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 June 20, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
4,839,927 07/082,317 06/20/89
4,839,936 07/191,583 06/20/89
4,839,941 07/138,106 06/20/89
4,839,969 07/160,521 06/20/89
4,840,001 07/298,011 06/20/89
4,840,004 07/222,551 06/20/89
4,840,006 07/062,466 06/20/89
4,840,007 07/140,188 06/20/89
4,840,009 07/222,865 06/20/89
4,840,010 07/111,534 06/20/89
4,840,013 07/181,679 06/20/89
4,840,015 07/150,415 06/20/89
4,840,031 07/047,032 06/20/89
4,840,037 07/153,712 06/20/89
4,840,043 07/050,475 06/20/89
4,840,053 07/139,811 06/20/89
4,840,059 07/222,083 06/20/89
4,840,065 07/099,357 06/20/89
4,840,072 07/081,823 06/20/89
4,840,084 07/134,502 06/20/89
4,840,092 07/067,764 06/20/89
4,840,105 07/230,662 06/20/89
4,840,110 07/149,329 06/20/89
4,840,127 07/128,930 06/20/89
4,840,142 07/110,409 06/20/89
4,840,145 07/195,117 06/20/89
4,840,156 07/139,068 06/20/89
4,840,160 07/154,802 06/20/89
4,840,163 07/001,420 06/20/89
4,840,168 07/231,223 06/20/89
4,840,173 07/158,634 06/20/89
4,840,183 07/225,224 06/20/89
4,840,198 07/143,969 06/20/89
4,840,201 07/185,078 06/20/89
4,840,205 07/216,335 06/20/89
4,840,206 07/036,207 06/20/89
4,840,208 07/166,080 06/20/89
4,840,218 07/033,177 06/20/89
4,840,220 07/109,310 06/20/89
4,840,230 07/096,860 06/20/89
4,840,231 07/184,832 06/20/89
4,840,245 07/183,378 06/20/89
4,840,262 07/113,059 06/20/89
4,840,270 07/135,940 06/20/89
4,840,271 07/086,046 06/20/89
4,840,274 07/172,250 06/20/89
4,840,288 07/239,167 06/20/89
4,840,296 07/175,281 06/20/89
4,840,309 07/161,973 06/20/89
4,840,316 07/218,687 06/20/89
4,840,321 07/095,594 06/20/89
4,840,329 07/134,602 06/20/89
4,840,336 07/202,329 06/20/89
4,840,345 07/149,696 06/20/89
4,840,350 07/080,041 06/20/89
4,840,354 07/209,834 06/20/89
4,840,357 07/207,517 06/20/89
4,840,365 07/056,786 06/20/89
4,840,373 07/172,550 06/20/89
4,840,375 07/063,126 06/20/89
4,840,389 07/106,444 06/20/89
4,840,394 07/184,236 06/20/89
4,840,396 07/123,870 06/20/89
4,840,397 07/133,075 06/20/89
4,840,402 07/201,436 06/20/89
4,840,403 07/195,339 06/20/89
4,840,405 07/198,349 06/20/89
4,840,406 07/055,406 06/20/89
4,840,407 07/175,931 06/20/89
4,840,411 07/014,831 06/20/89
4,840,416 07/108,392 06/20/89
4,840,421 07/164,532 06/20/89
4,840,422 07/140,475 06/20/89
4,840,424 07/176,179 06/20/89
4,840,428 07/211,222 06/20/89
4,840,433 07/169,562 06/20/89
4,840,434 06/750,453 06/20/89
4,840,435 07/252,288 06/20/89
4,840,436 07/112,310 06/20/89
4,840,438 07/035,442 06/20/89
4,840,446 07/094,601 06/20/89
4,840,451 07/130,145 06/20/89
4,840,455 06/714,102 06/20/89
4,840,462 07/160,424 06/20/89
4,840,477 07/211,335 06/20/89
4,840,482 07/182,022 06/20/89
4,840,484 07/175,320 06/20/89
4,840,507 07/165,311 06/20/89
4,840,509 07/108,675 06/20/89
4,840,510 07/113,116 06/20/89
4,840,512 07/134,304 06/20/89
4,840,522 07/112,977 06/20/89
4,840,539 07/165,320 06/20/89
4,840,543 07/230,594 06/20/89
4,840,546 06/838,396 06/20/89
4,840,548 07/173,153 06/20/89
4,840,551 07/023,000 06/20/89
4,840,552 07/070,784 06/20/89
4,840,558 07/137,666 06/20/89
4,840,563 07/155,115 06/20/89
4,840,576 07/108,775 06/20/89
4,840,584 07/152,819 06/20/89
4,840,585 07/240,340 06/20/89
4,840,589 07/220,366 06/20/89
4,840,594 07/202,285 06/20/89
4,840,608 07/078,789 06/20/89
4,840,609 07/089,155 06/20/89
4,840,622 07/105,552 06/20/89
4,840,627 07/051,159 06/20/89
4,840,630 07/154,504 06/20/89
4,840,632 06/870,289 06/20/89
4,840,637 07/206,190 06/20/89
4,840,638 07/206,374 06/20/89
4,840,640 07/062,881 06/20/89
4,840,643 07/168,657 06/20/89
4,840,651 07/142,569 06/20/89
4,840,663 07/107,202 06/20/89
4,840,666 07/185,268 06/20/89
4,840,668 07/116,723 06/20/89
4,840,672 07/025,195 06/20/89
4,840,677 07/201,207 06/20/89
4,840,681 07/230,438 06/20/89
4,840,685 07/183,441 06/20/89
4,840,689 07/207,578 06/20/89
4,840,704 07/170,299 06/20/89
4,840,730 07/207,896 06/20/89
4,840,746 07/086,365 06/20/89
4,840,747 07/275,485 06/20/89
4,840,748 07/062,290 06/20/89
4,840,756 06/928,154 06/20/89
4,840,761 07/016,870 06/20/89
4,840,764 07/256,633 06/20/89
4,840,775 07/107,079 06/20/89
4,840,776 07/107,078 06/20/89
4,840,790 06/865,441 06/20/89
4,840,794 07/012,060 06/20/89
4,840,805 07/035,190 06/20/89
4,840,809 07/180,226 06/20/89
4,840,830 07/105,977 06/20/89
4,840,833 07/157,253 06/20/89
4,840,834 07/027,818 06/20/89
4,840,848 07/146,243 06/20/89
4,840,855 07/174,184 06/20/89
4,840,859 06/874,415 06/20/89
4,840,870 07/170,063 06/20/89
4,840,889 07/093,821 06/20/89
4,840,894 06/835,898 06/20/89
4,840,908 07/217,481 06/20/89
4,840,916 07/090,432 06/20/89
4,840,924 07/115,565 06/20/89
4,840,926 07/125,712 06/20/89
4,840,929 07/218,438 06/20/89
4,840,935 06/886,070 06/20/89
4,840,939 07/027,413 06/20/89
4,840,942 06/656,835 06/20/89
4,840,948 07/051,777 06/20/89
4,840,949 07/107,693 06/20/89
4,840,954 06/815,440 06/20/89
4,840,959 07/084,173 06/20/89
4,840,960 07/089,094 06/20/89
4,840,972 07/270,172 06/20/89
4,840,980 07/161,963 06/20/89
4,840,986 07/165,062 06/20/89
4,840,990 07/249,298 06/20/89
4,840,994 07/208,038 06/20/89
4,841,016 07/168,895 06/20/89
4,841,021 07/126,590 06/20/89
4,841,026 07/007,150 06/20/89
4,841,029 07/186,656 06/20/89
4,841,030 06/327,337 06/20/89
4,841,032 07/090,508 06/20/89
4,841,033 07/102,355 06/20/89
4,841,047 06/928,458 06/20/89
4,841,057 07/143,366 06/20/89
4,841,061 07/126,351 06/20/89
4,841,075 07/129,702 06/20/89
4,841,097 07/181,177 06/20/89
4,841,111 07/119,605 06/20/89
4,841,114 07/193,702 06/20/89
4,841,116 07/159,254 06/20/89
4,841,117 07/128,170 06/20/89
4,841,128 06/422,909 06/20/89
4,841,130 07/220,288 06/20/89
4,841,143 07/160,408 06/20/89
4,841,145 07/063,908 06/20/89
4,841,151 07/014,738 06/20/89
4,841,152 07/193,526 06/20/89
4,841,164 07/219,743 06/20/89
4,841,168 06/929,795 06/20/89
4,841,175 07/110,886 06/20/89
4,841,192 07/100,833 06/20/89
4,841,194 07/262,194 06/20/89
4,841,196 07/130,835 06/20/89
4,841,211 07/081,458 06/20/89
4,841,217 07/132,596 06/20/89
4,841,230 07/239,911 06/20/89
4,841,235 07/061,351 06/20/89
4,841,238 07/133,078 06/20/89
4,841,240 07/149,829 06/20/89
4,841,248 07/086,277 06/20/89
4,841,254 07/055,651 06/20/89
4,841,272 07/089,504 06/20/89
4,841,273 07/134,881 06/20/89
4,841,312 07/126,125 06/20/89
4,841,317 07/189,084 06/20/89
4,841,318 07/169,586 06/20/89
4,841,325 07/245,967 06/20/89
4,841,335 06/937,977 06/20/89
4,841,337 07/183,711 06/20/89
4,841,353 07/129,390 06/20/89
4,841,356 07/177,637 06/20/89
4,841,358 06/911,876 06/20/89
4,841,361 07/128,276 06/20/89
4,841,366 07/032,828 06/20/89
4,841,386 07/117,066 06/20/89
4,841,399 06/936,617 06/20/89
4,841,402 07/004,623 06/20/89
4,841,404 07/106,048 06/20/89
4,841,409 07/127,280 06/20/89
4,841,423 07/062,214 06/20/89
4,841,428 07/169,921 06/20/89
4,841,443 06/924,788 06/20/89
4,841,445 07/083,392 06/20/89
4,841,448 07/092,089 06/20/89
4,841,449 07/105,787 06/20/89
4,841,454 07/043,022 06/20/89
4,841,455 07/081,147 06/20/89
4,841,456 06/906,104 06/20/89
4,841,457 07/071,142 06/20/89
4,841,465 07/069,445 06/20/89
4,841,469 07/222,937 06/20/89
4,841,488 07/036,765 06/20/89
4,841,492 07/082,248 06/20/89
4,841,497 07/129,619 06/20/89
4,841,501 07/019,720 06/20/89
4,841,502 06/871,558 06/20/89
4,841,511 07/109,315 06/20/89
4,841,512 06/942,790 06/20/89
4,841,515 07/068,923 06/20/89
4,841,521 07/055,036 06/20/89
4,841,533 06/920,585 06/20/89
4,841,535 07/231,003 06/20/89
4,841,571 06/562,567 06/20/89
PATENTS WHICH EXPIRED ON June 15, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,218,718 07/868,635 06/15/93
5,218,725 07/881,648 06/15/93
5,218,733 07/783,405 06/15/93
5,218,734 07/683,427 06/15/93
5,218,744 07/745,756 06/15/93
5,218,749 07/871,660 06/15/93
5,218,755 07/828,272 06/15/93
5,218,758 07/818,301 06/15/93
5,218,771 07/868,835 06/15/93
5,218,787 07/766,579 06/15/93
5,218,793 07/729,398 06/15/93
5,218,797 07/790,496 06/15/93
5,218,801 07/766,630 06/15/93
5,218,802 07/640,483 06/15/93
5,218,807 07/893,760 06/15/93
5,218,819 07/738,131 06/15/93
5,218,825 07/854,939 06/15/93
5,218,826 07/918,903 06/15/93
5,218,828 07/974,389 06/15/93
5,218,831 07/968,191 06/15/93
5,218,833 07/850,384 06/15/93
5,218,837 07/905,253 06/15/93
5,218,838 07/872,894 06/15/93
5,218,839 07/934,266 06/15/93
5,218,843 07/866,445 06/15/93
5,218,846 07/820,532 06/15/93
5,218,849 07/782,334 06/15/93
5,218,858 07/679,604 06/15/93
5,218,866 07/657,587 06/15/93
5,218,879 07/753,722 06/15/93
5,218,887 07/914,676 06/15/93
5,218,888 07/587,719 06/15/93
5,218,892 07/858,341 06/15/93
5,218,894 07/785,384 06/15/93
5,218,903 07/940,686 06/15/93
5,218,904 07/996,521 06/15/93
5,218,906 07/897,817 06/15/93
5,218,910 07/868,999 06/15/93
5,218,914 07/620,141 06/15/93
5,218,927 07/744,937 06/15/93
5,218,937 07/964,906 06/15/93
5,218,940 07/902,464 06/15/93
5,218,945 07/898,006 06/15/93
5,218,946 07/951,856 06/15/93
5,218,947 07/742,875 06/15/93
5,218,949 07/890,385 06/15/93
5,218,965 07/620,994 06/15/93
5,218,969 07/628,482 06/15/93
5,218,970 07/799,840 06/15/93
5,218,972 07/754,960 06/15/93
5,218,976 07/778,389 06/15/93
5,218,980 07/774,476 06/15/93
5,218,982 07/923,930 06/15/93
5,218,984 07/891,443 06/15/93
5,218,994 07/907,285 06/15/93
5,218,996 07/864,432 06/15/93
5,219,001 07/743,725 06/15/93
5,219,014 07/824,075 06/15/93
5,219,034 07/858,036 06/15/93
5,219,036 07/918,666 06/15/93
5,219,044 07/925,826 06/15/93
5,219,054 07/841,428 06/15/93
5,219,057 07/882,412 06/15/93
5,219,058 07/882,347 06/15/93
5,219,060 07/705,466 06/15/93
5,219,069 07/938,965 06/15/93
5,219,075 07/763,952 06/15/93
5,219,076 07/840,593 06/15/93
5,219,088 07/877,922 06/15/93
5,219,092 07/877,759 06/15/93
5,219,093 07/878,169 06/15/93
5,219,108 07/868,314 06/15/93
5,219,112 07/879,323 06/15/93
5,219,113 07/774,083 06/15/93
5,219,116 07/929,029 06/15/93
5,219,120 07/735,071 06/15/93
5,219,127 07/619,476 06/15/93
5,219,133 07/863,031 06/15/93
5,219,136 07/754,335 06/15/93
5,219,137 07/783,219 06/15/93
5,219,138 07/773,337 06/15/93
5,219,141 07/692,623 06/15/93
5,219,145 07/759,010 06/15/93
5,219,146 07/881,087 06/15/93
5,219,147 07/946,697 06/15/93
5,219,164 07/708,504 06/15/93
5,219,169 07/880,566 06/15/93
5,219,181 07/716,655 06/15/93
5,219,182 07/822,590 06/15/93
5,219,184 07/967,736 06/15/93
5,219,189 07/821,287 06/15/93
5,219,200 07/943,486 06/15/93
5,219,205 07/795,546 06/15/93
5,219,215 07/801,941 06/15/93
5,219,216 07/742,388 06/15/93
5,219,231 07/759,779 06/15/93
5,219,232 07/799,208 06/15/93
5,219,243 07/901,931 06/15/93
5,219,247 07/736,328 06/15/93
5,219,257 07/786,065 06/15/93
5,219,261 07/884,655 06/15/93
5,219,265 07/820,105 06/15/93
5,219,272 07/801,719 06/15/93
5,219,275 07/938,185 06/15/93
5,219,276 07/841,181 06/15/93
5,219,285 07/663,401 06/15/93
5,219,286 07/952,436 06/15/93
5,219,295 07/857,206 06/15/93
5,219,296 07/818,188 06/15/93
5,219,298 07/863,767 06/15/93
5,219,302 07/708,405 06/15/93
5,219,305 07/878,574 06/15/93
5,219,311 07/937,964 06/15/93
5,219,317 07/838,909 06/15/93
5,219,318 07/918,746 06/15/93
5,219,320 07/657,994 06/15/93
5,219,324 07/849,756 06/15/93
5,219,342 07/538,885 06/15/93
5,219,348 07/874,944 06/15/93
5,219,349 07/657,024 06/15/93
5,219,350 07/592,997 06/15/93
5,219,357 07/817,886 06/15/93
5,219,368 07/709,232 06/15/93
5,219,371 07/858,701 06/15/93
5,219,372 07/900,847 06/15/93
5,219,375 07/697,841 06/15/93
5,219,376 07/828,415 06/15/93
5,219,388 07/821,811 06/15/93
5,219,390 07/759,411 06/15/93
5,219,394 07/799,660 06/15/93
5,219,400 07/713,212 06/15/93
5,219,403 07/826,767 06/15/93
5,219,406 07/812,481 06/15/93
5,219,410 07/886,296 06/15/93
5,219,414 07/814,221 06/15/93
5,219,417 07/807,477 06/15/93
5,219,421 07/899,268 06/15/93
5,219,427 07/875,689 06/15/93
5,219,431 07/814,312 06/15/93
5,219,432 07/630,808 06/15/93
5,219,439 07/935,602 06/15/93
5,219,440 07/839,520 06/15/93
5,219,442 07/944,817 06/15/93
5,219,447 07/807,825 06/15/93
5,219,469 07/791,253 06/15/93
5,219,474 07/564,192 06/15/93
5,219,477 07/685,389 06/15/93
5,219,478 07/805,760 06/15/93
5,219,481 07/868,234 06/15/93
5,219,482 07/817,227 06/15/93
5,219,485 07/778,326 06/15/93
5,219,492 07/898,286 06/15/93
5,219,501 07/723,187 06/15/93
5,219,502 07/425,486 06/15/93
5,219,505 07/704,811 06/15/93
5,219,508 07/651,667 06/15/93
5,219,510 07/588,650 06/15/93
5,219,513 07/794,836 06/15/93
5,219,514 07/847,310 06/15/93
5,219,515 07/825,070 06/15/93
5,219,520 07/913,567 06/15/93
5,219,522 07/465,194 06/15/93
5,219,524 07/696,852 06/15/93
5,219,531 07/865,879 06/15/93
5,219,541 07/734,495 06/15/93
5,219,543 07/803,185 06/15/93
5,219,544 07/631,159 06/15/93
5,219,545 07/666,716 06/15/93
5,219,546 07/771,673 06/15/93
5,219,547 07/771,675 06/15/93
5,219,571 07/884,851 06/15/93
5,219,572 07/734,120 06/15/93
5,219,585 07/852,899 06/15/93
5,219,586 07/951,836 06/15/93
5,219,597 07/802,419 06/15/93
5,219,606 07/784,997 06/15/93
5,219,610 07/764,057 06/15/93
5,219,620 07/735,579 06/15/93
5,219,624 07/814,711 06/15/93
5,219,629 07/725,491 06/15/93
5,219,634 07/640,782 06/15/93
5,219,643 07/754,074 06/15/93
5,219,649 07/629,881 06/15/93
5,219,651 07/790,084 06/15/93
5,219,661 07/767,121 06/15/93
5,219,668 07/401,766 06/15/93
5,219,672 07/743,760 06/15/93
5,219,700 07/858,441 06/15/93
5,219,703 07/833,265 06/15/93
5,219,709 07/841,495 06/15/93
5,219,719 07/694,569 06/15/93
5,219,724 07/797,040 06/15/93
5,219,731 07/786,731 06/15/93
5,219,738 07/045,512 06/15/93
5,219,743 07/836,377 06/15/93
5,219,752 07/730,386 06/15/93
5,219,753 07/369,975 06/15/93
5,219,754 07/374,986 06/15/93
5,219,755 07/703,787 06/15/93
5,219,760 07/750,766 06/15/93
5,219,763 07/499,509 06/15/93
5,219,771 07/762,631 06/15/93
5,219,779 07/711,867 06/15/93
5,219,797 07/937,015 06/15/93
5,219,807 07/722,570 06/15/93
5,219,817 07/930,889 06/15/93
5,219,819 07/817,878 06/15/93
5,219,825 07/100,319 06/15/93
5,219,826 07/569,434 06/15/93
5,219,831 07/725,960 06/15/93
5,219,833 07/768,115 06/15/93
5,219,839 07/844,778 06/15/93
5,219,841 07/616,028 06/15/93
5,219,844 07/861,178 06/15/93
5,219,845 07/835,732 06/15/93
5,219,847 07/918,800 06/15/93
5,219,852 07/629,509 06/15/93
5,219,854 07/907,637 06/15/93
5,219,855 07/839,737 06/15/93
5,219,856 07/863,881 06/15/93
5,219,857 07/869,573 06/15/93
5,219,859 07/855,544 06/15/93
5,219,861 07/712,760 06/15/93
5,219,874 07/763,304 06/15/93
5,219,879 07/664,988 06/15/93
5,219,912 07/727,727 06/15/93
5,219,916 07/622,266 06/15/93
5,219,917 07/896,153 06/15/93
5,219,927 07/814,108 06/15/93
5,219,930 08/006,568 06/15/93
5,219,943 07/735,768 06/15/93
5,219,949 07/793,424 06/15/93
5,219,953 07/605,342 06/15/93
5,219,955 07/848,468 06/15/93
5,219,959 07/815,858 06/15/93
5,219,963 07/803,043 06/15/93
5,219,972 07/771,323 06/15/93
5,219,987 07/227,364 06/15/93
5,219,988 07/482,653 06/15/93
5,219,993 07/730,860 06/15/93
5,220,002 07/810,883 06/15/93
5,220,007 07/839,472 06/15/93
5,220,008 07/796,201 06/15/93
5,220,009 07/691,313 06/15/93
5,220,011 07/720,324 06/15/93
5,220,016 07/736,300 06/15/93
5,220,017 07/848,789 06/15/93
5,220,020 07/792,233 06/15/93
5,220,023 07/866,704 06/15/93
5,220,029 07/492,645 06/15/93
5,220,035 07/687,061 06/15/93
5,220,037 07/825,752 06/15/93
5,220,052 07/773,586 06/15/93
5,220,062 07/875,855 06/15/93
5,220,063 07/698,504 06/15/93
5,220,068 07/649,239 06/15/93
5,220,070 07/755,207 06/15/93
5,220,074 07/906,323 06/15/93
5,220,083 07/826,296 06/15/93
5,220,087 07/806,483 06/15/93
5,220,103 07/895,509 06/15/93
5,220,107 07/110,753 06/15/93
5,220,111 07/757,361 06/15/93
5,220,112 07/757,359 06/15/93
5,220,116 07/884,954 06/15/93
5,220,127 07/800,504 06/15/93
5,220,130 07/740,792 06/15/93
5,220,139 07/807,404 06/15/93
5,220,144 07/856,111 06/15/93
5,220,147 07/750,097 06/15/93
5,220,163 07/862,097 06/15/93
5,220,175 07/824,027 06/15/93
5,220,186 07/802,560 06/15/93
5,220,192 07/911,861 06/15/93
5,220,197 07/856,452 06/15/93
5,220,203 07/616,437 06/15/93
5,220,204 07/705,232 06/15/93
5,220,224 07/943,364 06/15/93
5,220,225 07/900,943 06/15/93
5,220,234 07/844,360 06/15/93
5,220,237 07/698,225 06/15/93
5,220,244 07/798,059 06/15/93
5,220,247 07/860,852 06/15/93
5,220,249 07/772,865 06/15/93
5,220,255 07/596,227 06/15/93
5,220,268 07/715,331 06/15/93
5,220,283 07/713,980 06/15/93
5,220,286 07/956,822 06/15/93
5,220,288 07/891,018 06/15/93
5,220,289 07/796,357 06/15/93
5,220,292 07/815,981 06/15/93
5,220,297 07/822,694 06/15/93
5,220,302 07/467,909 06/15/93
5,220,309 07/831,550 06/15/93
5,220,312 07/414,967 06/15/93
5,220,315 07/692,182 06/15/93
5,220,331 07/903,011 06/15/93
5,220,332 07/877,869 06/15/93
5,220,334 07/309,760 06/15/93
5,220,338 07/778,823 06/15/93
5,220,339 07/421,142 06/15/93
5,220,357 07/933,495 06/15/93
5,220,372 07/823,951 06/15/93
5,220,378 07/871,410 06/15/93
5,220,385 07/769,219 06/15/93
5,220,387 07/789,647 06/15/93
5,220,403 07/954,282 06/15/93
5,220,408 07/805,545 06/15/93
5,220,412 07/561,324 06/15/93
5,220,421 07/820,406 06/15/93
5,220,440 07/595,882 06/15/93
5,220,452 07/742,563 06/15/93
5,220,453 07/658,068 06/15/93
5,220,455 07/796,509 06/15/93
5,220,463 07/647,294 06/15/93
5,220,468 07/502,312 06/15/93
5,220,472 07/662,619 06/15/93
5,220,474 07/831,856 06/15/93
5,220,478 07/686,959 06/15/93
5,220,486 07/757,523 06/15/93
5,220,490 07/603,614 06/15/93
5,220,491 07/681,270 06/15/93
5,220,493 07/793,400 06/15/93
5,220,499 07/613,728 06/15/93
5,220,500 07/409,650 06/15/93
5,220,505 07/724,665 06/15/93
5,220,508 07/634,613 06/15/93
5,220,525 07/787,477 06/15/93
5,220,539 07/872,974 06/15/93
5,220,549 07/657,507 06/15/93
5,220,560 07/642,502 06/15/93
5,220,563 07/811,077 06/15/93
5,220,572 07/800,108 06/15/93
5,220,576 07/751,556 06/15/93
5,220,577 07/745,593 06/15/93
5,220,583 07/253,174 06/15/93
5,220,598 07/613,792 06/15/93
5,220,602 07/805,192 06/15/93
5,220,606 07/832,974 06/15/93
5,220,607 07/805,642 06/15/93
5,220,617 07/754,793 06/15/93
5,220,618 07/653,592 06/15/93
5,220,644 07/823,322 06/15/93
5,220,652 07/370,102 06/15/93
5,220,656 07/457,413 06/15/93
5,220,663 07/470,475 06/15/93
5,220,665 07/516,363 06/15/93
5,220,673 07/738,920 06/15/93
5,220,681 07/315,843 06/15/93
5,220,682 07/765,943 06/15/93
5,220,683 07/749,687 06/15/93
PATENTS WHICH EXPIRED ON June 17, 2001
DUE TO FAILURE TO PAY MAINTENANCE FEES
Patent Serial Issue
Number Number Date
5,638,550 08/543,376 06/17/97
5,638,553 08/700,926 06/17/97
5,638,558 08/359,433 06/17/97
5,638,560 08/578,472 06/17/97
5,638,561 08/581,945 06/17/97
5,638,571 08/589,558 06/17/97
5,638,576 08/561,426 06/17/97
5,638,577 08/695,719 06/17/97
5,638,579 08/708,727 06/17/97
5,638,581 08/575,556 06/17/97
5,638,584 08/630,021 06/17/97
5,638,589 08/013,401 06/17/97
5,638,603 08/597,866 06/17/97
5,638,614 08/574,036 06/17/97
5,638,615 08/548,610 06/17/97
5,638,617 08/594,259 06/17/97
5,638,620 08/443,656 06/17/97
5,638,621 08/603,849 06/17/97
5,638,625 08/513,988 06/17/97
5,638,628 08/497,646 06/17/97
5,638,629 08/392,112 06/17/97
5,638,630 08/603,079 06/17/97
5,638,635 08/370,119 06/17/97
5,638,636 08/271,020 06/17/97
5,638,645 08/570,419 06/17/97
5,638,652 08/502,144 06/17/97
5,638,656 08/628,950 06/17/97
5,638,681 08/645,912 06/17/97
5,638,684 08/585,006 06/17/97
5,638,688 08/562,576 06/17/97
5,638,690 08/491,926 06/17/97
5,638,696 08/586,630 06/17/97
5,638,697 08/562,384 06/17/97
5,638,700 08/583,988 06/17/97
5,638,706 08/539,111 06/17/97
5,638,707 08/580,374 06/17/97
5,638,708 08/622,629 06/17/97
5,638,709 08/571,036 06/17/97
5,638,713 08/629,757 06/17/97
5,638,716 08/237,347 06/17/97
5,638,718 08/500,968 06/17/97
5,638,723 08/515,002 06/17/97
5,638,729 08/509,431 06/17/97
5,638,734 08/615,680 06/17/97
5,638,736 08/539,228 06/17/97
5,638,741 08/643,520 06/17/97
5,638,743 08/702,321 06/17/97
5,638,747 08/644,366 06/17/97
5,638,760 08/673,073 06/17/97
5,638,763 08/501,611 06/17/97
5,638,764 08/602,765 06/17/97
5,638,765 08/349,122 06/17/97
5,638,771 08/645,524 06/17/97
5,638,772 08/552,216 06/17/97
5,638,773 08/503,581 06/17/97
5,638,776 08/013,362 06/17/97
5,638,780 08/609,245 06/17/97
5,638,782 08/606,486 06/17/97
5,638,793 08/569,775 06/17/97
5,638,796 08/253,844 06/17/97
5,638,804 08/613,629 06/17/97
5,638,809 08/619,993 06/17/97
5,638,812 08/680,616 06/17/97
5,638,819 08/520,386 06/17/97
5,638,820 08/674,652 06/17/97
5,638,837 08/410,335 06/17/97
5,638,840 08/537,353 06/17/97
5,638,850 08/191,366 06/17/97
5,638,851 08/590,780 06/17/97
5,638,859 08/336,653 06/17/97
5,638,860 08/491,726 06/17/97
5,638,868 08/660,676 06/17/97
5,638,870 08/040,264 06/17/97
5,638,873 08/644,745 06/17/97
5,638,877 08/541,512 06/17/97
5,638,902 08/415,371 06/17/97
5,638,907 08/604,113 06/17/97
5,638,916 08/685,806 06/17/97
5,638,917 08/563,023 06/17/97
5,638,918 08/503,641 06/17/97
5,638,923 08/539,622 06/17/97
5,638,924 08/288,297 06/17/97
5,638,925 08/395,498 06/17/97
5,638,935 08/548,425 06/17/97
5,638,937 08/608,956 06/17/97
5,638,941 08/507,026 06/17/97
5,638,949 08/648,691 06/17/97
5,638,952 08/639,481 06/17/97
5,638,953 08/636,124 06/17/97
5,638,954 08/523,644 06/17/97
5,638,955 08/548,664 06/17/97
5,638,956 08/570,309 06/17/97
5,638,963 08/412,959 06/17/97
5,638,966 08/685,360 06/17/97
5,638,968 08/607,240 06/17/97
5,638,971 08/554,676 06/17/97
5,638,977 08/501,811 06/17/97
5,638,979 08/248,020 06/17/97
5,638,991 08/255,166 06/17/97
5,638,996 08/740,079 06/17/97
5,638,998 08/505,798 06/17/97
5,639,001 08/568,263 06/17/97
5,639,003 08/390,402 06/17/97
5,639,020 08/439,174 06/17/97
5,639,022 08/348,689 06/17/97
5,639,023 08/516,608 06/17/97
5,639,047 08/650,203 06/17/97
5,639,050 08/630,940 06/17/97
5,639,057 08/505,008 06/17/97
5,639,058 08/490,256 06/17/97
5,639,060 08/219,962 06/17/97
5,639,063 08/563,269 06/17/97
5,639,067 08/472,346 06/17/97
5,639,068 08/444,526 06/17/97
5,639,069 08/632,848 06/17/97
5,639,072 08/519,946 06/17/97
5,639,084 08/503,906 06/17/97
5,639,085 08/526,674 06/17/97
5,639,097 08/355,217 06/17/97
5,639,100 08/495,416 06/17/97
5,639,104 08/704,114 06/17/97
5,639,106 08/444,214 06/17/97
5,639,109 08/720,973 06/17/97
5,639,111 08/550,513 06/17/97
5,639,118 08/544,816 06/17/97
5,639,122 08/537,777 06/17/97
5,639,123 08/462,534 06/17/97
5,639,124 08/537,900 06/17/97
5,639,126 08/469,482 06/17/97
5,639,133 08/531,937 06/17/97
5,639,136 08/394,715 06/17/97
5,639,138 08/564,410 06/17/97
5,639,140 08/609,709 06/17/97
5,639,142 08/549,386 06/17/97
5,639,143 08/533,548 06/17/97
5,639,150 08/532,271 06/17/97
5,639,152 08/661,631 06/17/97
5,639,156 08/543,795 06/17/97
5,639,159 08/628,595 06/17/97
5,639,174 08/636,993 06/17/97
5,639,178 08/436,432 06/17/97
5,639,192 08/503,766 06/17/97
5,639,194 08/298,473 06/17/97
5,639,198 08/470,131 06/17/97
5,639,199 08/543,846 06/17/97
5,639,200 08/570,352 06/17/97
5,639,202 08/300,975 06/17/97
5,639,207 08/702,748 06/17/97
5,639,218 08/374,698 06/17/97
5,639,221 08/689,977 06/17/97
5,639,223 08/645,929 06/17/97
5,639,229 08/563,467 06/17/97
5,639,238 08/305,180 06/17/97
5,639,239 08/372,036 06/17/97
5,639,243 08/429,085 06/17/97
5,639,244 08/537,517 06/17/97
5,639,246 08/493,142 06/17/97
5,639,252 08/505,028 06/17/97
5,639,258 08/441,586 06/17/97
5,639,271 08/447,386 06/17/97
5,639,281 08/674,286 06/17/97
5,639,282 08/572,855 06/17/97
5,639,296 08/328,625 06/17/97
5,639,297 08/398,956 06/17/97
5,639,307 08/372,682 06/17/97
5,639,310 08/258,523 06/17/97
5,639,316 08/465,054 06/17/97
5,639,318 08/519,007 06/17/97
5,639,327 07/823,390 06/17/97
5,639,329 08/266,127 06/17/97
5,639,360 08/157,017 06/17/97
5,639,374 08/156,861 06/17/97
5,639,379 08/677,040 06/17/97
5,639,380 08/251,281 06/17/97
5,639,390 08/362,866 06/17/97
5,639,428 08/277,553 06/17/97
5,639,432 08/476,353 06/17/97
5,639,435 08/736,338 06/17/97
5,639,448 08/241,287 06/17/97
5,639,462 08/239,858 06/17/97
5,639,491 08/518,291 06/17/97
5,639,492 08/372,442 06/17/97
5,639,496 08/273,591 06/17/97
5,639,499 08/556,450 06/17/97
5,639,507 08/433,172 06/17/97
5,639,515 08/494,760 06/17/97
5,639,516 08/465,111 06/17/97
5,639,532 08/374,905 06/17/97
5,639,572 08/514,102 06/17/97
5,639,593 08/649,197 06/17/97
5,639,627 08/495,618 06/17/97
5,639,629 08/347,290 06/17/97
5,639,649 08/386,652 06/17/97
5,639,656 08/221,821 06/17/97
5,639,657 08/217,629 06/17/97
5,639,665 08/568,475 06/17/97
5,639,702 08/250,764 06/17/97
5,639,711 08/693,560 06/17/97
5,639,719 08/605,088 06/17/97
5,639,723 08/367,322 06/17/97
5,639,744 08/416,155 06/17/97
5,639,746 08/366,062 06/17/97
5,639,748 08/193,075 06/17/97
5,639,750 08/477,313 06/17/97
5,639,756 08/330,903 06/17/97
5,639,758 08/120,218 06/17/97
5,639,766 08/263,863 06/17/97
5,639,767 08/253,051 06/17/97
5,639,770 08/570,187 06/17/97
5,639,771 08/348,921 06/17/97
5,639,773 08/269,675 06/17/97
5,639,776 08/702,671 06/17/97
5,639,789 08/436,564 06/17/97
5,639,793 08/471,749 06/17/97
5,639,797 08/387,877 06/17/97
5,639,800 08/623,037 06/17/97
5,639,802 08/156,453 06/17/97
5,639,812 08/542,906 06/17/97
5,639,832 08/507,291 06/17/97
5,639,833 08/513,631 06/17/97
5,639,849 08/613,446 06/17/97
5,639,864 08/460,396 06/17/97
5,639,867 08/304,456 06/17/97
5,639,874 08/267,575 06/17/97
5,639,884 08/400,113 06/17/97
5,639,887 08/450,172 06/17/97
5,639,889 08/228,258 06/17/97
5,639,894 08/216,904 06/17/97
5,639,904 08/514,267 06/17/97
5,639,905 08/368,271 06/17/97
5,639,915 08/401,781 06/17/97
5,639,930 08/368,533 06/17/97
5,639,938 08/421,156 06/17/97
5,639,959 08/653,462 06/17/97
5,639,963 08/612,442 06/17/97
5,639,975 08/685,394 06/17/97
5,639,976 08/544,999 06/17/97
5,639,979 08/557,687 06/17/97
5,639,986 08/477,309 06/17/97
5,639,999 08/546,977 06/17/97
5,640,004 08/562,044 06/17/97
5,640,014 08/650,118 06/17/97
5,640,019 08/554,311 06/17/97
5,640,026 08/584,234 06/17/97
5,640,029 08/551,285 06/17/97
5,640,052 08/642,410 06/17/97
5,640,058 08/423,921 06/17/97
5,640,075 08/406,932 06/17/97
5,640,092 08/280,706 06/17/97
5,640,093 08/247,707 06/17/97
5,640,120 08/553,301 06/17/97
5,640,121 08/724,113 06/17/97
5,640,125 08/564,092 06/17/97
5,640,139 08/527,997 06/17/97
5,640,140 08/298,046 06/17/97
5,640,169 08/546,701 06/17/97
5,640,177 08/404,613 06/17/97
5,640,179 08/586,549 06/17/97
5,640,191 08/409,171 06/17/97
5,640,211 08/186,527 06/17/97
5,640,212 08/591,716 06/17/97
5,640,215 08/531,289 06/17/97
5,640,219 08/595,024 06/17/97
5,640,220 08/419,150 06/17/97
5,640,238 08/694,318 06/17/97
5,640,251 08/506,264 06/17/97
5,640,266 08/514,394 06/17/97
5,640,271 08/503,188 06/17/97
5,640,275 07/167,482 06/17/97
5,640,281 08/297,951 06/17/97
5,640,283 08/546,426 06/17/97
5,640,293 08/149,765 06/17/97
5,640,297 08/546,696 06/17/97
5,640,303 08/549,913 06/17/97
5,640,326 08/492,233 06/17/97
5,640,327 08/599,122 06/17/97
5,640,363 08/542,958 06/17/97
5,640,369 08/599,575 06/17/97
5,640,400 08/607,649 06/17/97
5,640,401 08/426,909 06/17/97
5,640,416 08/478,669 06/17/97
5,640,437 08/507,246 06/17/97
5,640,441 08/437,173 06/17/97
5,640,443 08/208,439 06/17/97
5,640,455 08/534,816 06/17/97
5,640,459 08/520,500 06/17/97
5,640,461 08/444,630 06/17/97
5,640,472 08/478,701 06/17/97
5,640,479 08/546,582 06/17/97
5,640,494 08/504,000 06/17/97
5,640,497 08/377,008 06/17/97
5,640,518 08/588,150 06/17/97
5,640,546 08/390,705 06/17/97
5,640,561 08/468,081 06/17/97
5,640,604 08/297,621 06/17/97
5,640,608 08/405,004 06/17/97
5,640,617 08/732,634 06/17/97
5,640,630 08/427,138 06/17/97
5,640,668 08/618,922 06/17/97
5,640,685 07/881,216 06/17/97