United States Patent and Trademark Office OG Notices: 01 January 2002

                        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 31, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                          Issue
Number                         Number                           Date

4,876,752                      07/271,204                   10/31/89
4,876,755                      07/236,233                   10/31/89
4,876,761                      07/154,228                   10/31/89
4,876,764                      07/258,704                   10/31/89
4,876,783                      07/064,805                   10/31/89
4,876,786                      07/278,122                   10/31/89
4,876,787                      07/208,686                   10/31/89
4,876,797                      07/297,029                   10/31/89
4,876,798                      07/142,649                   10/31/89
4,876,800                      07/254,978                   10/31/89
4,876,809                      07/134,505                   10/31/89
4,876,813                      07/280,988                   10/31/89
4,876,825                      07/126,709                   10/31/89
4,876,828                      07/147,898                   10/31/89
4,876,831                      07/167,885                   10/31/89
4,876,847                      07/147,326                   10/31/89
4,876,869                      07/214,054                   10/31/89
4,876,889                      07/215,374                   10/31/89
4,876,893                      07/137,822                   10/31/89
4,876,895                      07/181,355                   10/31/89
4,876,899                      07/264,754                   10/31/89
4,876,903                      07/169,651                   10/31/89
4,876,908                      07/044,269                   10/31/89
4,876,910                      07/169,508                   10/31/89
4,876,912                      07/257,965                   10/31/89
4,876,922                      07/200,147                   10/31/89
4,876,932                      07/232,908                   10/31/89
4,876,933                      07/171,668                   10/31/89
4,876,940                      07/181,756                   10/31/89
4,876,942                      07/322,690                   10/31/89
4,876,945                      07/257,387                   10/31/89
4,876,953                      07/333,199                   10/31/89
4,876,962                      07/227,565                   10/31/89
4,876,964                      07/224,244                   10/31/89
4,876,966                      07/060,081                   10/31/89
4,876,973                      06/647,062                   10/31/89
4,876,978                      07/217,225                   10/31/89
4,876,980                      07/274,834                   10/31/89
4,876,983                      07/145,371                   10/31/89
4,876,984                      07/204,279                   10/31/89
4,876,987                      07/211,934                   10/31/89
4,876,989                      07/192,243                   10/31/89
4,876,993                      07/217,655                   10/31/89
4,876,998                      07/245,829                   10/31/89
4,877,004                      07/283,227                   10/31/89
4,877,010                      07/285,660                   10/31/89
4,877,022                      07/292,225                   10/31/89
4,877,046                      07/222,079                   10/31/89
4,877,048                      07/257,594                   10/31/89
4,877,056                      07/330,577                   10/31/89
4,877,065                      06/557,281                   10/31/89
4,877,070                      07/219,254                   10/31/89
4,877,071                      07/164,218                   10/31/89
4,877,074                      07/306,490                   10/31/89
4,877,075                      06/586,771                   10/31/89
4,877,088                      07/143,535                   10/31/89
4,877,097                      07/190,956                   10/31/89
4,877,100                      07/231,808                   10/31/89
4,877,121                      07/110,687                   10/31/89
4,877,122                      07/189,239                   10/31/89
4,877,144                      07/168,957                   10/31/89
4,877,156                      07/132,634                   10/31/89
4,877,168                      07/213,899                   10/31/89
4,877,171                      07/243,813                   10/31/89
4,877,174                      07/289,996                   10/31/89
4,877,176                      07/125,152                   10/31/89
4,877,188                      07/200,002                   10/31/89
4,877,189                      07/050,965                   10/31/89
4,877,202                      07/277,576                   10/31/89
4,877,203                      07/098,500                   10/31/89
4,877,204                      07/333,740                   10/31/89
4,877,207                      07/128,011                   10/31/89
4,877,225                      07/176,276                   10/31/89
4,877,229                      07/213,562                   10/31/89
4,877,235                      07/218,954                   10/31/89
4,877,243                      07/068,896                   10/31/89
4,877,267                      07/245,703                   10/31/89
4,877,268                      07/259,868                   10/31/89
4,877,274                      07/092,001                   10/31/89
4,877,282                      07/181,761                   10/31/89
4,877,284                      07/276,927                   10/31/89
4,877,296                      07/220,168                   10/31/89
4,877,299                      07/323,736                   10/31/89
4,877,302                      07/179,104                   10/31/89
4,877,305                      07/165,693                   10/31/89
4,877,317                      07/002,061                   10/31/89
4,877,320                      07/252,541                   10/31/89
4,877,321                      07/311,424                   10/31/89
4,877,328                      07/183,564                   10/31/89
4,877,339                      07/304,123                   10/31/89
4,877,341                      07/302,331                   10/31/89
4,877,344                      07/182,679                   10/31/89
4,877,357                      07/141,322                   10/31/89
4,877,364                      07/054,299                   10/31/89
4,877,372                      07/240,085                   10/31/89
4,877,378                      07/095,171                   10/31/89
4,877,381                      07/193,750                   10/31/89
4,877,382                      07/189,485                   10/31/89
4,877,393                      07/277,815                   10/31/89
4,877,394                      06/496,894                   10/31/89
4,877,401                      07/165,807                   10/31/89
4,877,402                      07/217,145                   10/31/89
4,877,407                      07/201,396                   10/31/89
4,877,421                      07/115,927                   10/31/89
4,877,429                      07/319,095                   10/31/89
4,877,430                      07/234,131                   10/31/89
4,877,434                      07/060,034                   10/31/89
4,877,445                      07/214,042                   10/31/89
4,877,454                      07/152,212                   10/31/89
4,877,456                      07/277,828                   10/31/89
4,877,474                      07/172,934                   10/31/89
4,877,476                      07/267,281                   10/31/89
4,877,479                      07/212,272                   10/31/89
4,877,494                      07/320,071                   10/31/89
4,877,500                      07/213,543                   10/31/89
4,877,516                      07/153,833                   10/31/89
4,877,523                      07/326,498                   10/31/89
4,877,524                      07/310,208                   10/31/89
4,877,530                      07/161,999                   10/31/89
4,877,536                      07/132,360                   10/31/89
4,877,542                      07/192,194                   10/31/89
4,877,544                      07/183,512                   10/31/89
4,877,549                      07/160,188                   10/31/89
4,877,553                      07/203,312                   10/31/89
4,877,568                      07/195,255                   10/31/89
4,877,570                      07/251,817                   10/31/89
4,877,573                      07/270,409                   10/31/89
4,877,581                      07/239,257                   10/31/89
4,877,590                      07/155,864                   10/31/89
4,877,591                      07/025,350                   10/31/89
4,877,592                      07/239,956                   10/31/89
4,877,599                      07/220,376                   10/31/89
4,877,613                      07/081,942                   10/31/89
4,877,615                      07/248,438                   10/31/89
4,877,632                      07/233,433                   10/31/89
4,877,635                      07/111,918                   10/31/89
4,877,643                      07/292,465                   10/31/89
4,877,658                      07/158,536                   10/31/89
4,877,675                      07/250,868                   10/31/89
4,877,685                      07/055,032                   10/31/89
4,877,686                      07/253,413                   10/31/89
4,877,688                      07/160,749                   10/31/89
4,877,690                      07/317,401                   10/31/89
4,877,695                      07/265,652                   10/31/89
4,877,725                      06/718,140                   10/31/89
4,877,726                      07/163,300                   10/31/89
4,877,733                      07/042,655                   10/31/89
4,877,737                      06/773,430                   10/31/89
4,877,740                      07/060,071                   10/31/89
4,877,741                      07/261,302                   10/31/89
4,877,750                      07/254,836                   10/31/89
4,877,756                      07/175,356                   10/31/89
4,877,758                      07/288,783                   10/31/89
4,877,762                      07/234,804                   10/31/89
4,877,777                      07/182,550                   10/31/89
4,877,792                      07/023,752                   10/31/89
4,877,796                      07/084,456                   10/31/89
4,877,799                      07/106,154                   10/31/89
4,877,803                      07/031,011                   10/31/89
4,877,807                      07/197,274                   10/31/89
4,877,808                      07/185,422                   10/31/89
4,877,809                      07/174,883                   10/31/89
4,877,817                      07/287,066                   10/31/89
4,877,818                      07/142,110                   10/31/89
4,877,821                      07/154,776                   10/31/89
4,877,833                      07/117,561                   10/31/89
4,877,837                      07/254,617                   10/31/89
4,877,842                      07/161,863                   10/31/89
4,877,844                      07/135,470                   10/31/89
4,877,851                      07/224,509                   10/31/89
4,877,855                      07/228,413                   10/31/89
4,877,858                      07/272,010                   10/31/89
4,877,862                      07/337,712                   10/31/89
4,877,870                      07/068,630                   10/31/89
4,877,894                      07/142,703                   10/31/89
4,877,900                      07/177,951                   10/31/89
4,877,909                      07/126,106                   10/31/89
4,877,910                      07/303,366                   10/31/89
4,877,911                      07/303,422                   10/31/89
4,877,912                      07/303,356                   10/31/89
4,877,913                      07/303,355                   10/31/89
4,877,914                      07/303,419                   10/31/89
4,877,915                      07/303,364                   10/31/89
4,877,916                      07/303,365                   10/31/89
4,877,918                      07/232,231                   10/31/89
4,877,922                      07/330,936                   10/31/89
4,877,928                      07/222,639                   10/31/89
4,877,929                      07/233,032                   10/31/89
4,877,931                      07/228,653                   10/31/89
4,877,933                      07/144,520                   10/31/89
4,877,942                      07/221,207                   10/31/89
4,877,945                      07/118,603                   10/31/89
4,877,946                      06/852,659                   10/31/89
4,877,953                      07/245,174                   10/31/89
4,877,957                      07/070,775                   10/31/89
4,877,962                      07/188,485                   10/31/89
4,877,964                      07/221,229                   10/31/89
4,877,966                      07/150,293                   10/31/89
4,877,969                      07/168,234                   10/31/89
4,877,973                      07/117,195                   10/31/89
4,877,979                      07/126,380                   10/31/89
4,878,015                      07/044,506                   10/31/89
4,878,021                      07/256,403                   10/31/89
4,878,023                      07/233,310                   10/31/89
4,878,038                      07/129,651                   10/31/89
4,878,040                      07/159,831                   10/31/89
4,878,046                      07/079,553                   10/31/89
4,878,048                      07/230,641                   10/31/89
4,878,049                      06/716,254                   10/31/89
4,878,050                      07/022,724                   10/31/89
4,878,057                      07/014,461                   10/31/89
4,878,059                      06/524,533                   10/31/89
4,878,067                      07/267,668                   10/31/89
4,878,071                      07/166,716                   10/31/89
4,878,090                      07/235,948                   10/31/89
4,878,103                      07/297,651                   10/31/89
4,878,107                      07/084,795                   10/31/89
4,878,110                      07/085,087                   10/31/89
4,878,137                      07/151,665                   10/31/89
4,878,156                      07/319,048                   10/31/89
4,878,158                      07/259,148                   10/31/89
4,878,165                      07/030,610                   10/31/89
4,878,172                      07/131,192                   10/31/89
4,878,186                      07/093,997                   10/31/89
4,878,205                      07/217,269                   10/31/89
4,878,208                      07/250,853                   10/31/89
4,878,216                      07/163,096                   10/31/89
4,878,218                      07/235,553                   10/31/89
4,878,231                      07/162,455                   10/31/89
4,878,251                      06/856,327                   10/31/89

                   PATENTS WHICH EXPIRED ON October 26, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                          Issue
Number                         Number                           Date

5,255,390                      07/984,754                   10/26/93
5,255,392                      07/712,923                   10/26/93
5,255,393                      07/732,126                   10/26/93
5,255,394                      07/976,273                   10/26/93
5,255,395                      07/898,434                   10/26/93
5,255,401                      08/000,414                   10/26/93
5,255,408                      07/833,994                   10/26/93
5,255,411                      07/822,239                   10/26/93
5,255,413                      07/896,192                   10/26/93
5,255,417                      07/843,457                   10/26/93
5,255,419                      07/658,006                   10/26/93
5,255,423                      07/772,796                   10/26/93
5,255,439                      07/842,412                   10/26/93
5,255,447                      07/840,769                   10/26/93
5,255,448                      07/900,565                   10/26/93
5,255,454                      07/905,741                   10/26/93
5,255,457                      07/789,598                   10/26/93
5,255,458                      07/795,503                   10/26/93
5,255,461                      07/967,168                   10/26/93
5,255,469                      07/513,960                   10/26/93
5,255,471                      07/755,679                   10/26/93
5,255,476                      07/827,280                   10/26/93
5,255,488                      07/870,946                   10/26/93
5,255,492                      07/960,019                   10/26/93
5,255,496                      07/829,053                   10/26/93
5,255,502                      07/810,350                   10/26/93
5,255,507                      07/877,808                   10/26/93
5,255,509                      07/777,928                   10/26/93
5,255,515                      07/981,844                   10/26/93
5,255,517                      07/838,406                   10/26/93
5,255,522                      07/835,642                   10/26/93
5,255,524                      07/835,640                   10/26/93
5,255,525                      07/890,226                   10/26/93
5,255,526                      07/852,307                   10/26/93
5,255,527                      07/815,775                   10/26/93
5,255,528                      07/894,053                   10/26/93
5,255,532                      07/951,754                   10/26/93
5,255,533                      07/996,527                   10/26/93
5,255,535                      07/813,487                   10/26/93
5,255,536                      07/814,704                   10/26/93
5,255,540                      07/546,119                   10/26/93
5,255,543                      07/745,008                   10/26/93
5,255,544                      07/966,519                   10/26/93
5,255,545                      07/864,570                   10/26/93
5,255,555                      07/874,465                   10/26/93
5,255,562                      07/957,733                   10/26/93
5,255,563                      07/750,316                   10/26/93
5,255,564                      07/750,141                   10/26/93
5,255,566                      07/867,305                   10/26/93
5,255,575                      07/905,828                   10/26/93
5,255,602                      07/941,399                   10/26/93
5,255,605                      07/547,593                   10/26/93
5,255,606                      07/679,207                   10/26/93
5,255,612                      07/965,788                   10/26/93
5,255,618                      07/818,087                   10/26/93
5,255,621                      07/903,596                   10/26/93
5,255,623                      07/881,113                   10/26/93
5,255,632                      07/869,226                   10/26/93
5,255,635                      07/803,348                   10/26/93
5,255,648                      07/883,352                   10/26/93
5,255,652                      08/028,878                   10/26/93
5,255,653                      08/031,755                   10/26/93
5,255,660                      07/777,543                   10/26/93
5,255,661                      07/933,551                   10/26/93
5,255,670                      07/910,082                   10/26/93
5,255,674                      07/766,735                   10/26/93
5,255,678                      07/719,006                   10/26/93
5,255,682                      07/613,334                   10/26/93
5,255,686                      07/907,795                   10/26/93
5,255,689                      07/869,131                   10/26/93
5,255,698                      07/867,508                   10/26/93
5,255,702                      07/702,373                   10/26/93
5,255,704                      08/009,663                   10/26/93
5,255,705                      07/210,245                   10/26/93
5,255,715                      07/945,520                   10/26/93
5,255,718                      07/944,895                   10/26/93
5,255,719                      07/882,557                   10/26/93
5,255,722                      07/849,755                   10/26/93
5,255,723                      07/934,028                   10/26/93
5,255,729                      07/795,105                   10/26/93
5,255,730                      07/743,349                   10/26/93
5,255,748                      07/821,485                   10/26/93
5,255,755                      07/860,412                   10/26/93
5,255,756                      07/872,581                   10/26/93
5,255,758                      07/660,568                   10/26/93
5,255,762                      07/753,118                   10/26/93
5,255,767                      07/937,338                   10/26/93
5,255,769                      07/846,219                   10/26/93
5,255,776                      07/812,723                   10/26/93
5,255,793                      07/870,882                   10/26/93
5,255,800                      07/921,626                   10/26/93
5,255,806                      07/695,599                   10/26/93
5,255,810                      07/980,922                   10/26/93
5,255,822                      07/981,408                   10/26/93
5,255,823                      07/886,765                   10/26/93
5,255,829                      07/862,554                   10/26/93
5,255,831                      07/970,864                   10/26/93
5,255,834                      07/807,170                   10/26/93
5,255,836                      08/008,258                   10/26/93
5,255,850                      07/908,676                   10/26/93
5,255,851                      07/933,934                   10/26/93
5,255,857                      07/605,384                   10/26/93
5,255,859                      07/577,287                   10/26/93
5,255,860                      07/930,741                   10/26/93
5,255,864                      07/963,653                   10/26/93
5,255,871                      08/044,027                   10/26/93
5,255,874                      07/911,010                   10/26/93
5,255,875                      07/876,536                   10/26/93
5,255,880                      07/912,407                   10/26/93
5,255,893                      07/941,956                   10/26/93
5,255,899                      07/915,595                   10/26/93
5,255,901                      08/000,673                   10/26/93
5,255,910                      07/900,173                   10/26/93
5,255,920                      07/920,091                   10/26/93
5,255,921                      07/909,265                   10/26/93
5,255,923                      07/768,879                   10/26/93
5,255,926                      07/856,759                   10/26/93
5,255,932                      07/728,429                   10/26/93
5,255,936                      07/871,798                   10/26/93
5,255,940                      07/846,893                   10/26/93
5,255,942                      07/824,533                   10/26/93
5,255,950                      07/789,496                   10/26/93
5,255,955                      07/975,813                   10/26/93
5,255,960                      07/838,796                   10/26/93
5,255,964                      07/889,395                   10/26/93
5,255,968                      07/627,069                   10/26/93
5,255,974                      07/754,739                   10/26/93
5,255,979                      08/011,910                   10/26/93
5,255,981                      08/010,850                   10/26/93
5,255,992                      08/006,792                   10/26/93
5,255,993                      07/880,263                   10/26/93
5,255,996                      07/783,008                   10/26/93
5,255,997                      07/705,745                   10/26/93
5,256,000                      07/931,151                   10/26/93
5,256,007                      07/718,581                   10/26/93
5,256,010                      07/890,614                   10/26/93
5,256,015                      07/835,155                   10/26/93
5,256,016                      07/790,255                   10/26/93
5,256,020                      07/905,399                   10/26/93
5,256,027                      07/847,073                   10/26/93
5,256,031                      07/952,259                   10/26/93
5,256,046                      07/741,142                   10/26/93
5,256,059                      07/855,713                   10/26/93
5,256,073                      07/892,684                   10/26/93
5,256,077                      07/853,029                   10/26/93
5,256,078                      07/957,306                   10/26/93
5,256,086                      07/985,786                   10/26/93
5,256,095                      07/976,582                   10/26/93
5,256,099                      07/854,318                   10/26/93
5,256,102                      07/685,753                   10/26/93
5,256,103                      07/838,859                   10/26/93
5,256,104                      07/928,756                   10/26/93
5,256,107                      08/015,670                   10/26/93
5,256,108                      07/918,076                   10/26/93
5,256,115                      07/675,082                   10/26/93
5,256,117                      07/594,872                   10/26/93
5,256,121                      07/747,759                   10/26/93
5,256,122                      07/873,698                   10/26/93
5,256,139                      07/836,413                   10/26/93
5,256,140                      07/859,327                   10/26/93
5,256,151                      07/973,556                   10/26/93
5,256,154                      07/829,106                   10/26/93
5,256,160                      07/764,366                   10/26/93
5,256,164                      07/999,577                   10/26/93
5,256,165                      07/817,219                   10/26/93
5,256,167                      07/885,463                   10/26/93
5,256,176                      07/668,042                   10/26/93
5,256,184                      07/780,439                   10/26/93
5,256,187                      07/975,062                   10/26/93
5,256,188                      07/939,934                   10/26/93
5,256,189                      07/885,761                   10/26/93
5,256,193                      07/904,318                   10/26/93
5,256,202                      07/752,628                   10/26/93
5,256,208                      07/769,829                   10/26/93
5,256,214                      07/896,523                   10/26/93
5,256,219                      07/878,719                   10/26/93
5,256,221                      07/754,939                   10/26/93
5,256,238                      07/983,621                   10/26/93
5,256,251                      07/712,723                   10/26/93
5,256,252                      07/913,648                   10/26/93
5,256,257                      07/826,364                   10/26/93
5,256,259                      08/038,497                   10/26/93
5,256,260                      07/745,925                   10/26/93
5,256,269                      07/801,759                   10/26/93
5,256,271                      07/714,901                   10/26/93
5,256,274                      07/799,734                   10/26/93
5,256,276                      07/884,671                   10/26/93
5,256,277                      07/734,991                   10/26/93
5,256,279                      07/905,578                   10/26/93
5,256,281                      07/717,973                   10/26/93
5,256,284                      07/850,435                   10/26/93
5,256,285                      07/811,935                   10/26/93
5,256,287                      07/975,620                   10/26/93
5,256,290                      07/869,316                   10/26/93
5,256,299                      07/547,505                   10/26/93
5,256,301                      07/861,529                   10/26/93
5,256,302                      07/884,668                   10/26/93
5,256,306                      07/772,169                   10/26/93
5,256,308                      07/932,162                   10/26/93
5,256,309                      07/798,838                   10/26/93
5,256,312                      07/907,584                   10/26/93
5,256,325                      08/012,975                   10/26/93
5,256,326                      07/702,396                   10/26/93
5,256,330                      07/799,074                   10/26/93
5,256,331                      07/704,478                   10/26/93
5,256,337                      07/926,142                   10/26/93
5,256,343                      07/815,216                   10/26/93
5,256,345                      07/773,571                   10/26/93
5,256,348                      07/714,686                   10/26/93
5,256,372                      07/446,009                   10/26/93
5,256,374                      07/677,095                   10/26/93
5,256,382                      07/741,406                   10/26/93
5,256,383                      07/929,677                   10/26/93
5,256,387                      07/973,964                   10/26/93
5,256,389                      07/704,918                   10/26/93
5,256,391                      07/943,644                   10/26/93
5,256,396                      07/469,198                   10/26/93
5,256,397                      07/862,031                   10/26/93
5,256,403                      07/638,695                   10/26/93
5,256,405                      07/814,569                   10/26/93
5,256,406                      07/810,863                   10/26/93
5,256,413                      07/946,015                   10/26/93
5,256,416                      07/659,313                   10/26/93
5,256,419                      08/023,465                   10/26/93
5,256,420                      07/812,780                   10/26/93
5,256,427                      07/747,834                   10/26/93
5,256,439                      07/963,916                   10/26/93
5,256,443                      07/883,666                   10/26/93
5,256,445                      07/890,166                   10/26/93
5,256,448                      07/775,124                   10/26/93
5,256,462                      07/650,855                   10/26/93
5,256,473                      07/764,195                   10/26/93
5,256,478                      07/852,568                   10/26/93
5,256,480                      07/774,540                   10/26/93
5,256,484                      07/746,406                   10/26/93
5,256,490                      07/911,614                   10/26/93
5,256,493                      07/688,022                   10/26/93
5,256,498                      07/865,239                   10/26/93
5,256,500                      07/822,949                   10/26/93
5,256,514                      07/978,584                   10/26/93
5,256,515                      07/978,572                   10/26/93
5,256,516                      07/922,420                   10/26/93
5,256,517                      07/694,353                   10/26/93
5,256,521                      08/011,572                   10/26/93
5,256,524                      07/753,873                   10/26/93
5,256,532                      07/345,436                   10/26/93
5,256,540                      07/636,066                   10/26/93
5,256,565                      07/348,982                   10/26/93
5,256,573                      07/822,896                   10/26/93
5,256,579                      07/332,695                   10/26/93
5,256,580                      07/864,101                   10/26/93
5,256,590                      07/870,951                   10/26/93
5,256,593                      07/955,456                   10/26/93
5,256,597                      07/941,346                   10/26/93
5,256,605                      07/845,117                   10/26/93
5,256,611                      07/910,439                   10/26/93
5,256,613                      07/935,975                   10/26/93
5,256,614                      07/946,859                   10/26/93
5,256,616                      07/629,664                   10/26/93
5,256,627                      07/720,098                   10/26/93
5,256,628                      07/936,991                   10/26/93
5,256,632                      07/900,867                   10/26/93
5,256,633                      07/870,386                   10/26/93
5,256,638                      07/791,834                   10/26/93
5,256,640                      07/768,142                   10/26/93
5,256,649                      07/887,604                   10/26/93
5,256,651                      07/890,293                   10/26/93
5,256,657                      07/747,887                   10/26/93
5,256,669                      07/926,719                   10/26/93
5,256,675                      07/867,085                   10/26/93
5,256,676                      07/918,080                   10/26/93
5,256,678                      07/886,803                   10/26/93
5,256,685                      07/857,427                   10/26/93
5,256,693                      07/867,367                   10/26/93
5,256,703                      07/757,977                   10/26/93
5,256,712                      07/897,612                   10/26/93
5,256,725                      07/894,326                   10/26/93
5,256,726                      07/760,047                   10/26/93
5,256,730                      07/906,846                   10/26/93
5,256,733                      07/741,359                   10/26/93
5,256,735                      07/774,984                   10/26/93
5,256,737                      07/784,683                   10/26/93
5,256,740                      07/876,312                   10/26/93
5,256,741                      08/019,406                   10/26/93
5,256,750                      07/889,435                   10/26/93
5,256,755                      07/923,640                   10/26/93
5,256,760                      07/884,965                   10/26/93
5,256,763                      07/797,869                   10/26/93
5,256,779                      07/900,861                   10/26/93
5,256,786                      07/844,816                   10/26/93
5,256,787                      07/971,446                   10/26/93
5,256,789                      07/835,934                   10/26/93
5,256,795                      07/918,827                   10/26/93
5,256,804                      07/955,995                   10/26/93
5,256,806                      07/975,256                   10/26/93
5,256,814                      07/919,633                   10/26/93
5,256,815                      07/975,035                   10/26/93
5,256,818                      07/790,369                   10/26/93
5,256,824                      07/665,669                   10/26/93
5,256,828                      08/022,843                   10/26/93
5,256,836                      07/764,062                   10/26/93
5,256,837                      07/787,319                   10/26/93
5,256,848                      07/758,102                   10/26/93
5,256,849                      07/771,397                   10/26/93
5,256,852                      07/774,357                   10/26/93
5,256,855                      07/859,001                   10/26/93
5,256,857                      07/571,379                   10/26/93
5,256,858                      07/752,076                   10/26/93
5,256,859                      07/715,575                   10/26/93
5,256,861                      07/682,069                   10/26/93
5,256,877                      07/894,764                   10/26/93
5,256,878                      07/825,119                   10/26/93
5,256,897                      07/729,867                   10/26/93
5,256,899                      07/813,176                   10/26/93
5,256,908                      07/961,798                   10/26/93
5,256,915                      07/817,092                   10/26/93
5,256,917                      07/863,623                   10/26/93
5,256,939                      07/853,876                   10/26/93
5,256,949                      07/817,283                   10/26/93
5,256,960                      07/682,696                   10/26/93
5,256,962                      07/951,915                   10/26/93
5,256,964                      07/923,408                   10/26/93
5,256,969                      07/620,612                   10/26/93
5,256,972                      08/003,877                   10/26/93
5,256,973                      07/723,213                   10/26/93
5,257,005                      07/931,615                   10/26/93
5,257,012                      07/747,142                   10/26/93
5,257,013                      08/006,696                   10/26/93
5,257,015                      07/454,453                   10/26/93
5,257,018                      07/473,405                   10/26/93
5,257,028                      07/910,589                   10/26/93
5,257,029                      07/900,352                   10/26/93
5,257,037                      07/747,324                   10/26/93
5,257,046                      07/937,573                   10/26/93
5,257,057                      07/902,350                   10/26/93
5,257,059                      07/857,155                   10/26/93
5,257,080                      07/914,558                   10/26/93
5,257,086                      07/895,585                   10/26/93
5,257,090                      07/800,336                   10/26/93
5,257,093                      07/791,038                   10/26/93
5,257,094                      07/738,213                   10/26/93
5,257,095                      07/511,853                   10/26/93
5,257,099                      07/741,249                   10/26/93
5,257,103                      07/830,409                   10/26/93
5,257,112                      07/929,170                   10/26/93
5,257,117                      07/778,465                   10/26/93
5,257,128                      07/389,614                   10/26/93
5,257,145                      07/928,313                   10/26/93
5,257,148                      07/924,615                   10/26/93
5,257,154                      07/897,588                   10/26/93
5,257,165                      07/834,841                   10/26/93
5,257,173                      07/801,943                   10/26/93
5,257,185                      07/526,398                   10/26/93
5,257,190                      07/745,061                   10/26/93
5,257,201                      07/394,247                   10/26/93
5,257,207                      07/659,417                   10/26/93
5,257,208                      07/941,862                   10/26/93
5,257,220                      07/850,644                   10/26/93
5,257,227                      07/640,275                   10/26/93
5,257,237                      07/791,666                   10/26/93
5,257,242                      07/735,142                   10/26/93
5,257,244                      07/866,581                   10/26/93
5,257,245                      08/022,206                   10/26/93
5,257,249                      07/857,239                   10/26/93
5,257,251                      07/764,264                   10/26/93
5,257,258                      07/656,934                   10/26/93
5,257,260                      07/809,662                   10/26/93
5,257,275                      07/921,787                   10/26/93
5,257,278                      07/883,427                   10/26/93
5,257,280                      07/756,791                   10/26/93
5,257,281                      07/473,000                   10/26/93
5,257,292                      07/851,457                   10/26/93
5,257,305                      07/981,238                   10/26/93
5,257,325                      07/806,944                   10/26/93
5,257,326                      07/688,265                   10/26/93
5,257,327                      07/708,018                   10/26/93
5,257,328                      07/861,600                   10/26/93
5,257,331                      07/914,711                   10/26/93
5,257,342                      07/680,117                   10/26/93
5,257,354                      07/641,987                   10/26/93
5,257,355                      07/885,238                   10/26/93
5,257,362                      07/666,289                   10/26/93
5,257,363                      07/507,119                   10/26/93
5,257,373                      07/679,226                   10/26/93
5,257,376                      07/577,299                   10/26/93
5,257,378                      07/733,904                   10/26/93
5,257,379                      07/754,813                   10/26/93
5,257,395                      07/890,281                   10/26/93
5,257,404                      07/771,577                   10/26/93
5,257,407                      07/585,749                   10/26/93
5,257,410                      07/673,443                   10/26/93
5,257,414                      07/618,125                   10/26/93

                   PATENTS WHICH EXPIRED ON October 28, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                         Serial                          Issue
Number                         Number                           Date

5,680,652                      08/717,932                   10/28/97
5,680,654                      08/681,559                   10/28/97
5,680,655                      08/489,617                   10/28/97
5,680,658                      08/769,486                   10/28/97
5,680,660                      08/757,434                   10/28/97
5,680,665                      08/639,039                   10/28/97
5,680,669                      08/608,425                   10/28/97
5,680,672                      08/725,334                   10/28/97
5,680,682                      08/614,663                   10/28/97
5,680,692                      08/317,077                   10/28/97
5,680,694                      08/620,174                   10/28/97
5,680,706                      08/608,499                   10/28/97
5,680,708                      08/585,908                   10/28/97
5,680,709                      08/398,524                   10/28/97
5,680,710                      08/600,800                   10/28/97
5,680,719                      08/491,271                   10/28/97
5,680,723                      08/754,535                   10/28/97
5,680,726                      08/420,473                   10/28/97
5,680,727                      08/448,497                   10/28/97
5,680,732                      08/663,102                   10/28/97
5,680,733                      08/256,435                   10/28/97
5,680,735                      08/400,350                   10/28/97
5,680,737                      08/601,342                   10/28/97
5,680,739                      08/284,155                   10/28/97
5,680,743                      08/613,135                   10/28/97
5,680,746                      08/761,779                   10/28/97
5,680,756                      08/523,996                   10/28/97
5,680,781                      08/558,904                   10/28/97
5,680,782                      08/566,790                   10/28/97
5,680,791                      08/520,119                   10/28/97
5,680,798                      08/556,138                   10/28/97
5,680,803                      08/584,018                   10/28/97
5,680,812                      08/376,841                   10/28/97
5,680,820                      08/509,386                   10/28/97
5,680,828                      08/699,167                   10/28/97
5,680,829                      08/605,407                   10/28/97
5,680,835                      08/596,178                   10/28/97
5,680,842                      08/708,658                   10/28/97
5,680,844                      08/571,555                   10/28/97
5,680,846                      08/647,840                   10/28/97
5,680,847                      08/744,991                   10/28/97
5,680,875                      08/548,217                   10/28/97
5,680,898                      08/596,964                   10/28/97
5,680,906                      08/684,730                   10/28/97
5,680,910                      08/368,028                   10/28/97
5,680,912                      08/678,041                   10/28/97
5,680,914                      08/513,220                   10/28/97
5,680,916                      08/531,451                   10/28/97
5,680,921                      08/598,196                   10/28/97
5,680,928                      08/351,830                   10/28/97
5,680,932                      08/572,784                   10/28/97
5,680,933                      08/636,224                   10/28/97
5,680,936                      08/404,299                   10/28/97
5,680,937                      08/696,740                   10/28/97
5,680,938                      08/551,893                   10/28/97
5,680,939                      08/687,050                   10/28/97
5,680,943                      08/524,633                   10/28/97
5,680,947                      08/676,819                   10/28/97
5,680,951                      08/511,784                   10/28/97
5,680,955                      08/710,952                   10/28/97
5,680,960                      08/441,617                   10/28/97
5,680,962                      08/688,694                   10/28/97
5,680,968                      08/799,802                   10/28/97
5,680,971                      08/522,810                   10/28/97
5,680,972                      08/586,334                   10/28/97
5,680,975                      08/554,528                   10/28/97
5,680,978                      08/532,076                   10/28/97
5,680,987                      08/379,203                   10/28/97
5,680,994                      08/053,522                   10/28/97
5,680,995                      08/672,458                   10/28/97
5,681,003                      08/221,436                   10/28/97
5,681,016                      08/533,615                   10/28/97
5,681,018                      08/404,281                   10/28/97
5,681,021                      08/495,798                   10/28/97
5,681,023                      08/568,504                   10/28/97
5,681,031                      08/488,766                   10/28/97
5,681,032                      08/591,383                   10/28/97
5,681,034                      08/785,380                   10/28/97
5,681,040                      08/717,819                   10/28/97
5,681,041                      08/721,016                   10/28/97
5,681,044                      08/579,558                   10/28/97
5,681,046                      08/593,078                   10/28/97
5,681,049                      08/517,605                   10/28/97
5,681,053                      08/454,559                   10/28/97
5,681,056                      08/557,434                   10/28/97
5,681,062                      08/692,384                   10/28/97
5,681,067                      08/589,484                   10/28/97
5,681,069                      08/583,742                   10/28/97
5,681,070                      08/585,346                   10/28/97
5,681,085                      08/666,598                   10/28/97
5,681,087                      08/755,313                   10/28/97
5,681,090                      08/614,832                   10/28/97
5,681,095                      08/582,478                   10/28/97
5,681,096                      08/476,720                   10/28/97
5,681,098                      08/521,140                   10/28/97
5,681,099                      08/545,747                   10/28/97
5,681,100                      08/762,610                   10/28/97
5,681,101                      08/720,786                   10/28/97
5,681,105                      08/332,146                   10/28/97
5,681,107                      08/730,683                   10/28/97
5,681,108                      08/495,956                   10/28/97
5,681,126                      08/607,394                   10/28/97
5,681,127                      08/373,597                   10/28/97
5,681,129                      08/655,218                   10/28/97
5,681,137                      08/743,368                   10/28/97
5,681,139                      08/745,320                   10/28/97
5,681,141                      08/631,103                   10/28/97
5,681,151                      08/617,319                   10/28/97
5,681,152                      08/537,659                   10/28/97
5,681,159                      08/625,926                   10/28/97
5,681,161                      08/652,907                   10/28/97
5,681,165                      08/437,666                   10/28/97
5,681,182                      08/678,300                   10/28/97
5,681,199                      08/723,728                   10/28/97
5,681,200                      08/665,411                   10/28/97
5,681,201                      08/406,590                   10/28/97
5,681,203                      08/578,420                   10/28/97
5,681,206                      08/773,228                   10/28/97
5,681,225                      08/730,467                   10/28/97
5,681,227                      08/709,747                   10/28/97
5,681,235                      08/634,813                   10/28/97
5,681,245                      08/778,103                   10/28/97
5,681,246                      08/752,845                   10/28/97
5,681,251                      08/461,634                   10/28/97
5,681,262                      08/480,413                   10/28/97
5,681,266                      08/623,114                   10/28/97
5,681,268                      08/607,001                   10/28/97
5,681,270                      08/534,833                   10/28/97
5,681,276                      08/424,162                   10/28/97
5,681,283                      08/494,765                   10/28/97
5,681,290                      08/556,020                   10/28/97
5,681,313                      08/592,215                   10/28/97
5,681,314                      08/666,123                   10/28/97
5,681,340                      08/637,618                   10/28/97
5,681,350                      08/584,623                   10/28/97
5,681,352                      08/610,551                   10/28/97
5,681,363                      08/617,212                   10/28/97
5,681,367                      08/666,949                   10/28/97
5,681,371                      08/629,163                   10/28/97
5,681,375                      08/680,996                   10/28/97
5,681,395                      08/642,902                   10/28/97
5,681,399                      08/540,738                   10/28/97
5,681,422                      08/621,999                   10/28/97
5,681,427                      08/488,245                   10/28/97
5,681,430                      08/518,487                   10/28/97
5,681,431                      08/342,616                   10/28/97
5,681,432                      08/547,754                   10/28/97
5,681,433                      08/307,355                   10/28/97
5,681,441                      07/994,687                   10/28/97
5,681,445                      08/575,989                   10/28/97
5,681,454                      08/177,286                   10/28/97
5,681,456                      08/551,115                   10/28/97
5,681,457                      08/540,460                   10/28/97
5,681,458                      08/546,668                   10/28/97
5,681,464                      08/582,988                   10/28/97
5,681,465                      08/600,918                   10/28/97
5,681,472                      08/526,565                   10/28/97
5,681,477                      08/547,749                   10/28/97
5,681,483                      08/429,945                   10/28/97
5,681,488                      08/534,643                   10/28/97
5,681,498                      08/536,143                   10/28/97
5,681,508                      08/618,478                   10/28/97
5,681,510                      08/322,661                   10/28/97
5,681,511                      08/712,284                   10/28/97
5,681,541                      08/464,456                   10/28/97
5,681,547                      07/742,672                   10/28/97
5,681,548                      08/413,022                   10/28/97
5,681,565                      08/590,880                   10/28/97
5,681,566                      08/456,612                   10/28/97
5,681,573                      08/495,579                   10/28/97
5,681,574                      08/302,587                   10/28/97
5,681,597                      08/597,188                   10/28/97
5,681,600                      08/573,740                   10/28/97
5,681,622                      08/564,343                   10/28/97
5,681,623                      08/379,876                   10/28/97
5,681,630                      08/539,425                   10/28/97
5,681,635                      08/184,844                   10/28/97
5,681,636                      08/568,663                   10/28/97
5,681,649                      08/507,837                   10/28/97
5,681,655                      08/537,879                   10/28/97
5,681,683                      08/561,748                   10/28/97
5,681,687                      08/597,554                   10/28/97
5,681,688                      08/365,064                   10/28/97
5,681,715                      08/400,422                   10/28/97
5,681,729                      07/969,336                   10/28/97
5,681,734                      08/337,360                   10/28/97
5,681,742                      08/534,051                   10/28/97
5,681,753                      08/568,757                   10/28/97
5,681,758                      08/743,046                   10/28/97
5,681,795                      08/538,678                   10/28/97
5,681,798                      08/708,062                   10/28/97
5,681,799                      08/434,084                   10/28/97
5,681,803                      08/347,440                   10/28/97
5,681,808                      08/362,092                   10/28/97
5,681,810                      08/472,908                   10/28/97
5,681,829                      08/411,709                   10/28/97
5,681,833                      08/302,936                   10/28/97
5,681,841                      08/120,008                   10/28/97
5,681,846                      08/406,209                   10/28/97
5,681,856                      08/603,984                   10/28/97
5,681,867                      08/674,808                   10/28/97
5,681,879                      08/499,664                   10/28/97
5,681,909                      08/589,371                   10/28/97
5,681,918                      08/604,047                   10/28/97
5,681,928                      08/358,184                   10/28/97
5,681,938                      08/513,843                   10/28/97
5,681,947                      08/330,423                   10/28/97
5,681,958                      08/484,424                   10/28/97
5,681,959                      08/604,133                   10/28/97
5,681,961                      08/407,180                   10/28/97
5,681,968                      08/515,846                   10/28/97
5,681,969                      08/642,544                   10/28/97
5,681,971                      08/354,684                   10/28/97
5,681,979                      08/609,374                   10/28/97
5,681,985                      08/680,654                   10/28/97
5,681,986                      08/643,932                   10/28/97
5,681,991                      08/660,514                   10/28/97
5,681,993                      08/229,174                   10/28/97
5,682,003                      08/534,324                   10/28/97
5,682,007                      08/476,350                   10/28/97
5,682,008                      08/446,974                   10/28/97
5,682,039                      08/440,604                   10/28/97
5,682,044                      08/591,420                   10/28/97
5,682,066                      08/689,585                   10/28/97
5,682,074                      08/205,045                   10/28/97
5,682,081                      08/273,249                   10/28/97
5,682,083                      08/580,615                   10/28/97
5,682,090                      08/529,461                   10/28/97
5,682,091                      08/619,795                   10/28/97
5,682,095                      08/256,023                   10/28/97
5,682,100                      08/524,033                   10/28/97
5,682,103                      08/646,147                   10/28/97
5,682,112                      08/443,703                   10/28/97
5,682,114                      08/545,320                   10/28/97
5,682,127                      08/681,982                   10/28/97
5,682,129                      07/806,859                   10/28/97
5,682,141                      08/561,313                   10/28/97
5,682,145                      08/497,943                   10/28/97
5,682,150                      08/725,629                   10/28/97
5,682,151                      08/555,420                   10/28/97
5,682,169                      08/271,224                   10/28/97
5,682,181                      08/247,720                   10/28/97
5,682,210                      08/569,870                   10/28/97
5,682,213                      08/269,725                   10/28/97
5,682,220                      08/508,091                   10/28/97
5,682,221                      08/697,301                   10/28/97
5,682,231                      08/499,116                   10/28/97
5,682,236                      08/087,501                   10/28/97
5,682,285                      08/643,861                   10/28/97
5,682,287                      08/585,652                   10/28/97
5,682,291                      08/676,700                   10/28/97
5,682,292                      08/535,245                   10/28/97
5,682,293                      08/688,072                   10/28/97
5,682,294                      08/688,080                   10/28/97
5,682,295                      08/688,125                   10/28/97
5,682,296                      08/688,129                   10/28/97
5,682,301                      08/645,728                   10/28/97
5,682,302                      08/418,488                   10/28/97
5,682,352                      08/598,485                   10/28/97
5,682,370                      08/580,445                   10/28/97
5,682,371                      08/567,475                   10/28/97
5,682,373                      08/392,683                   10/28/97
5,682,378                      08/557,634                   10/28/97
5,682,397                      08/565,075                   10/28/97
5,682,405                      08/536,875                   10/28/97
5,682,408                      08/605,708                   10/28/97
5,682,415                      08/543,170                   10/28/97
5,682,422                      08/519,821                   10/28/97
5,682,424                      08/632,917                   10/28/97
5,682,431                      08/353,981                   10/28/97
5,682,438                      08/492,995                   10/28/97
5,682,454                      08/560,691                   10/28/97
5,682,459                      08/507,855                   10/28/97
5,682,469                      08/272,691                   10/28/97
5,682,499                      08/466,359                   10/28/97
5,682,505                      08/428,447                   10/28/97
5,682,548                      08/105,645                   10/28/97
5,682,553                      08/422,344                   10/28/97
5,682,580                      08/507,951                   10/28/97
5,682,593                      08/545,454                   10/28/97
5,682,595                      08/332,056                   10/28/97
5,682,605                      08/340,338                   10/28/97