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 October 25, 2000 DUE TO FAILURE TO PAY MAINTENANCE FEES Patent Number Serial Number Issue Date 4,779,305 06/941,378 10/25/88 4,779,314 07/068,336 10/25/88 4,779,317 06/926,965 10/25/88 4,779,327 07/093,611 10/25/88 4,779,348 06/906,955 10/25/88 4,779,355 07/109,219 10/25/88 4,779,357 07/073,993 10/25/88 4,779,363 06/832,699 10/25/88 4,779,364 07/079,773 10/25/88 4,779,370 07/089,963 10/25/88 4,779,378 06/579,351 10/25/88 4,779,395 06/901,782 10/25/88 4,779,409 06/940,538 10/25/88 4,779,416 07/072,770 10/25/88 4,779,418 07/015,733 10/25/88 4,779,419 06/796,820 10/25/88 4,779,424 07/003,010 10/25/88 4,779,428 07/105,847 10/25/88 4,779,429 07/036,115 10/25/88 4,779,436 06/877,431 10/25/88 4,779,443 07/069,077 10/25/88 4,779,446 07/107,939 10/25/88 4,779,450 07/161,390 10/25/88 4,779,453 07/122,126 10/25/88 4,779,454 07/119,789 10/25/88 4,779,456 07/034,927 10/25/88 4,779,470 07/083,187 10/25/88 4,779,471 07/030,762 10/25/88 4,779,472 06/925,757 10/25/88 4,779,477 07/099,077 10/25/88 4,779,497 07/006,193 10/25/88 4,779,500 06/909,497 10/25/88 4,779,510 07/123,358 10/25/88 4,779,512 07/037,734 10/25/88 4,779,526 07/138,248 10/25/88 4,779,531 07/085,016 10/25/88 4,779,536 07/016,382 10/25/88 4,779,538 07/133,906 10/25/88 4,779,552 07/009,383 10/25/88 4,779,555 07/049,220 10/25/88 4,779,559 06/901,728 10/25/88 4,779,562 07/025,253 10/25/88 4,779,563 06/932,595 10/25/88 4,779,571 06/882,388 10/25/88 4,779,578 06/944,807 10/25/88 4,779,583 06/946,310 10/25/88 4,779,584 07/017,851 10/25/88 4,779,591 06/887,108 10/25/88 4,779,592 07/128,216 10/25/88 4,779,593 06/837,697 10/25/88 4,779,595 06/943,113 10/25/88 4,779,599 06/703,423 10/25/88 4,779,605 07/097,952 10/25/88 4,779,620 06/865,998 10/25/88 4,779,634 07/077,483 10/25/88 4,779,639 07/066,623 10/25/88 4,779,644 06/880,404 10/25/88 4,779,659 07/043,390 10/25/88 4,779,670 07/083,254 10/25/88 4,779,671 07/058,314 10/25/88 4,779,676 06/870,970 10/25/88 4,779,680 07/050,609 10/25/88 4,779,682 07/026,724 10/25/88 4,779,686 06/849,372 10/25/88 4,779,689 07/101,426 10/25/88 4,779,693 07/120,954 10/25/88 4,779,707 06/891,532 10/25/88 4,779,711 07/060,186 10/25/88 4,779,725 07/020,961 10/25/88 4,779,727 07/125,580 10/25/88 4,779,735 07/060,781 10/25/88 4,779,739 06/327,340 10/25/88 4,779,744 07/140,966 10/25/88 4,779,745 07/098,706 10/25/88 4,779,756 07/037,939 10/25/88 4,779,757 07/088,420 10/25/88 4,779,761 07/024,933 10/25/88 4,779,763 07/088,509 10/25/88 4,779,773 07/141,050 10/25/88 4,779,781 06/936,232 10/25/88 4,779,792 07/156,588 10/25/88 4,779,794 07/120,236 10/25/88 4,779,808 06/648,623 10/25/88 4,779,816 06/918,309 10/25/88 4,779,835 06/903,562 10/25/88 4,779,841 06/883,699 10/25/88 4,779,846 07/052,755 10/25/88 4,779,852 07/086,359 10/25/88 4,779,853 07/090,398 10/25/88 4,779,857 07/014,177 10/25/88 4,779,866 07/060,686 10/25/88 4,779,869 06/905,410 10/25/88 4,779,870 07/022,951 10/25/88 4,779,884 07/039,305 10/25/88 4,779,887 07/134,090 10/25/88 4,779,889 07/002,791 10/25/88 4,779,901 07/005,397 10/25/88 4,779,906 07/072,743 10/25/88 4,779,922 06/934,970 10/25/88 4,779,926 06/934,859 10/25/88 4,779,928 07/092,405 10/25/88 4,779,930 07/097,833 10/25/88 4,779,934 07/059,122 10/25/88 4,779,939 07/028,177 10/25/88 4,779,954 07/065,108 10/25/88 4,779,956 06/861,578 10/25/88 4,779,959 07/093,038 10/25/88 4,779,965 06/583,994 10/25/88 4,779,966 06/684,760 10/25/88 4,779,982 06/796,808 10/25/88 4,779,996 07/003,920 10/25/88 4,779,998 06/912,960 10/25/88 4,780,002 07/004,557 10/25/88 4,780,004 07/054,632 10/25/88 4,780,006 07/080,135 10/25/88 4,780,007 07/067,757 10/25/88 4,780,013 06/854,164 10/25/88 4,780,035 07/076,576 10/25/88 4,780,040 07/131,756 10/25/88 4,780,043 06/917,161 10/25/88 4,780,045 07/117,988 10/25/88 4,780,046 07/073,602 10/25/88 4,780,052 07/091,875 10/25/88 4,780,054 07/054,502 10/25/88 4,780,066 07/051,912 10/25/88 4,780,067 07/101,445 10/25/88 4,780,070 07/054,579 10/25/88 4,780,071 07/172,318 10/25/88 4,780,076 06/936,249 10/25/88 4,780,079 06/900,081 10/25/88 4,780,088 07/086,425 10/25/88 4,780,089 07/076,268 10/25/88 4,780,092 07/094,951 10/25/88 4,780,103 07/017,401 10/25/88 4,780,104 07/017,054 10/25/88 4,780,105 07/038,513 10/25/88 4,780,107 07/151,580 10/25/88 4,780,108 07/157,095 10/25/88 4,780,110 07/073,218 10/25/88 4,780,111 06/796,360 10/25/88 4,780,140 07/111,340 10/25/88 4,780,144 06/928,254 10/25/88 4,780,145 07/139,091 10/25/88 4,780,148 07/148,304 10/25/88 4,780,151 06/733,736 10/25/88 4,780,154 07/024,855 10/25/88 4,780,158 07/051,807 10/25/88 4,780,160 07/083,324 10/25/88 4,780,161 07/125,846 10/25/88 4,780,163 07/081,514 10/25/88 4,780,174 06/938,440 10/25/88 4,780,181 07/081,521 10/25/88 4,780,198 07/008,338 10/25/88 4,780,203 07/117,030 10/25/88 4,780,205 06/887,161 10/25/88 4,780,208 06/902,418 10/25/88 4,780,210 07/001,175 10/25/88 4,780,214 07/099,732 10/25/88 4,780,222 07/013,762 10/25/88 4,780,227 07/051,158 10/25/88 4,780,229 07/122,476 10/25/88 4,780,230 07/036,950 10/25/88 4,780,234 07/122,632 10/25/88 4,780,235 07/039,117 10/25/88 4,780,241 07/124,588 10/25/88 4,780,248 07/012,133 10/25/88 4,780,250 06/924,170 10/25/88 4,780,251 06/922,430 10/25/88 4,780,260 07/095,795 10/25/88 4,780,263 07/066,011 10/25/88 4,780,268 06/620,226 10/25/88 4,780,275 07/022,908 10/25/88 4,780,279 07/038,301 10/25/88 4,780,281 06/744,673 10/25/88 4,780,282 06/905,683 10/25/88 4,780,288 07/037,885 10/25/88 4,780,293 06/936,380 10/25/88 4,780,297 07/034,991 10/25/88 4,780,299 07/123,874 10/25/88 4,780,304 07/013,020 10/25/88 4,780,314 06/792,918 10/25/88 4,780,318 06/690,197 10/25/88 4,780,320 06/856,961 10/25/88 4,780,326 07/044,931 10/25/88 4,780,338 07/030,955 10/25/88 4,780,343 07/082,077 10/25/88 4,780,346 07/035,659 10/25/88 4,780,359 07/158,471 10/25/88 4,780,361 07/091,200 10/25/88 4,780,366 06/902,055 10/25/88 4,780,368 06/825,946 10/25/88 4,780,371 06/832,195 10/25/88 4,780,372 06/873,069 10/25/88 4,780,373 06/934,652 10/25/88 4,780,379 07/106,731 10/25/88 4,780,381 07/116,937 10/25/88 4,780,392 06/762,010 10/25/88 4,780,393 07/005,949 10/25/88 4,780,394 06/865,338 10/25/88 4,780,395 07/007,087 10/25/88 4,780,397 06/897,373 10/25/88 4,780,398 06/901,691 10/25/88 4,780,401 06/717,738 10/25/88 4,780,409 06/854,831 10/25/88 4,780,413 06/769,670 10/25/88 4,780,422 07/008,369 10/25/88 4,780,432 06/902,985 10/25/88 4,780,444 06/606,497 10/25/88 4,780,451 07/006,372 10/25/88 4,780,456 07/027,036 10/25/88 4,780,461 06/810,148 10/25/88 4,780,462 07/070,414 10/25/88 4,780,466 07/169,550 10/25/88 4,780,475 06/945,429 10/25/88 4,780,482 07/045,623 10/25/88 4,780,484 07/148,706 10/25/88 4,780,488 07/058,496 10/25/88 4,780,496 07/073,595 10/25/88 4,780,503 06/898,191 10/25/88 4,780,505 06/768,155 10/25/88 4,780,506 07/039,564 10/25/88 4,780,512 07/107,286 10/25/88 4,780,518 07/017,845 10/25/88 4,780,519 07/129,253 10/25/88 4,780,521 07/134,711 10/25/88 4,780,530 06/763,791 10/25/88 4,780,536 06/904,129 10/25/88 4,780,539 07/143,364 10/25/88 4,780,545 06/931,849 10/25/88 4,780,549 07/149,895 10/25/88 4,780,554 06/741,832 10/25/88 4,780,563 07/109,974 10/25/88 4,780,571 07/058,950 10/25/88 4,780,582 07/013,224 10/25/88 4,780,589 07/053,375 10/25/88 4,780,591 07/021,958 10/25/88 4,780,596 07/026,997 10/25/88 4,780,604 07/015,613 10/25/88 4,780,606 07/100,227 10/25/88 4,780,607 07/088,777 10/25/88 4,780,620 07/065,368 10/25/88 4,780,623 07/153,682 10/25/88 4,780,626 07/031,727 10/25/88 4,780,629 06/908,771 10/25/88 4,780,637 07/065,118 10/25/88 4,780,638 07/062,834 10/25/88 4,780,639 07/052,828 10/25/88 4,780,642 07/021,124 10/25/88 4,780,652 06/940,761 10/25/88 4,780,660 07/101,021 10/25/88 4,780,663 06/844,969 10/25/88 4,780,666 07/081,256 10/25/88 4,780,672 07/044,914 10/25/88 4,780,677 07/044,701 10/25/88 4,780,685 07/027,927 10/25/88 4,780,687 07/057,560 10/25/88 4,780,691 07/081,259 10/25/88 4,780,708 06/805,901 10/25/88 4,780,711 06/722,856 10/25/88 4,780,714 06/888,234 10/25/88 4,780,725 07/014,715 10/25/88 4,780,726 06/677,259 10/25/88 4,780,732 07/171,364 10/25/88 4,780,754 07/096,701 10/25/88 4,780,760 07/058,317 10/25/88 4,780,775 06/768,390 10/25/88 4,780,776 07/040,660 10/25/88 4,780,785 07/057,249 10/25/88 4,780,787 07/076,833 10/25/88 4,780,789 06/865,102 10/25/88 4,780,794 07/082,908 10/25/88 4,780,798 06/849,267 10/25/88 4,780,799 07/068,560 10/25/88 4,780,802 07/030,596 10/25/88 4,780,804 07/134,557 10/25/88 4,780,810 06/737,453 10/25/88 4,780,815 07/016,519 10/25/88 4,780,820 07/022,499 10/25/88 4,780,827 06/839,933 10/25/88 4,780,840 07/020,213 10/25/88 4,780,847 06/898,599 10/25/88 4,780,856 06/924,734 10/25/88 4,780,861 07/012,758 10/25/88 4,780,866 07/171,329 10/25/88 4,780,875 06/893,772 10/25/88 4,780,883 06/878,765 10/25/88 4,780,888 06/908,610 10/25/88 4,780,889 07/097,136 10/25/88 4,780,896 07/012,513 10/25/88 4,780,899 06/852,051 10/25/88 4,780,901 07/113,487 10/25/88 4,780,907 06/940,284 10/25/88 4,780,908 06/874,327 10/25/88<ql PATENTS WHICH EXPIRED ON October 20, 2000 DUE TO FAILURE TO PAY MAINTENANCE FEES 5,155,868 07/687,732 10/20/92 5,155,873 07/568,702 10/20/92 5,155,878 07/684,776 10/20/92 5,155,880 07/878,381 10/20/92 5,155,881 07/809,879 10/20/92 5,155,885 07/416,829 10/20/92 5,155,886 07/728,548 10/20/92 5,155,893 07/768,371 10/20/92 5,155,896 07/747,331 10/20/92 5,155,897 07/711,550 10/20/92 5,155,912 07/700,971 10/20/92 5,155,915 07/660,407 10/20/92 5,155,916 07/673,083 10/20/92 5,155,917 07/698,405 10/20/92 5,155,918 07/792,469 10/20/92 5,155,923 07/691,433 10/20/92 5,155,929 07/878,528 10/20/92 5,155,934 07/570,104 10/20/92 5,155,935 07/748,454 10/20/92 5,155,936 07/703,244 10/20/92 5,155,939 07/726,383 10/20/92 5,155,944 07/700,074 10/20/92 5,155,950 07/660,207 10/20/92 5,155,951 07/711,451 10/20/92 5,155,954 07/833,042 10/20/92 5,155,958 07/778,408 10/20/92 5,155,965 07/613,556 10/20/92 5,155,972 07/864,370 10/20/92 5,155,974 07/499,644 10/20/92 5,155,975 07/707,500 10/20/92 5,155,977 07/734,546 10/20/92 5,155,979 07/740,094 10/20/92 5,155,981 07/707,574 10/20/92 5,155,988 07/830,598 10/20/92 5,155,997 07/613,616 10/20/92 5,155,998 07/455,944 10/20/92 5,155,999 07/697,338 10/20/92 5,156,005 07/705,660 10/20/92 5,156,012 07/808,766 10/20/92 5,156,015 07/631,239 10/20/92 5,156,016 07/829,814 10/20/92 5,156,022 07/720,944 10/20/92 5,156,025 07/769,545 10/20/92 5,156,028 07/681,605 10/20/92 5,156,031 07/590,128 10/20/92 5,156,035 07/510,745 10/20/92 5,156,037 07/684,540 10/20/92 5,156,050 07/672,693 10/20/92 5,156,053 07/656,060 10/20/92 5,156,055 07/602,495 10/20/92 5,156,058 07/596,780 10/20/92 5,156,064 07/703,551 10/20/92 5,156,065 07/749,340 10/20/92 5,156,066 07/584,242 10/20/92 5,156,067 07/737,606 10/20/92 5,156,068 07/682,195 10/20/92 5,156,070 07/527,395 10/20/92 5,156,071 07/751,323 10/20/92 5,156,079 07/533,482 10/20/92 5,156,081 07/631,812 10/20/92 5,156,083 07/502,476 10/20/92 5,156,087 07/830,592 10/20/92 5,156,088 07/695,640 10/20/92 5,156,094 07/732,339 10/20/92 5,156,098 07/817,359 10/20/92 5,156,100 07/720,478 10/20/92 5,156,113 07/808,471 10/20/92 5,156,116 07/807,589 10/20/92 5,156,118 07/576,421 10/20/92 5,156,119 07/734,137 10/20/92 5,156,135 07/844,214 10/20/92 5,156,139 07/588,053 10/20/92 5,156,140 07/671,337 10/20/92 5,156,143 07/599,627 10/20/92 5,156,145 07/272,978 10/20/92 5,156,158 07/528,980 10/20/92 5,156,160 07/542,324 10/20/92 5,156,164 07/650,985 10/20/92 5,156,167 07/626,620 10/20/92 5,156,181 07/733,574 10/20/92 5,156,187 07/823,774 10/20/92 5,156,189 07/406,949 10/20/92 5,156,198 07/657,859 10/20/92 5,156,207 07/700,994 10/20/92 5,156,227 07/572,842 10/20/92 5,156,230 07/631,651 10/20/92 5,156,234 07/761,470 10/20/92 5,156,238 07/793,167 10/20/92 5,156,242 07/798,942 10/20/92 5,156,253 07/673,296 10/20/92 5,156,254 07/827,532 10/20/92 5,156,259 07/708,701 10/20/92 5,156,271 07/785,446 10/20/92 5,156,274 07/813,108 10/20/92 5,156,276 07/772,565 10/20/92 5,156,279 07/675,071 10/20/92 5,156,281 07/673,889 10/20/92 5,156,287 07/756,740 10/20/92 5,156,289 07/750,739 10/20/92 5,156,300 07/787,693 10/20/92 5,156,307 07/673,534 10/20/92 5,156,309 07/652,230 10/20/92 5,156,310 07/739,335 10/20/92 5,156,312 07/459,343 10/20/92 5,156,314 07/701,029 10/20/92 5,156,318 07/777,075 10/20/92 5,156,322 07/713,588 10/20/92 5,156,325 07/630,811 10/20/92 5,156,327 07/680,505 10/20/92 5,156,352 07/639,659 10/20/92 5,156,355 07/548,255 10/20/92 5,156,362 07/708,330 10/20/92 5,156,363 07/661,940 10/20/92 5,156,364 07/604,687 10/20/92 5,156,370 07/664,194 10/20/92 5,156,381 07/671,082 10/20/92 5,156,382 07/773,123 10/20/92 5,156,395 07/811,115 10/20/92 5,156,398 07/833,352 10/20/92 5,156,402 07/699,328 10/20/92 5,156,412 07/652,786 10/20/92 5,156,415 07/766,643 10/20/92 5,156,419 07/699,356 10/20/92 5,156,422 07/820,788 10/20/92 5,156,423 07/712,023 10/20/92 5,156,426 07/686,928 10/20/92 5,156,428 07/764,768 10/20/92 5,156,430 07/810,123 10/20/92 5,156,434 07/791,919 10/20/92 5,156,439 07/744,388 10/20/92 5,156,443 07/756,053 10/20/92 5,156,450 07/650,919 10/20/92 5,156,453 07/659,261 10/20/92 5,156,463 07/702,277 10/20/92 5,156,484 07/739,171 10/20/92 5,156,498 07/678,156 10/20/92 5,156,501 07/741,848 10/20/92 5,156,509 07/753,903 10/20/92 5,156,513 07/770,776 10/20/92 5,156,519 07/438,462 10/20/92 5,156,530 07/639,198 10/20/92 5,156,532 07/707,040 10/20/92 5,156,533 06/914,870 10/20/92 5,156,536 07/588,371 10/20/92 5,156,541 07/696,586 10/20/92 5,156,544 07/736,796 10/20/92 5,156,545 07/557,776 10/20/92 5,156,550 07/775,794 10/20/92 5,156,553 07/689,348 10/20/92 5,156,554 07/733,503 10/20/92 5,156,555 07/746,638 10/20/92 5,156,566 07/846,123 10/20/92 5,156,567 07/538,575 10/20/92 5,156,568 07/841,894 10/20/92 5,156,572 07/626,436 10/20/92 5,156,581 07/718,950 10/20/92 5,156,590 07/719,438 10/20/92 5,156,597 07/630,265 10/20/92 5,156,603 07/735,680 10/20/92 5,156,605 07/713,483 10/20/92 5,156,611 07/474,877 10/20/92 5,156,615 07/794,736 10/20/92 5,156,618 07/797,197 10/20/92 5,156,620 07/649,974 10/20/92 5,156,622 07/371,538 10/20/92 5,156,630 07/697,884 10/20/92 5,156,637 07/664,358 10/20/92 5,156,639 07/793,915 10/20/92 5,156,642 07/745,745 10/20/92 5,156,643 07/800,055 10/20/92 5,156,646 07/699,388 10/20/92 5,156,651 07/564,710 10/20/92 5,156,659 07/681,292 10/20/92 5,156,660 07/723,193 10/20/92 5,156,662 07/868,425 10/20/92 5,156,665 07/637,087 10/20/92 5,156,670 07/709,463 10/20/92 5,156,673 07/127,976 10/20/92 5,156,677 07/883,086 10/20/92 5,156,682 07/469,562 10/20/92 5,156,684 07/575,945 10/20/92 5,156,686 07/621,039 10/20/92 5,156,690 07/616,654 10/20/92 5,156,700 07/726,667 10/20/92 5,156,704 07/531,941 10/20/92 5,156,710 07/695,850 10/20/92 5,156,716 07/691,914 10/20/92 5,156,733 07/749,087 10/20/92 5,156,735 07/583,126 10/20/92 5,156,748 07/752,509 10/20/92 5,156,752 07/728,534 10/20/92 5,156,759 07/698,869 10/20/92 5,156,765 07/523,886 10/20/92 5,156,774 07/482,946 10/20/92 5,156,778 07/674,360 10/20/92 5,156,794 07/720,673 10/20/92 5,156,807 07/769,253 10/20/92 5,156,810 07/366,651 10/20/92 5,156,813 07/552,434 10/20/92 5,156,814 07/622,491 10/20/92 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10/20/92<ql PATENTS WHICH EXPIRED ON October 22, 2000 DUE TO FAILURE TO PAY MAINTENANCE FEES 5,566,389 08/486,134 10/22/96 5,566,392 08/349,674 10/22/96 5,566,394 08/233,103 10/22/96 5,566,396 08/484,017 10/22/96 5,566,397 08/360,272 10/22/96 5,566,398 08/404,043 10/22/96 5,566,401 08/359,476 10/22/96 5,566,405 08/412,824 10/22/96 5,566,408 08/572,060 10/22/96 5,566,409 08/270,168 10/22/96 5,566,415 08/579,338 10/22/96 5,566,417 08/380,376 10/22/96 5,566,426 08/439,888 10/22/96 5,566,430 08/489,161 10/22/96 5,566,441 08/209,046 10/22/96 5,566,443 08/321,729 10/22/96 5,566,449 08/292,691 10/22/96 5,566,452 08/396,764 10/22/96 5,566,453 08/529,955 10/22/96 5,566,454 08/523,291 10/22/96 5,566,457 08/295,878 10/22/96 5,566,459 08/160,250 10/22/96 5,566,460 08/282,056 10/22/96 5,566,465 08/384,151 10/22/96 5,566,473 08/315,911 10/22/96 5,566,476 08/467,073 10/22/96 5,566,477 08/225,134 10/22/96 5,566,480 08/244,600 10/22/96 5,566,481 08/369,236 10/22/96 5,566,483 08/295,159 10/22/96 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