United States Patent and Trademark Office OG Notices: 05 March 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 January 2, 2002
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                             Serial                            Issue
Number                             Number                             Date

4,890,343                          07/209,003                     01/02/90
4,890,345                          07/272,452                     01/02/90
4,890,351                          07/222,840                     01/02/90
4,890,357                          07/255,811                     01/02/90
4,890,368                          07/250,534                     01/02/90
4,890,369                          07/263,933                     01/02/90
4,890,380                          07/270,465                     01/02/90
4,890,384                          07/297,817                     01/02/90
4,890,387                          07/321,791                     01/02/90
4,890,391                          07/306,983                     01/02/90
4,890,393                          07/200,559                     01/02/90
4,890,397                          06/749,831                     01/02/90
4,890,403                          07/231,727                     01/02/90
4,890,406                          07/353,079                     01/02/90
4,890,413                          07/305,691                     01/02/90
4,890,419                          07/161,158                     01/02/90
4,890,422                          07/200,611                     01/02/90
4,890,428                          07/240,169                     01/02/90
4,890,430                          07/096,012                     01/02/90
4,890,431                          07/241,430                     01/02/90
4,890,433                          07/210,478                     01/02/90
4,890,435                          07/289,743                     01/02/90
4,890,447                          07/354,704                     01/02/90
4,890,448                          07/179,289                     01/02/90
4,890,458                          07/215,212                     01/02/90
4,890,460                          07/272,740                     01/02/90
4,890,461                          07/217,223                     01/02/90
4,890,469                          07/297,399                     01/02/90
4,890,474                          07/233,556                     01/02/90
4,890,478                          07/095,745                     01/02/90
4,890,480                          07/237,808                     01/02/90
4,890,485                          07/147,702                     01/02/90
4,890,496                          07/241,504                     01/02/90
4,890,504                          07/288,673                     01/02/90
4,890,511                          07/111,226                     01/02/90
4,890,514                          07/170,088                     01/02/90
4,890,541                          07/208,874                     01/02/90
4,890,543                          07/093,242                     01/02/90
4,890,548                          07/168,164                     01/02/90
4,890,554                          07/168,850                     01/02/90
4,890,563                          07/240,127                     01/02/90
4,890,565                          06/755,956                     01/02/90
4,890,566                          07/173,878                     01/02/90
4,890,567                          07/127,181                     01/02/90
4,890,575                          07/073,249                     01/02/90
4,890,583                          07/287,889                     01/02/90
4,890,585                          07/276,998                     01/02/90
4,890,589                          07/244,840                     01/02/90
4,890,590                          07/271,597                     01/02/90
4,890,593                          07/169,637                     01/02/90
4,890,594                          07/275,521                     01/02/90
4,890,599                          07/193,292                     01/02/90
4,890,622                          07/263,372                     01/02/90
4,890,635                          07/192,640                     01/02/90
4,890,640                          07/347,441                     01/02/90
4,890,642                          07/285,139                     01/02/90
4,890,651                          07/205,263                     01/02/90
4,890,656                          07/112,820                     01/02/90
4,890,658                          07/252,721                     01/02/90
4,890,662                          07/219,317                     01/02/90
4,890,674                          07/285,517                     01/02/90
4,890,697                          07/278,357                     01/02/90
4,890,701                          07/272,347                     01/02/90
4,890,703                          07/194,513                     01/02/90
4,890,704                          07/243,624                     01/02/90
4,890,720                          07/292,006                     01/02/90
4,890,726                          07/239,267                     01/02/90
4,890,737                          07/274,695                     01/02/90
4,890,738                          07/364,265                     01/02/90
4,890,744                          07/264,025                     01/02/90
4,890,750                          07/281,721                     01/02/90
4,890,756                          07/232,383                     01/02/90
4,890,758                          07/239,689                     01/02/90
4,890,767                          07/191,860                     01/02/90
4,890,774                          07/186,492                     01/02/90
4,890,780                          07/093,715                     01/02/90
4,890,783                          07/277,666                     01/02/90
4,890,789                          07/274,007                     01/02/90
4,890,790                          07/252,693                     01/02/90
4,890,792                          07/181,143                     01/02/90
4,890,797                          07/166,054                     01/02/90
4,890,798                          07/326,817                     01/02/90
4,890,799                          07/202,826                     01/02/90
4,890,804                          07/146,676                     01/02/90
4,890,809                          07/218,267                     01/02/90
4,890,814                          07/248,593                     01/02/90
4,890,816                          07/206,744                     01/02/90
4,890,817                          07/153,180                     01/02/90
4,890,825                          07/144,539                     01/02/90
4,890,844                          07/181,501                     01/02/90
4,890,849                          06/608,190                     01/02/90
4,890,856                          07/157,512                     01/02/90
4,890,862                          07/240,535                     01/02/90
4,890,863                          07/174,076                     01/02/90
4,890,864                          07/145,298                     01/02/90
4,890,869                          07/248,336                     01/02/90
4,890,877                          07/217,803                     01/02/90
4,890,899                          07/193,614                     01/02/90
4,890,927                          07/346,041                     01/02/90
4,890,932                          07/111,796                     01/02/90
4,890,933                          07/157,196                     01/02/90
4,890,945                          07/013,661                     01/02/90
4,890,953                          07/076,917                     01/02/90
4,890,958                          07/297,332                     01/02/90
4,890,969                          07/191,232                     01/02/90
4,890,976                          07/349,909                     01/02/90
4,891,002                          07/204,554                     01/02/90
4,891,023                          07/234,770                     01/02/90
4,891,024                          07/184,070                     01/02/90
4,891,033                          07/183,924                     01/02/90
4,891,036                          07/358,562                     01/02/90
4,891,037                          07/267,933                     01/02/90
4,891,041                          07/192,938                     01/02/90
4,891,044                          07/141,604                     01/02/90
4,891,061                          06/854,237                     01/02/90
4,891,077                          07/263,371                     01/02/90
4,891,079                          07/252,827                     01/02/90
4,891,083                          07/224,742                     01/02/90
4,891,090                          07/253,118                     01/02/90
4,891,094                          07/356,488                     01/02/90
4,891,095                          07/325,917                     01/02/90
4,891,096                          07/327,403                     01/02/90
4,891,099                          07/290,606                     01/02/90
4,891,100                          07/318,548                     01/02/90
4,891,112                          06/797,095                     01/02/90
4,891,130                          06/883,004                     01/02/90
4,891,144                          07/230,733                     01/02/90
4,891,147                          07/276,599                     01/02/90
4,891,177                          07/054,188                     01/02/90
4,891,178                          07/201,267                     01/02/90
4,891,193                          07/237,681                     01/02/90
4,891,195                          07/176,564                     01/02/90
4,891,199                          06/943,861                     01/02/90
4,891,204                          06/898,869                     01/02/90
4,891,227                          07/151,339                     01/02/90
4,891,235                          07/080,533                     01/02/90
4,891,238                          07/128,698                     01/02/90
4,891,239                          07/339,908                     01/02/90
4,891,246                          07/235,273                     01/02/90
4,891,247                          07/214,909                     01/02/90
4,891,249                          07/198,689                     01/02/90
4,891,254                          07/208,088                     01/02/90
4,891,266                          07/108,465                     01/02/90
4,891,273                          07/193,375                     01/02/90
4,891,275                          06/879,581                     01/02/90
4,891,278                          07/016,402                     01/02/90
4,891,279                          07/183,303                     01/02/90
4,891,280                          06/855,548                     01/02/90
4,891,288                          07/163,215                     01/02/90
4,891,290                          07/192,470                     01/02/90
4,891,296                          07/044,947                     01/02/90
4,891,308                          07/344,974                     01/02/90
4,891,317                          06/719,505                     01/02/90
4,891,325                          07/219,449                     01/02/90
4,891,327                          07/227,841                     01/02/90
4,891,334                          07/268,402                     01/02/90
4,891,338                          07/002,823                     01/02/90
4,891,339                          07/113,215                     01/02/90
4,891,345                          06/907,935                     01/02/90
4,891,349                          07/268,908                     01/02/90
4,891,355                          07/234,976                     01/02/90
4,891,365                          07/069,061                     01/02/90
4,891,367                          07/041,170                     01/02/90
4,891,386                          06/651,651                     01/02/90
4,891,387                          07/304,215                     01/02/90
4,891,398                          07/231,471                     01/02/90
4,891,403                          07/213,444                     01/02/90
4,891,410                          07/184,068                     01/02/90
4,891,411                          07/216,501                     01/02/90
4,891,412                          07/258,368                     01/02/90
4,891,415                          07/299,131                     01/02/90
4,891,422                          06/749,343                     01/02/90
4,891,423                          07/325,872                     01/02/90
4,891,429                          07/062,028                     01/02/90
4,891,434                          07/120,249                     01/02/90
4,891,439                          07/217,643                     01/02/90
4,891,443                          07/221,848                     01/02/90
4,891,447                          07/285,782                     01/02/90
4,891,449                          07/213,540                     01/02/90
4,891,451                          07/213,589                     01/02/90
4,891,463                          07/229,052                     01/02/90
4,891,464                          06/930,631                     01/02/90
4,891,468                          07/262,622                     01/02/90
4,891,469                          07/244,443                     01/02/90
4,891,478                          07/191,959                     01/02/90
4,891,490                          07/188,483                     01/02/90
4,891,492                          07/193,273                     01/02/90
4,891,496                          07/215,630                     01/02/90
4,891,501                          07/180,458                     01/02/90
4,891,508                          07/213,405                     01/02/90
4,891,514                          07/117,059                     01/02/90
4,891,534                          07/229,337                     01/02/90
4,891,536                          07/290,221                     01/02/90
4,891,547                          07/205,535                     01/02/90
4,891,550                          07/346,317                     01/02/90
4,891,551                          07/200,382                     01/02/90
4,891,564                          07/301,006                     01/02/90
4,891,565                          07/211,306                     01/02/90
4,891,575                          07/376,152                     01/02/90
4,891,590                          07/204,132                     01/02/90
4,891,592                          07/207,918                     01/02/90
4,891,594                          07/234,458                     01/02/90
4,891,595                          07/053,484                     01/02/90
4,891,607                          07/203,230                     01/02/90
4,891,610                          07/311,699                     01/02/90
4,891,611                          07/321,490                     01/02/90
4,891,619                          07/261,112                     01/02/90
4,891,622                          07/214,120                     01/02/90
4,891,623                          07/305,183                     01/02/90
4,891,624                          07/174,773                     01/02/90
4,891,636                          07/338,500                     01/02/90
4,891,637                          07/141,655                     01/02/90
4,891,649                          07/239,918                     01/02/90
4,891,650                          07/194,479                     01/02/90
4,891,660                          07/277,297                     01/02/90
4,891,691                          07/143,653                     01/02/90
4,891,698                          07/346,083                     01/02/90
4,891,699                          07/314,088                     01/02/90
4,891,703                          07/247,604                     01/02/90
4,891,706                          07/324,288                     01/02/90
4,891,708                          07/312,947                     01/02/90
4,891,709                          07/332,343                     01/02/90
4,891,711                          07/263,809                     01/02/90
4,891,724                          07/237,765                     01/02/90
4,891,727                          07/231,836                     01/02/90
4,891,728                          07/127,370                     01/02/90
4,891,735                          07/322,324                     01/02/90
4,891,739                          07/357,631                     01/02/90
4,891,746                          07/280,075                     01/02/90
4,891,754                          07/069,430                     01/02/90
4,891,775                          07/200,000                     01/02/90
4,891,785                          07/216,770                     01/02/90
4,891,795                          07/334,970                     01/02/90
4,891,798                          07/022,545                     01/02/90
4,891,806                          07/098,547                     01/02/90
4,891,815                          07/108,191                     01/02/90
4,891,817                          07/205,763                     01/02/90
4,891,822                          07/283,248                     01/02/90
4,891,823                          07/262,714                     01/02/90
4,891,827                          07/164,584                     01/02/90
4,891,843                          06/469,489                     01/02/90
4,891,844                          07/173,268                     01/02/90

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

Patent                             Serial                            Issue
Number                             Number                             Date

5,272,775                          07/749,139                     12/28/93
5,272,780                          08/064,595                     12/28/93
5,272,786                          07/651,212                     12/28/93
5,272,789                          07/896,149                     12/28/93
5,272,791                          08/059,505                     12/28/93
5,272,794                          08/047,035                     12/28/93
5,272,795                          07/997,351                     12/28/93
5,272,796                          07/884,919                     12/28/93
5,272,797                          08/015,806                     12/28/93
5,272,798                          07/926,528                     12/28/93
5,272,807                          08/021,001                     12/28/93
5,272,811                          07/900,182                     12/28/93
5,272,812                          07/944,857                     12/28/93
5,272,815                          07/790,245                     12/28/93
5,272,816                          07/902,886                     12/28/93
5,272,818                          07/936,573                     12/28/93
5,272,819                          07/701,263                     12/28/93
5,272,825                          07/911,671                     12/28/93
5,272,836                          07/889,586                     12/28/93
5,272,840                          07/851,220                     12/28/93
5,272,841                          07/964,191                     12/28/93
5,272,842                          07/986,254                     12/28/93
5,272,846                          07/901,878                     12/28/93
5,272,849                          07/722,313                     12/28/93
5,272,852                          07/913,031                     12/28/93
5,272,854                          07/985,289                     12/28/93
5,272,858                          07/832,809                     12/28/93
5,272,865                          07/762,941                     12/28/93
5,272,866                          07/867,668                     12/28/93
5,272,881                          07/936,429                     12/28/93
5,272,883                          07/854,803                     12/28/93
5,272,890                          07/954,559                     12/28/93
5,272,894                          07/751,879                     12/28/93
5,272,899                          07/945,883                     12/28/93
5,272,911                          07/966,684                     12/28/93
5,272,917                          07/814,756                     12/28/93
5,272,918                          08/083,758                     12/28/93
5,272,926                          07/791,467                     12/28/93
5,272,932                          07/892,057                     12/28/93
5,272,942                          07/894,254                     12/28/93
5,272,946                          07/855,768                     12/28/93
5,272,953                          07/855,901                     12/28/93
5,272,955                          07/916,187                     12/28/93
5,272,957                          07/879,957                     12/28/93
5,272,961                          07/258,992                     12/28/93
5,272,969                          08/006,803                     12/28/93
5,272,983                          07/947,397                     12/28/93
5,272,987                          08/011,377                     12/28/93
5,272,992                          07/904,391                     12/28/93
5,273,000                          07/998,540                     12/28/93
5,273,005                          08/029,793                     12/28/93
5,273,008                          07/930,899                     12/28/93
5,273,009                          07/933,230                     12/28/93
5,273,023                          07/836,539                     12/28/93
5,273,037                          07/739,253                     12/28/93
5,273,038                          07/801,914                     12/28/93
5,273,045                          07/886,816                     12/28/93
5,273,058                          07/959,353                     12/28/93
5,273,060                          08/065,853                     12/28/93
5,273,062                          07/993,839                     12/28/93
5,273,071                          07/846,055                     12/28/93
5,273,073                          07/837,191                     12/28/93
5,273,074                          07/734,632                     12/28/93
5,273,077                          07/977,848                     12/28/93
5,273,078                          07/904,567                     12/28/93
5,273,080                          07/776,773                     12/28/93
5,273,085                          07/823,850                     12/28/93
5,273,088                          07/884,444                     12/28/93
5,273,090                          08/028,340                     12/28/93
5,273,097                          07/979,564                     12/28/93
5,273,099                          07/835,080                     12/28/93
5,273,100                          07/978,159                     12/28/93
5,273,109                          07/640,068                     12/28/93
5,273,120                          08/067,779                     12/28/93
5,273,132                          07/997,179                     12/28/93
5,273,136                          07/993,922                     12/28/93
5,273,141                          07/808,125                     12/28/93
5,273,142                          07/900,263                     12/28/93
5,273,143                          07/922,276                     12/28/93
5,273,148                          07/870,626                     12/28/93
5,273,149                          07/825,965                     12/28/93
5,273,153                          08/071,603                     12/28/93
5,273,154                          08/076,950                     12/28/93
5,273,155                          07/963,713                     12/28/93
5,273,167                          07/687,724                     12/28/93
5,273,172                          07/973,754                     12/28/93
5,273,174                          07/928,754                     12/28/93
5,273,186                          07/908,262                     12/28/93
5,273,187                          07/902,710                     12/28/93
5,273,191                          07/914,122                     12/28/93
5,273,195                          07/966,260                     12/28/93
5,273,200                          07/949,395                     12/28/93
5,273,201                          07/888,195                     12/28/93
5,273,205                          07/977,460                     12/28/93
5,273,206                          07/963,689                     12/28/93
5,273,209                          07/854,724                     12/28/93
5,273,222                          07/883,837                     12/28/93
5,273,223                          07/846,671                     12/28/93
5,273,232                          07/890,018                     12/28/93
5,273,237                          07/970,747                     12/28/93
5,273,241                          07/955,672                     12/28/93
5,273,242                          07/928,286                     12/28/93
5,273,243                          07/179,459                     12/28/93
5,273,244                          07/785,506                     12/28/93
5,273,245                          07/735,370                     12/28/93
5,273,251                          07/716,859                     12/28/93
5,273,257                          07/818,393                     12/28/93
5,273,259                          07/672,495                     12/28/93
5,273,263                          07/923,290                     12/28/93
5,273,264                          07/992,726                     12/28/93
5,273,268                          07/911,576                     12/28/93
5,273,276                          08/044,940                     12/28/93
5,273,280                          07/605,689                     12/28/93
5,273,295                          08/020,790                     12/28/93
5,273,298                          07/973,274                     12/28/93
5,273,303                          07/946,855                     12/28/93
5,273,311                          07/961,317                     12/28/93
5,273,315                          08/010,454                     12/28/93
5,273,316                          07/512,975                     12/28/93
5,273,322                          08/000,397                     12/28/93
5,273,333                          08/020,355                     12/28/93
5,273,334                          07/878,630                     12/28/93
5,273,336                          08/004,047                     12/28/93
5,273,342                          07/908,213                     12/28/93
5,273,344                          07/993,685                     12/28/93
5,273,347                          07/768,948                     12/28/93
5,273,348                          07/869,455                     12/28/93
5,273,350                          07/780,514                     12/28/93
5,273,352                          07/973,111                     12/28/93
5,273,357                          07/982,347                     12/28/93
5,273,366                          07/969,578                     12/28/93
5,273,367                          07/977,855                     12/28/93
5,273,370                          07/973,402                     12/28/93
5,273,373                          07/847,175                     12/28/93
5,273,378                          07/934,660                     12/28/93
5,273,387                          07/976,790                     12/28/93
5,273,391                          07/935,924                     12/28/93
5,273,392                          07/931,648                     12/28/93
5,273,401                          07/907,272                     12/28/93
5,273,402                          08/056,576                     12/28/93
5,273,407                          07/876,046                     12/28/93
5,273,410                          07/924,578                     12/28/93
5,273,417                          07/850,124                     12/28/93
5,273,419                          07/936,312                     12/28/93
5,273,421                          08/006,150                     12/28/93
5,273,431                          07/942,013                     12/28/93
5,273,432                          08/051,535                     12/28/93
5,273,436                          07/792,952                     12/28/93
5,273,438                          07/932,406                     12/28/93
5,273,440                          07/885,524                     12/28/93
5,273,441                          07/975,350                     12/28/93
5,273,442                          07/996,546                     12/28/93
5,273,450                          07/938,989                     12/28/93
5,273,451                          07/902,029                     12/28/93
5,273,458                          07/988,087                     12/28/93
5,273,481                          07/932,639                     12/28/93
5,273,485                          07/962,819                     12/28/93
5,273,486                          07/982,555                     12/28/93
5,273,489                          07/968,820                     12/28/93
5,273,498                          07/987,356                     12/28/93
5,273,502                          08/058,668                     12/28/93
5,273,509                          08/000,567                     12/28/93
5,273,513                          07/968,357                     12/28/93
5,273,514                          07/738,059                     12/28/93
5,273,531                          07/948,187                     12/28/93
5,273,534                          07/842,433                     12/28/93
5,273,536                          07/862,466                     12/28/93
5,273,548                          07/687,763                     12/28/93
5,273,551                          07/919,655                     12/28/93
5,273,556                          07/860,470                     12/28/93
5,273,562                          07/980,783                     12/28/93
5,273,566                          08/009,225                     12/28/93
5,273,579                          08/053,340                     12/28/93
5,273,580                          07/973,442                     12/28/93
5,273,581                          07/370,902                     12/28/93
5,273,593                          08/005,077                     12/28/93
5,273,603                          07/896,159                     12/28/93
5,273,605                          07/828,108                     12/28/93
5,273,607                          07/831,932                     12/28/93
5,273,610                          07/902,972                     12/28/93
5,273,611                          07/877,803                     12/28/93
5,273,616                          07/856,877                     12/28/93
5,273,624                          08/001,431                     12/28/93
5,273,633                          07/911,607                     12/28/93
5,273,634                          07/857,004                     12/28/93
5,273,635                          07/894,287                     12/28/93
5,273,640                          07/710,339                     12/28/93
5,273,643                          08/046,764                     12/28/93
5,273,644                          07/960,339                     12/28/93
5,273,653                          08/027,657                     12/28/93
5,273,661                          07/839,540                     12/28/93
5,273,666                          07/810,637                     12/28/93
5,273,668                          08/008,863                     12/28/93
5,273,676                          07/768,203                     12/28/93
5,273,695                          07/776,382                     12/28/93
5,273,696                          07/607,356                     12/28/93
5,273,699                          07/837,293                     12/28/93
5,273,705                          07/745,262                     12/28/93
5,273,708                          07/904,193                     12/28/93
5,273,711                          07/772,848                     12/28/93
5,273,713                          07/901,961                     12/28/93
5,273,720                          07/976,819                     12/28/93
5,273,722                          07/963,857                     12/28/93
5,273,727                          07/730,417                     12/28/93
5,273,730                          07/854,757                     12/28/93
5,273,737                          07/725,036                     12/28/93
5,273,738                          07/562,127                     12/28/93
5,273,739                          07/972,097                     12/28/93
5,273,742                          07/814,754                     12/28/93
5,273,751                          07/773,266                     12/28/93
5,273,758                          07/868,073                     12/28/93
5,273,759                          07/946,133                     12/28/93
5,273,769                          07/911,272                     12/28/93
5,273,777                          07/681,987                     12/28/93
5,273,784                          07/981,790                     12/28/93
5,273,792                          07/852,924                     12/28/93
5,273,793                          07/932,863                     12/28/93
5,273,794                          07/743,459                     12/28/93
5,273,796                          08/012,569                     12/28/93
5,273,803                          07/946,212                     12/28/93
5,273,812                          07/773,664                     12/28/93
5,273,816                          07/753,476                     12/28/93
5,273,820                          07/261,769                     12/28/93
5,273,828                          07/746,402                     12/28/93
5,273,830                          07/770,171                     12/28/93
5,273,831                          07/953,702                     12/28/93
5,273,833                          07/769,066                     12/28/93
5,273,839                          07/983,253                     12/28/93
5,273,844                          07/923,053                     12/28/93
5,273,865                          07/685,000                     12/28/93
5,273,870                          07/807,154                     12/28/93
5,273,871                          07/770,990                     12/28/93
5,273,875                          07/865,060                     12/28/93
5,273,878                          07/575,512                     12/28/93
5,273,893                          07/894,009                     12/28/93
5,273,897                          07/739,459                     12/28/93
5,273,901                          07/581,693                     12/28/93
5,273,909                          07/709,496                     12/28/93
5,273,916                          07/946,751                     12/28/93
5,273,929                          07/747,013                     12/28/93
5,273,932                          07/935,067                     12/28/93
5,273,942                          07/807,596                     12/28/93
5,273,947                          07/759,574                     12/28/93
5,273,951                          07/899,855                     12/28/93
5,273,952                          07/825,385                     12/28/93
5,273,954                          07/832,565                     12/28/93
5,273,960                          07/748,943                     12/28/93
5,273,964                          07/280,949                     12/28/93
5,273,969                          08/031,512                     12/28/93
5,273,971                          07/374,809                     12/28/93
5,273,973                          07/933,446                     12/28/93
5,273,982                          07/665,110                     12/28/93
5,273,983                          07/857,395                     12/28/93
5,273,990                          07/940,118                     12/28/93
5,273,992                          07/970,929                     12/28/93
5,273,994                          07/958,965                     12/28/93
5,273,996                          07/662,601                     12/28/93
5,274,000                          07/873,353                     12/28/93
5,274,006                          07/836,600                     12/28/93
5,274,007                          07/988,455                     12/28/93
5,274,019                          08/049,516                     12/28/93
5,274,021                          07/965,603                     12/28/93
5,274,025                          08/019,711                     12/28/93
5,274,037                          07/923,414                     12/28/93
5,274,038                          07/647,842                     12/28/93
5,274,048                          07/772,798                     12/28/93
5,274,050                          08/038,586                     12/28/93
5,274,059                          07/890,546                     12/28/93
5,274,062                          07/981,190                     12/28/93
5,274,064                          07/662,028                     12/28/93
5,274,067                          07/677,199                     12/28/93
5,274,071                          07/649,575                     12/28/93
5,274,078                          07/729,308                     12/28/93
5,274,080                          07/750,139                     12/28/93
5,274,090                          07/973,030                     12/28/93
5,274,092                          07/912,834                     12/28/93
5,274,103                          08/059,768                     12/28/93
5,274,104                          07/901,145                     12/28/93
5,274,105                          07/878,264                     12/28/93
5,274,112                          07/909,735                     12/28/93
5,274,117                          07/833,608                     12/28/93
5,274,119                          07/677,936                     12/28/93
5,274,135                          07/763,016                     12/28/93
5,274,140                          07/582,814                     12/28/93
5,274,147                          07/909,358                     12/28/93
5,274,152                          07/982,480                     12/28/93
5,274,157                          07/969,632                     12/28/93
5,274,170                          07/898,656                     12/28/93
5,274,176                          07/964,056                     12/28/93
5,274,180                          07/964,986                     12/28/93
5,274,182                          07/904,646                     12/28/93
5,274,186                          07/299,075                     12/28/93
5,274,187                          07/936,666                     12/28/93
5,274,191                          07/912,110                     12/28/93
5,274,193                          07/874,233                     12/28/93
5,274,194                          07/834,367                     12/28/93
5,274,198                          07/816,308                     12/28/93
5,274,201                          07/989,697                     12/28/93
5,274,202                          07/927,044                     12/28/93
5,274,207                          07/743,512                     12/28/93
5,274,211                          07/958,981                     12/28/93
5,274,212                          07/955,202                     12/28/93
5,274,213                          07/743,298                     12/28/93
5,274,221                          08/022,882                     12/28/93
5,274,230                          08/040,427                     12/28/93
5,274,234                          07/855,953                     12/28/93
5,274,235                          07/785,022                     12/28/93
5,274,241                          07/961,047                     12/28/93
5,274,243                          07/891,498                     12/28/93
5,274,244                          07/855,650                     12/28/93
5,274,245                          07/972,638                     12/28/93
5,274,249                          07/810,876                     12/28/93
5,274,251                          07/725,684                     12/28/93
5,274,267                          07/830,039                     12/28/93
5,274,272                          07/974,037                     12/28/93
5,274,285                          07/940,252                     12/28/93
5,274,286                          08/004,256                     12/28/93
5,274,287                          07/946,445                     12/28/93
5,274,297                          07/894,344                     12/28/93
5,274,310                          07/924,000                     12/28/93
5,274,311                          07/792,217                     12/28/93
5,274,317                          07/974,761                     12/28/93
5,274,327                          07/896,852                     12/28/93
5,274,329                          07/646,788                     12/28/93
5,274,342                          07/843,344                     12/28/93
5,274,345                          07/882,612                     12/28/93
5,274,356                          08/063,113                     12/28/93
5,274,361                          07/756,261                     12/28/93
5,274,373                          07/838,939                     12/28/93
5,274,393                          07/763,699                     12/28/93
5,274,394                          07/960,220                     12/28/93
5,274,403                          07/770,666                     12/28/93
5,274,408                          07/989,786                     12/28/93
5,274,411                          07/895,756                     12/28/93
5,274,419                          07/627,126                     12/28/93
5,274,425                          07/736,345                     12/28/93
5,274,430                          07/942,234                     12/28/93
5,274,431                          07/791,327                     12/28/93
5,274,437                          07/840,894                     12/28/93
5,274,454                          07/927,048                     12/28/93
5,274,469                          07/810,405                     12/28/93
5,274,482                          07/796,248                     12/28/93
5,274,490                          07/693,584                     12/28/93
5,274,492                          07/908,990                     12/28/93
5,274,493                          07/809,497                     12/28/93
5,274,494                          08/004,166                     12/28/93
5,274,496                          08/006,723                     12/28/93
5,274,498                          07/868,172                     12/28/93
5,274,500                          07/919,181                     12/28/93
5,274,501                          07/848,239                     12/28/93
5,274,502                          07/785,467                     12/28/93
5,274,505                          07/773,853                     12/28/93
5,274,507                          07/761,168                     12/28/93
5,274,523                          07/777,310                     12/28/93
5,274,530                          07/890,237                     12/28/93
5,274,536                          07/894,729                     12/28/93
5,274,539                          07/802,102                     12/28/93
5,274,542                          07/841,816                     12/28/93
5,274,546                          07/924,577                     12/28/93
5,274,547                          07/637,071                     12/28/93
5,274,549                          07/525,528                     12/28/93
5,274,557                          07/720,502                     12/28/93
5,274,561                          07/550,166                     12/28/93
5,274,566                          07/985,995                     12/28/93
5,274,569                          07/776,947                     12/28/93
5,274,579                          08/028,714                     12/28/93
5,274,609                          07/925,115                     12/28/93
5,274,612                          07/742,491                     12/28/93
5,274,613                          07/962,355                     12/28/93
5,274,615                          07/927,194                     12/28/93
5,274,616                          07/873,162                     12/28/93
5,274,620                          07/806,719                     12/28/93
5,274,621                          07/871,239                     12/28/93
5,274,627                          07/727,771                     12/28/93
5,274,636                          07/871,259                     12/28/93
5,274,642                          07/894,116                     12/28/93
5,274,646                          07/686,721                     12/28/93
5,274,651                          07/826,061                     12/28/93
5,274,654                          07/218,200                     12/28/93
5,274,667                          07/965,700                     12/28/93
5,274,679                          07/881,779                     12/28/93
5,274,683                          08/052,980                     12/28/93
5,274,691                          07/854,292                     12/28/93
5,274,692                          07/744,884                     12/28/93
5,274,701                          07/706,692                     12/28/93
5,274,703                          07/704,501                     12/28/93
5,274,712                          07/848,571                     12/28/93
5,274,720                          07/932,971                     12/28/93
5,274,722                          07/920,902                     12/28/93
5,274,725                          08/029,778                     12/28/93
5,274,742                          07/790,556                     12/28/93
5,274,745                          07/831,100                     12/28/93
5,274,760                          07/813,318                     12/28/93
5,274,769                          07/711,381                     12/28/93
5,274,786                          07/619,279                     12/28/93
5,274,790                          07/693,296                     12/28/93
5,274,794                          07/643,738                     12/28/93
5,274,795                          07/938,553                     12/28/93
5,274,804                          07/796,072                     12/28/93
5,274,807                          07/607,922                     12/28/93
5,274,812                          07/556,441                     12/28/93
5,274,815                          07/786,628                     12/28/93
5,274,818                          07/827,942                     12/28/93
5,274,819                          07/858,678                     12/28/93
5,274,822                          07/547,352                     12/28/93
5,274,827                          07/660,628                     12/28/93
5,274,830                          07/604,270                     12/28/93

                   PATENTS WHICH EXPIRED ON January 30, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                             Serial                            Issue
Number                             Number                             Date

5,701,605                          08/410,215                     12/30/97
5,701,607                          08/639,032                     12/30/97
5,701,610                          08/798,600                     12/30/97
5,701,612                          08/487,297                     12/30/97
5,701,615                          08/740,267                     12/30/97
5,701,616                          08/406,741                     12/30/97
5,701,624                          08/696,502                     12/30/97
5,701,630                          08/636,355                     12/30/97
5,701,633                          08/671,400                     12/30/97
5,701,635                          08/698,545                     12/30/97
5,701,666                          08/843,491                     12/30/97
5,701,678                          08/587,650                     12/30/97
5,701,680                          08/696,340                     12/30/97
5,701,688                          08/634,404                     12/30/97
5,701,692                          08/675,060                     12/30/97
5,701,694                          08/643,250                     12/30/97
5,701,696                          08/476,107                     12/30/97
5,701,705                          08/687,639                     12/30/97
5,701,709                          08/757,302                     12/30/97
5,701,712                          08/457,139                     12/30/97
5,701,716                          08/553,639                     12/30/97
5,701,718                          08/684,208                     12/30/97
5,701,726                          08/787,315                     12/30/97
5,701,740                          08/411,712                     12/30/97
5,701,748                          08/659,575                     12/30/97
5,701,756                          08/653,470                     12/30/97
5,701,768                          08/728,664                     12/30/97
5,701,771                          08/438,158                     12/30/97
5,701,772                          08/647,765                     12/30/97
5,701,780                          08/645,605                     12/30/97
5,701,781                          08/676,533                     12/30/97
5,701,783                          08/520,833                     12/30/97
5,701,785                          08/611,669                     12/30/97
5,701,787                          08/623,547                     12/30/97
5,701,796                          08/687,444                     12/30/97
5,701,797                          08/532,652                     12/30/97
5,701,802                          08/743,823                     12/30/97
5,701,804                          08/697,369                     12/30/97
5,701,805                          08/807,917                     12/30/97
5,701,806                          08/704,365                     12/30/97
5,701,807                          08/724,648                     12/30/97
5,701,809                          08/624,421                     12/30/97
5,701,811                          08/693,200                     12/30/97
5,701,823                          08/791,463                     12/30/97
5,701,824                          08/647,108                     12/30/97
5,701,826                          08/748,236                     12/30/97
5,701,827                          08/163,080                     12/30/97
5,701,829                          08/416,753                     12/30/97
5,701,833                          08/671,682                     12/30/97
5,701,834                          08/703,344                     12/30/97
5,701,836                          08/798,777                     12/30/97
5,701,841                          08/598,683                     12/30/97
5,701,844                          08/546,888                     12/30/97
5,701,855                          08/725,452                     12/30/97
5,701,859                          08/658,712                     12/30/97
5,701,862                          08/442,098                     12/30/97
5,701,875                          08/738,401                     12/30/97
5,701,878                          08/652,373                     12/30/97
5,701,880                          08/712,163                     12/30/97
5,701,884                          08/615,896                     12/30/97
5,701,885                          08/366,745                     12/30/97
5,701,889                          08/194,248                     12/30/97
5,701,893                          08/650,466                     12/30/97
5,701,905                          08/557,753                     12/30/97
5,701,911                          08/628,880                     12/30/97
5,701,913                          08/589,263                     12/30/97
5,701,914                          08/550,954                     12/30/97
5,701,916                          08/515,920                     12/30/97
5,701,918                          08/673,353                     12/30/97
5,701,921                          08/409,977                     12/30/97
5,701,927                          08/557,495                     12/30/97
5,701,931                          08/550,245                     12/30/97
5,701,933                          08/672,181                     12/30/97
5,701,937                          08/432,127                     12/30/97
5,701,942                          08/683,023                     12/30/97
5,701,944                          08/560,340                     12/30/97
5,701,946                          08/656,233                     12/30/97
5,701,958                          08/575,638                     12/30/97
5,701,966                          08/584,428                     12/30/97
5,701,971                          08/545,247                     12/30/97
5,701,973                          08/494,043                     12/30/97
5,701,977                          08/730,347                     12/30/97
5,701,980                          08/662,157                     12/30/97
5,701,981                          08/615,685                     12/30/97
5,701,985                          08/564,572                     12/30/97
5,701,991                          08/597,642                     12/30/97
5,701,997                          08/636,837                     12/30/97
5,701,998                          08/503,614                     12/30/97
5,702,006                          08/538,565                     12/30/97
5,702,008                          08/681,012                     12/30/97
5,702,009                          08/618,802                     12/30/97
5,702,010                          08/566,537                     12/30/97
5,702,014                          08/808,064                     12/30/97
5,702,017                          08/601,152                     12/30/97
5,702,022                          08/637,079                     12/30/97
5,702,023                          08/648,875                     12/30/97
5,702,027                          08/663,403                     12/30/97
5,702,029                          08/635,726                     12/30/97
5,702,034                          08/500,065                     12/30/97
5,702,037                          08/456,521                     12/30/97
5,702,038                          08/631,740                     12/30/97
5,702,042                          08/545,426                     12/30/97
5,702,048                          08/343,424                     12/30/97
5,702,052                          08/539,903                     12/30/97
5,702,058                          08/650,602                     12/30/97
5,702,065                          08/333,793                     12/30/97
5,702,069                          08/520,848                     12/30/97
5,702,071                          08/481,679                     12/30/97
5,702,074                          08/536,642                     12/30/97
5,702,083                          08/633,317                     12/30/97
5,702,085                          08/649,293                     12/30/97
5,702,087                          08/570,789                     12/30/97
5,702,093                          08/746,004                     12/30/97
5,702,096                          08/610,893                     12/30/97
5,702,104                          08/720,173                     12/30/97
5,702,109                          08/571,902                     12/30/97
5,702,113                          08/506,577                     12/30/97
5,702,114                          08/790,515                     12/30/97
5,702,115                          08/786,487                     12/30/97
5,702,117                          08/572,218                     12/30/97
5,702,120                          08/501,505                     12/30/97
5,702,121                          08/647,828                     12/30/97
5,702,135                          08/777,458                     12/30/97
5,702,138                          08/823,802                     12/30/97
5,702,143                          08/616,582                     12/30/97
5,702,151                          08/409,183                     12/30/97
5,702,163                          08/596,307                     12/30/97
5,702,168                          08/715,242                     12/30/97
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