5,409,277 08/025,430 04/25/95
5,409,282 08/155,381 04/25/95
5,409,289 08/191,904 04/25/95
5,409,293 08/025,233 04/25/95
5,409,298 08/126,214 04/25/95
5,409,311 08/062,681 04/25/95
5,409,315 08/190,218 04/25/95
5,409,316 08/042,203 04/25/95
5,409,323 08/116,766 04/25/95
5,409,325 08/194,586 04/25/95
5,409,326 08/290,609 04/25/95
5,409,331 08/053,940 04/25/95
5,409,333 08/189,682 04/25/95
5,409,352 08/228,805 04/25/95
5,409,355 08/185,831 04/25/95
5,409,356 07/897,029 04/25/95
5,409,360 08/150,656 04/25/95
5,409,365 08/321,805 04/25/95
5,409,368 08/069,620 04/25/95
5,409,370 08/297,048 04/25/95
5,409,374 08/128,773 04/25/95
5,409,380 07/897,465 04/25/95
5,409,383 08/137,372 04/25/95
5,409,386 08/108,412 04/25/95
5,409,402 08/237,152 04/25/95
5,409,403 08/140,545 04/25/95
5,409,408 08/051,570 04/25/95
5,409,414 08/123,924 04/25/95
5,409,423 08/229,038 04/25/95
5,409,430 08/144,517 04/25/95
5,409,437 08/093,910 04/25/95
5,409,439 08/193,406 04/25/95
5,409,440 08/187,766 04/25/95
5,409,446 08/157,134 04/25/95
5,409,447 08/133,642 04/25/95
5,409,450 08/121,536 04/25/95
5,409,452 08/016,584 04/25/95
5,409,454 08/236,249 04/25/95
5,409,473 08/069,183 04/25/95
5,409,474 07/966,033 04/25/95
5,409,483 08/062,384 04/25/95
5,409,502 08/157,206 04/25/95
5,409,506 08/121,091 04/25/95
5,409,510 08/221,635 04/25/95
5,409,532 08/007,167 04/25/95
5,409,533 08/093,014 04/25/95
5,409,534 08/185,986 04/25/95
5,409,550 08/090,123 04/25/95
5,409,560 08/205,097 04/25/95
5,409,561 08/050,265 04/25/95
5,409,564 08/077,139 04/25/95
5,409,581 08/080,364 04/25/95
5,409,582 08/010,729 04/25/95
5,409,586 08/111,508 04/25/95
5,409,595 08/223,064 04/25/95
5,409,599 08/293,775 04/25/95
5,409,601 08/087,031 04/25/95
5,409,602 08/202,165 04/25/95
5,409,603 08/218,929 04/25/95
5,409,607 08/132,376 04/25/95
5,409,609 08/092,896 04/25/95
5,409,616 08/205,999 04/25/95
5,409,623 08/231,590 04/25/95
5,409,630 08/191,222 04/25/95
5,409,639 08/082,315 04/25/95
5,409,646 08/128,888 04/25/95
5,409,650 08/182,207 04/25/95
5,409,654 08/103,919 04/25/95
5,409,660 08/044,640 04/25/95
5,409,663 08/237,314 04/25/95
5,409,667 08/236,658 04/25/95
5,409,668 08/167,406 04/25/95
5,409,670 08/105,424 04/25/95
5,409,673 07/832,989 04/25/95
5,409,674 08/227,214 04/25/95
5,409,675 08/232,822 04/25/95
5,409,678 08/031,053 04/25/95
5,409,685 08/167,838 04/25/95
5,409,686 07/814,182 04/25/95
5,409,687 08/255,306 04/25/95
5,409,690 08/081,663 04/25/95
5,409,694 08/026,249 04/25/95
5,409,702 08/109,018 04/25/95
5,409,707 08/092,542 04/25/95
5,409,710 08/049,943 04/25/95
5,409,728 08/051,989 04/25/95
5,409,730 08/159,989 04/25/95
5,409,741 07/836,650 04/25/95
5,409,745 08/167,172 04/25/95
5,409,748 07/815,078 04/25/95
5,409,761 08/087,003 04/25/95
5,409,765 08/101,925 04/25/95
5,409,785 07/994,343 04/25/95
5,409,803 08/082,009 04/25/95
5,409,815 07/311,556 04/25/95
5,409,822 08/084,832 04/25/95
5,409,834 08/043,655 04/25/95
5,409,841 07/669,498 04/25/95
5,409,878 07/956,498 04/25/95
5,409,885 07/911,092 04/25/95
5,409,889 08/061,762 04/25/95
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