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 May 30, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

4,833,739                       07/169,644                       05/30/89
4,833,741                       07/145,934                       05/30/89
4,833,742                       07/090,970                       05/30/89
4,833,750                       07/244,922                       05/30/89
4,833,753                       07/033,283                       05/30/89
4,833,758                       07/186,790                       05/30/89
4,833,759                       07/102,082                       05/30/89
4,833,765                       07/198,963                       05/30/89
4,833,771                       07/108,198                       05/30/89
4,833,774                       07/131,286                       05/30/89
4,833,780                       07/156,009                       05/30/89
4,833,787                       07/060,648                       05/30/89
4,833,797                       07/046,511                       05/30/89
4,833,799                       07/229,626                       05/30/89
4,833,809                       07/063,485                       05/30/89
4,833,812                       07/194,483                       05/30/89
4,833,829                       07/231,502                       05/30/89
4,833,830                       07/127,235                       05/30/89
4,833,838                       07/137,233                       05/30/89
4,833,846                       07/153,368                       05/30/89
4,833,851                       07/060,550                       05/30/89
4,833,858                       07/110,421                       05/30/89
4,833,860                       07/139,325                       05/30/89
4,833,865                       07/129,762                       05/30/89
4,833,866                       07/067,537                       05/30/89
4,833,879                       07/014,019                       05/30/89
4,833,884                       07/113,407                       05/30/89
4,833,891                       07/053,171                       05/30/89
4,833,892                       07/014,978                       05/30/89
4,833,893                       07/071,663                       05/30/89
4,833,905                       07/051,316                       05/30/89
4,833,906                       07/192,797                       05/30/89
4,833,909                       07/142,523                       05/30/89
4,833,911                       07/214,378                       05/30/89
4,833,912                       07/145,118                       05/30/89
4,833,922                       07/057,048                       05/30/89
4,833,929                       07/224,764                       05/30/89
4,833,930                       07/079,142                       05/30/89
4,833,945                       06/593,828                       05/30/89
4,833,950                       07/235,680                       05/30/89
4,833,951                       07/192,856                       05/30/89
4,833,969                       07/146,698                       05/30/89
4,833,971                       07/165,762                       05/30/89
4,833,972                       07/120,552                       05/30/89
4,833,973                       07/197,859                       05/30/89
4,833,986                       07/162,063                       05/30/89
4,833,995                       06/887,527                       05/30/89
4,833,996                       07/150,027                       05/30/89
4,834,003                       07/236,087                       05/30/89
4,834,008                       07/101,084                       05/30/89
4,834,012                       07/122,541                       05/30/89
4,834,018                       07/165,455                       05/30/89
4,834,035                       07/052,048                       05/30/89
4,834,058                       06/933,240                       05/30/89
4,834,064                       07/159,519                       05/30/89
4,834,073                       07/017,250                       05/30/89
4,834,074                       07/110,064                       05/30/89
4,834,080                       07/077,177                       05/30/89
4,834,083                       07/193,420                       05/30/89
4,834,084                       06/722,335                       05/30/89
4,834,086                       07/148,693                       05/30/89
4,834,090                       07/196,570                       05/30/89
4,834,101                       07/067,320                       05/30/89
4,834,102                       07/160,359                       05/30/89
4,834,115                       07/064,503                       05/30/89
4,834,118                       06/884,880                       05/30/89
4,834,137                       07/239,764                       05/30/89
4,834,140                       07/280,425                       05/30/89
4,834,144                       07/129,623                       05/30/89
4,834,149                       07/171,457                       05/30/89
4,834,155                       07/154,250                       05/30/89
4,834,168                       07/180,754                       05/30/89
4,834,174                       07/121,560                       05/30/89
4,834,177                       07/125,623                       05/30/89
4,834,178                       07/205,914                       05/30/89
4,834,179                       07/140,519                       05/30/89
4,834,180                       06/917,324                       05/30/89
4,834,189                       07/137,927                       05/30/89
4,834,194                       07/120,025                       05/30/89
4,834,200                       07/132,323                       05/30/89
4,834,205                       07/151,881                       05/30/89
4,834,223                       07/062,872                       05/30/89
4,834,232                       07/174,073                       05/30/89
4,834,236                       07/265,339                       05/30/89
4,834,237                       07/232,299                       05/30/89
4,834,243                       07/030,899                       05/30/89
4,834,252                       07/247,613                       05/30/89
4,834,254                       06/893,387                       05/30/89
4,834,258                       07/105,563                       05/30/89
4,834,269                       06/937,657                       05/30/89
4,834,280                       07/200,438                       05/30/89
4,834,290                       07/051,929                       05/30/89
4,834,291                       07/122,895                       05/30/89
4,834,301                       07/114,797                       05/30/89
4,834,302                       07/124,039                       05/30/89
4,834,305                       07/092,397                       05/30/89
4,834,307                       07/200,848                       05/30/89
4,834,308                       07/147,185                       05/30/89
4,834,310                       07/145,370                       05/30/89
4,834,316                       07/232,864                       05/30/89
4,834,318                       07/130,946                       05/30/89
4,834,319                       07/104,683                       05/30/89
4,834,320                       07/136,326                       05/30/89
4,834,322                       07/175,660                       05/30/89
4,834,329                       07/055,290                       05/30/89
4,834,336                       07/109,863                       05/30/89
4,834,338                       07/152,632                       05/30/89
4,834,339                       07/144,246                       05/30/89
4,834,343                       07/149,154                       05/30/89
4,834,349                       07/060,295                       05/30/89
4,834,358                       07/152,404                       05/30/89
4,834,359                       07/067,618                       05/30/89
4,834,360                       07/134,341                       05/30/89
4,834,370                       07/134,205                       05/30/89
4,834,373                       07/155,089                       05/30/89
4,834,378                       07/118,245                       05/30/89
4,834,379                       07/118,243                       05/30/89
4,834,380                       07/118,244                       05/30/89
4,834,381                       07/118,241                       05/30/89
4,834,394                       07/216,552                       05/30/89
4,834,400                       07/168,519                       05/30/89
4,834,404                       07/230,903                       05/30/89
4,834,414                       07/131,767                       05/30/89
4,834,433                       07/138,566                       05/30/89
4,834,443                       07/122,732                       05/30/89
4,834,455                       07/219,360                       05/30/89
4,834,488                       06/945,385                       05/30/89
4,834,500                       07/016,621                       05/30/89
4,834,505                       07/116,561                       05/30/89
4,834,520                       07/141,060                       05/30/89
4,834,522                       07/139,150                       05/30/89
4,834,526                       07/122,551                       05/30/89
4,834,528                       06/896,705                       05/30/89
4,834,529                       06/926,930                       05/30/89
4,834,532                       06/938,275                       05/30/89
4,834,544                       07/070,282                       05/30/89
4,834,545                       06/870,410                       05/30/89
4,834,551                       07/003,371                       05/30/89
4,834,560                       07/133,938                       05/30/89
4,834,567                       06/947,406                       05/30/89
4,834,587                       07/055,411                       05/30/89
4,834,588                       07/098,589                       05/30/89
4,834,589                       07/011,209                       05/30/89
4,834,591                       07/164,443                       05/30/89
4,834,605                       07/074,675                       05/30/89
4,834,607                       07/048,627                       05/30/89
4,834,608                       07/143,844                       05/30/89
4,834,617                       07/225,587                       05/30/89
4,834,636                       07/147,562                       05/30/89
4,834,646                       07/185,362                       05/30/89
4,834,654                       07/180,444                       05/30/89
4,834,658                       07/221,078                       05/30/89
4,834,662                       07/158,832                       05/30/89
4,834,663                       07/146,729                       05/30/89
4,834,664                       07/131,937                       05/30/89
4,834,668                       07/152,447                       05/30/89
4,834,669                       07/118,756                       05/30/89
4,834,670                       07/156,405                       05/30/89
4,834,673                       07/236,313                       05/30/89
4,834,674                       07/210,685                       05/30/89
4,834,676                       07/162,422                       05/30/89
4,834,688                       07/206,309                       05/30/89
4,834,689                       07/007,777                       05/30/89
4,834,691                       07/121,682                       05/30/89
4,834,699                       07/151,934                       05/30/89
4,834,711                       07/085,205                       05/30/89
4,834,720                       07/137,645                       05/30/89
4,834,721                       07/151,312                       05/30/89
4,834,733                       07/119,598                       05/30/89
4,834,734                       07/037,829                       05/30/89
4,834,736                       07/034,817                       05/30/89
4,834,738                       07/220,354                       05/30/89
4,834,739                       07/134,423                       05/30/89
4,834,742                       07/089,660                       05/30/89
4,834,746                       06/840,170                       05/30/89
4,834,748                       07/102,344                       05/30/89
4,834,752                       07/152,536                       05/30/89
4,834,755                       06/707,724                       05/30/89
4,834,758                       07/199,003                       05/30/89
4,834,764                       07/124,339                       05/30/89
4,834,771                       06/836,719                       05/30/89
4,834,775                       07/014,871                       05/30/89
4,834,785                       07/209,460                       05/30/89
4,834,790                       06/948,236                       05/30/89
4,834,791                       07/044,368                       05/30/89
4,834,799                       07/113,792                       05/30/89
4,834,801                       07/104,134                       05/30/89
4,834,809                       07/096,758                       05/30/89
4,834,815                       07/109,554                       05/30/89
4,834,818                       07/157,884                       05/30/89
4,834,819                       07/230,974                       05/30/89
4,834,830                       07/222,467                       05/30/89
4,834,834                       07/123,226                       05/30/89
4,834,835                       07/112,324                       05/30/89
4,834,848                       07/151,239                       05/30/89
4,834,854                       07/234,470                       05/30/89
4,834,855                       07/112,006                       05/30/89
4,834,858                       07/172,254                       05/30/89
4,834,868                       07/149,848                       05/30/89
4,834,877                       07/213,030                       05/30/89
4,834,893                       07/140,174                       05/30/89
4,834,916                       07/072,930                       05/30/89
4,834,922                       06/801,265                       05/30/89
4,834,925                       07/207,028                       05/30/89
4,834,933                       06/771,582                       05/30/89
4,834,936                       07/091,753                       05/30/89
4,834,943                       07/057,524                       05/30/89
4,834,948                       07/053,094                       05/30/89
4,834,955                       07/186,440                       05/30/89
4,834,956                       07/032,113                       05/30/89
4,834,959                       06/905,426                       05/30/89
4,834,968                       07/223,722                       05/30/89
4,834,969                       07/051,130                       05/30/89
4,834,975                       06/734,624                       05/30/89
4,835,001                       07/094,950                       05/30/89
4,835,002                       07/071,923                       05/30/89
4,835,007                       07/108,330                       05/30/89
4,835,010                       07/059,037                       05/30/89
4,835,013                       07/159,375                       05/30/89
4,835,016                       07/173,966                       05/30/89
4,835,024                       07/142,016                       05/30/89
4,835,030                       07/108,007                       05/30/89
4,835,033                       07/162,739                       05/30/89
4,835,036                       06/893,307                       05/30/89
4,835,038                       07/153,432                       05/30/89
4,835,041                       07/067,727                       05/30/89
4,835,043                       06/928,788                       05/30/89
4,835,071                       07/082,890                       05/30/89
4,835,073                       07/061,537                       05/30/89
4,835,080                       07/059,955                       05/30/89
4,835,087                       07/079,817                       05/30/89
4,835,088                       07/136,416                       05/30/89
4,835,098                       06/772,561                       05/30/89
4,835,099                       06/932,951                       05/30/89
4,835,101                       06/923,564                       05/30/89
4,835,103                       06/933,982                       05/30/89
4,835,108                       07/109,808                       05/30/89
4,835,119                       07/103,042                       05/30/89
4,835,130                       07/146,043                       05/30/89
4,835,131                       07/080,128                       05/30/89
4,835,138                       07/050,643                       05/30/89
4,835,155                       07/087,408                       05/30/89
4,835,165                       07/175,071                       05/30/89
4,835,168                       07/165,967                       05/30/89
4,835,176                       07/024,752                       05/30/89
4,835,183                       06/451,318                       05/30/89
4,835,195                       07/231,391                       05/30/89
4,835,199                       07/037,287                       05/30/89
4,835,213                       07/019,166                       05/30/89
4,835,216                       07/100,054                       05/30/89
4,835,225                       07/143,771                       05/30/89
4,835,230                       07/258,365                       05/30/89
4,835,238                       07/059,718                       05/30/89
4,835,256                       07/129,924                       05/30/89
4,835,262                       07/160,644                       05/30/89
4,835,267                       07/001,875                       05/30/89
4,835,273                       07/133,625                       05/30/89
4,835,282                       07/244,062                       05/30/89
4,835,298                       06/911,221                       05/30/89
4,835,301                       07/083,802                       05/30/89
4,835,324                       07/130,522                       05/30/89
4,835,328                       07/184,399                       05/30/89
4,835,332                       07/238,784                       05/30/89
4,835,337                       07/165,730                       05/30/89
4,835,345                       07/245,951                       05/30/89
4,835,347                       07/155,267                       05/30/89
4,835,350                       07/170,733                       05/30/89
4,835,370                       07/165,428                       05/30/89
4,835,373                       07/182,952                       05/30/89
4,835,375                       07/055,283                       05/30/89
4,835,400                       07/100,018                       05/30/89
4,835,413                       07/017,084                       05/30/89
4,835,417                       07/134,581                       05/30/89
4,835,424                       07/028,795                       05/30/89
4,835,431                       07/128,718                       05/30/89
4,835,437                       07/195,435                       05/30/89
4,835,453                       07/121,445                       05/30/89
4,835,459                       06/863,910                       05/30/89
4,835,462                       07/160,498                       05/30/89
4,835,468                       07/127,495                       05/30/89
4,835,469                       07/077,648                       05/30/89
4,835,473                       07/181,973                       05/30/89
4,835,476                       06/936,077                       05/30/89
4,835,480                       06/897,161                       05/30/89
4,835,483                       07/222,665                       05/30/89
4,835,485                       07/172,828                       05/30/89
4,835,493                       07/110,150                       05/30/89
4,835,495                       07/179,740                       05/30/89
4,835,496                       07/227,474                       05/30/89
4,835,499                       07/166,081                       05/30/89
4,835,505                       06/889,139                       05/30/89
4,835,508                       07/112,275                       05/30/89
4,835,515                       07/107,688                       05/30/89
4,835,519                       07/063,402                       05/30/89
4,835,521                       07/116,787                       05/30/89
4,835,522                       07/116,920                       05/30/89
4,835,525                       07/130,558                       05/30/89
4,835,529                       07/165,347                       05/30/89
4,835,538                       07/003,642                       05/30/89
4,835,542                       07/141,567                       05/30/89
4,835,549                       07/095,446                       05/30/89
4,835,564                       07/137,322                       05/30/89
4,835,570                       07/183,867                       05/30/89
4,835,571                       07/147,434                       05/30/89
4,835,574                       07/065,928                       05/30/89
4,835,577                       07/155,351                       05/30/89
4,835,578                       07/139,791                       05/30/89
4,835,581                       07/076,765                       05/30/89
4,835,583                       06/895,913                       05/30/89
4,835,587                       07/103,917                       05/30/89
4,835,593                       06/860,408                       05/30/89
4,835,595                       07/100,742                       05/30/89
4,835,601                       07/253,375                       05/30/89
4,835,611                       07/138,129                       05/30/89
4,835,612                       07/092,550                       05/30/89
4,835,613                       07/179,154                       05/30/89
4,835,622                       07/071,006                       05/30/89
4,835,637                       07/094,197                       05/30/89
4,835,647                       07/069,328                       05/30/89
4,835,648                       06/843,665                       05/30/89
4,835,650                       07/109,625                       05/30/89
4,835,656                       07/182,774                       05/30/89
4,835,658                       07/138,443                       05/30/89
4,835,666                       07/112,309                       05/30/89
4,835,676                       07/166,016                       05/30/89
4,835,686                       06/867,449                       05/30/89
4,835,702                       07/048,432                       05/30/89
4,835,717                       07/134,694                       05/30/89
4,835,730                       07/019,860                       05/30/89
4,835,739                       07/081,829                       05/30/89
4,835,745                       07/199,518                       05/30/89
4,835,753                       07/019,628                       05/30/89
4,835,762                       06/847,110                       05/30/89
4,835,765                       07/002,080                       05/30/89
4,835,767                       07/116,180                       05/30/89
4,835,770                       07/101,952                       05/30/89
4,835,773                       06/920,608                       05/30/89
4,835,774                       07/051,399                       05/30/89
4,835,780                       07/243,119                       05/30/89
4,835,783                       07/041,483                       05/30/89
4,835,785                       07/103,980                       05/30/89
4,835,788                       07/213,948                       05/30/89
4,835,791                       07/017,125                       05/30/89
4,835,792                       07/147,540                       05/30/89

                     PATENTS WHICH EXPIRED ON May 25, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,212,837                       07/759,993                       05/25/93
5,212,838                       07/809,702                       05/25/93
5,212,842                       07/946,966                       05/25/93
5,212,850                       07/791,030                       05/25/93
5,212,861                       07/690,465                       05/25/93
5,212,862                       07/889,932                       05/25/93
5,212,866                       07/823,634                       05/25/93
5,212,869                       07/887,896                       05/25/93
5,212,871                       07/890,657                       05/25/93
5,212,873                       07/643,373                       05/25/93
5,212,874                       07/668,193                       05/25/93
5,212,876                       07/893,392                       05/25/93
5,212,880                       07/717,015                       05/25/93
5,212,882                       07/842,825                       05/25/93
5,212,885                       07/822,788                       05/25/93
5,212,888                       07/760,564                       05/25/93
5,212,890                       07/781,493                       05/25/93
5,212,892                       07/962,377                       05/25/93
5,212,893                       07/706,502                       05/25/93
5,212,895                       07/720,808                       05/25/93
5,212,900                       07/416,716                       05/25/93
5,212,901                       07/943,225                       05/25/93
5,212,906                       07/548,885                       05/25/93
5,212,908                       07/728,697                       05/25/93
5,212,916                       07/360,991                       05/25/93
5,212,917                       07/812,467                       05/25/93
5,212,924                       07/719,925                       05/25/93
5,212,925                       07/795,773                       05/25/93
5,212,926                       07/835,846                       05/25/93
5,212,927                       07/647,804                       05/25/93
5,212,934                       07/839,384                       05/25/93
5,212,946                       07/702,511                       05/25/93
5,212,955                       07/926,197                       05/25/93
5,212,957                       07/864,781                       05/25/93
5,212,964                       07/958,436                       05/25/93
5,212,967                       07/915,933                       05/25/93
5,212,980                       07/787,144                       05/25/93
5,212,986                       07/725,473                       05/25/93
5,212,987                       07/794,610                       05/25/93
5,212,996                       07/650,640                       05/25/93
5,213,001                       07/818,408                       05/25/93
5,213,003                       07/858,793                       05/25/93
5,213,007                       07/762,874                       05/25/93
5,213,014                       07/901,034                       05/25/93
5,213,017                       07/777,904                       05/25/93
5,213,020                       07/805,616                       05/25/93
5,213,022                       07/907,166                       05/25/93
5,213,026                       07/751,168                       05/25/93
5,213,029                       07/855,855                       05/25/93
5,213,033                       07/698,311                       05/25/93
5,213,043                       07/853,976                       05/25/93
5,213,046                       07/822,614                       05/25/93
5,213,047                       07/795,998                       05/25/93
5,213,055                       07/764,414                       05/25/93
5,213,057                       07/801,004                       05/25/93
5,213,058                       07/632,384                       05/25/93
5,213,069                       07/845,536                       05/25/93
5,213,073                       07/788,277                       05/25/93
5,213,084                       07/699,016                       05/25/93
5,213,089                       07/742,324                       05/25/93
5,213,092                       07/785,996                       05/25/93
5,213,099                       07/767,969                       05/25/93
5,213,101                       07/517,400                       05/25/93
5,213,107                       07/675,352                       05/25/93
5,213,108                       07/782,079                       05/25/93
5,213,114                       07/603,523                       05/25/93
5,213,116                       07/850,184                       05/25/93
5,213,119                       06/841,895                       05/25/93
5,213,121                       07/760,763                       05/25/93
5,213,122                       07/612,536                       05/25/93
5,213,127                       07/665,803                       05/25/93
5,213,139                       07/827,670                       05/25/93
5,213,140                       07/796,329                       05/25/93
5,213,146                       07/874,413                       05/25/93
5,213,149                       07/776,607                       05/25/93
5,213,150                       07/681,312                       05/25/93
5,213,151                       07/932,576                       05/25/93
5,213,161                       07/838,632                       05/25/93
5,213,166                       07/831,733                       05/25/93
5,213,176                       07/624,052                       05/25/93
5,213,186                       07/802,006                       05/25/93
5,213,197                       07/791,669                       05/25/93
5,213,202                       07/771,545                       05/25/93
5,213,211                       07/778,934                       05/25/93
5,213,212                       07/353,578                       05/25/93
5,213,214                       07/943,440                       05/25/93
5,213,217                       07/782,431                       05/25/93
5,213,220                       07/892,586                       05/25/93
5,213,221                       07/403,191                       05/25/93
5,213,226                       07/753,397                       05/25/93
5,213,227                       07/687,874                       05/25/93
5,213,230                       07/910,965                       05/25/93
5,213,243                       07/745,356                       05/25/93
5,213,245                       07/962,697                       05/25/93
5,213,249                       07/890,988                       05/25/93
5,213,256                       07/027,345                       05/25/93
5,213,260                       07/725,547                       05/25/93
5,213,261                       07/863,887                       05/25/93
5,213,271                       07/743,111                       05/25/93
5,213,278                       07/863,511                       05/25/93
5,213,285                       07/867,154                       05/25/93
5,213,286                       07/803,774                       05/25/93
5,213,290                       07/851,673                       05/25/93
5,213,291                       07/751,816                       05/25/93
5,213,292                       07/872,086                       05/25/93
5,213,294                       07/853,208                       05/25/93
5,213,296                       07/829,270                       05/25/93
5,213,297                       07/704,604                       05/25/93
5,213,298                       07/634,015                       05/25/93
5,213,307                       07/797,035                       05/25/93
5,213,311                       07/950,028                       05/25/93
5,213,319                       07/840,130                       05/25/93
5,213,321                       07/744,405                       05/25/93
5,213,326                       07/875,333                       05/25/93
5,213,331                       07/876,858                       05/25/93
5,213,350                       07/786,741                       05/25/93
5,213,352                       07/821,637                       05/25/93
5,213,353                       07/808,213                       05/25/93
5,213,354                       07/785,985                       05/25/93
5,213,356                       07/809,019                       05/25/93
5,213,357                       07/883,989                       05/25/93
5,213,364                       07/875,420                       05/25/93
5,213,371                       07/804,689                       05/25/93
5,213,379                       07/616,105                       05/25/93
5,213,381                       07/981,195                       05/25/93
5,213,383                       07/827,445                       05/25/93
5,213,389                       07/803,840                       05/25/93
5,213,390                       07/733,988                       05/25/93
5,213,393                       07/764,338                       05/25/93
5,213,394                       07/420,421                       05/25/93
5,213,396                       07/623,019                       05/25/93
5,213,413                       07/824,309                       05/25/93
5,213,421                       07/825,026                       05/25/93
5,213,424                       07/887,813                       05/25/93
5,213,434                       07/789,367                       05/25/93
5,213,437                       07/678,366                       05/25/93
5,213,444                       07/870,067                       05/25/93
5,213,445                       07/766,044                       05/25/93
5,213,450                       07/806,254                       05/25/93
5,213,458                       07/824,720                       05/25/93
5,213,462                       07/849,228                       05/25/93
5,213,464                       07/769,923                       05/25/93
5,213,468                       07/840,006                       05/25/93
5,213,469                       07/819,027                       05/25/93
5,213,474                       07/866,095                       05/25/93
5,213,477                       07/684,171                       05/25/93
5,213,481                       07/832,817                       05/25/93
5,213,483                       07/717,620                       05/25/93
5,213,494                       07/812,153                       05/25/93
5,213,503                       07/788,068                       05/25/93
5,213,505                       07/720,185                       05/25/93
5,213,507                       07/959,485                       05/25/93
5,213,509                       07/620,689                       05/25/93
5,213,518                       07/843,787                       05/25/93
5,213,519                       07/859,807                       05/25/93
5,213,520                       07/855,616                       05/25/93
5,213,522                       07/912,789                       05/25/93
5,213,529                       07/759,318                       05/25/93
5,213,545                       07/678,157                       05/25/93
5,213,552                       07/722,162                       05/25/93
5,213,555                       07/485,700                       05/25/93
5,213,563                       07/829,765                       05/25/93
5,213,565                       07/621,261                       05/25/93
5,213,582                       07/849,793                       05/25/93
5,213,589                       07/832,474                       05/25/93
5,213,592                       07/867,848                       05/25/93
5,213,602                       07/769,924                       05/25/93
5,213,605                       07/761,187                       05/25/93
5,213,610                       07/818,465                       05/25/93
5,213,611                       07/573,351                       05/25/93
5,213,616                       07/593,815                       05/25/93
5,213,617                       07/714,811                       05/25/93
5,213,618                       07/801,740                       05/25/93
5,213,625                       07/904,169                       05/25/93
5,213,629                       07/877,191                       05/25/93
5,213,630                       07/831,975                       05/25/93
5,213,633                       07/794,885                       05/25/93
5,213,636                       07/715,990                       05/25/93
5,213,638                       07/828,329                       05/25/93
5,213,648                       07/670,019                       05/25/93
5,213,656                       07/802,260                       05/25/93
5,213,657                       07/921,348                       05/25/93
5,213,658                       07/644,625                       05/25/93
5,213,661                       07/703,549                       05/25/93
5,213,668                       07/829,845                       05/25/93
5,213,690                       07/767,879                       05/25/93
5,213,695                       07/839,534                       05/25/93
5,213,698                       07/893,961                       05/25/93
5,213,700                       07/839,155                       05/25/93
5,213,706                       07/790,280                       05/25/93
5,213,711                       07/725,803                       05/25/93
5,213,714                       07/308,894                       05/25/93
5,213,717                       07/837,338                       05/25/93
5,213,740                       07/358,973                       05/25/93
5,213,742                       07/580,947                       05/25/93
5,213,743                       07/641,633                       05/25/93
5,213,757                       07/863,566                       05/25/93
5,213,758                       07/691,818                       05/25/93
5,213,760                       07/838,122                       05/25/93
5,213,762                       07/862,428                       05/25/93
5,213,763                       07/594,978                       05/25/93
5,213,774                       07/757,475                       05/25/93
5,213,777                       07/845,822                       05/25/93
5,213,786                       07/811,338                       05/25/93
5,213,789                       07/815,569                       05/25/93
5,213,793                       07/452,199                       05/25/93
5,213,794                       07/791,944                       05/25/93
5,213,796                       07/695,647                       05/25/93
5,213,799                       07/802,549                       05/25/93
5,213,803                       07/840,321                       05/25/93
5,213,811                       07/759,347                       05/25/93
5,213,814                       07/525,392                       05/25/93
5,213,815                       07/774,785                       05/25/93
5,213,835                       07/812,506                       05/25/93
5,213,836                       07/762,557                       05/25/93
5,213,844                       07/828,634                       05/25/93
5,213,848                       07/727,511                       05/25/93
5,213,849                       07/794,545                       05/25/93
5,213,851                       07/866,665                       05/25/93
5,213,855                       07/785,513                       05/25/93
5,213,856                       07/810,903                       05/25/93
5,213,858                       07/762,054                       05/25/93
5,213,861                       07/754,747                       05/25/93
5,213,865                       07/758,259                       05/25/93
5,213,874                       07/839,048                       05/25/93
5,213,878                       07/828,248                       05/25/93
5,213,880                       07/530,539                       05/25/93
5,213,883                       07/699,906                       05/25/93
5,213,885                       07/656,139                       05/25/93
5,213,892                       07/552,701                       05/25/93
5,213,901                       07/910,615                       05/25/93
5,213,903                       07/869,904                       05/25/93
5,213,906                       07/505,558                       05/25/93
5,213,910                       07/852,521                       05/25/93
5,213,911                       07/777,954                       05/25/93
5,213,915                       07/857,439                       05/25/93
5,213,918                       07/849,247                       05/25/93
5,213,919                       07/609,196                       05/25/93
5,213,921                       07/827,851                       05/25/93
5,213,923                       07/605,272                       05/25/93
5,213,925                       07/793,723                       05/25/93
5,213,938                       07/868,810                       05/25/93
5,213,941                       07/261,374                       05/25/93
5,213,944                       07/825,349                       05/25/93
5,213,946                       07/716,977                       05/25/93
5,213,948                       07/726,474                       05/25/93
5,213,971                       07/751,046                       05/25/93
5,213,976                       07/761,244                       05/25/93
5,213,981                       07/725,096                       05/25/93
5,213,989                       07/903,300                       05/25/93
5,213,991                       07/856,801                       05/25/93
5,213,995                       07/869,980                       05/25/93
5,213,996                       07/828,823                       05/25/93
5,214,001                       07/640,499                       05/25/93
5,214,005                       07/820,550                       05/25/93
5,214,006                       07/821,507                       05/25/93
5,214,007                       07/871,590                       05/25/93
5,214,009                       07/525,781                       05/25/93
5,214,015                       07/862,887                       05/25/93
5,214,025                       07/844,876                       05/25/93
5,214,041                       07/655,363                       05/25/93
5,214,050                       07/846,656                       05/25/93
5,214,062                       07/865,288                       05/25/93
5,214,063                       07/920,787                       05/25/93
5,214,071                       07/855,308                       05/25/93
5,214,077                       07/867,654                       05/25/93
5,214,078                       07/891,875                       05/25/93
5,214,079                       07/943,065                       05/25/93
5,214,081                       07/932,147                       05/25/93
5,214,084                       07/933,936                       05/25/93
5,214,092                       07/826,782                       05/25/93
5,214,105                       07/774,838                       05/25/93
5,214,107                       07/923,591                       05/25/93
5,214,110                       07/550,823                       05/25/93
5,214,111                       07/892,280                       05/25/93
5,214,114                       07/827,012                       05/25/93
5,214,116                       07/804,546                       05/25/93
5,214,121                       07/702,800                       05/25/93
5,214,122                       07/912,361                       05/25/93
5,214,123                       07/841,926                       05/25/93
5,214,131                       07/798,138                       05/25/93
5,214,134                       07/581,502                       05/25/93
5,214,138                       07/453,959                       05/25/93
5,214,145                       07/647,618                       05/25/93
5,214,146                       07/775,439                       05/25/93
5,214,153                       07/872,865                       05/25/93
5,214,156                       07/866,391                       05/25/93
5,214,161                       07/898,833                       05/25/93
5,214,167                       07/836,567                       05/25/93
5,214,170                       07/827,151                       05/25/93
5,214,175                       07/766,082                       05/25/93
5,214,177                       07/769,483                       05/25/93
5,214,189                       07/901,623                       05/25/93
5,214,191                       07/528,967                       05/25/93
5,214,196                       07/763,188                       05/25/93
5,214,204                       07/732,520                       05/25/93
5,214,207                       07/753,392                       05/25/93
5,214,217                       07/917,218                       05/25/93
5,214,218                       07/878,121                       05/25/93
5,214,221                       07/955,220                       05/25/93
5,214,235                       07/856,260                       05/25/93
5,214,237                       07/847,862                       05/25/93
5,214,240                       07/747,796                       05/25/93
5,214,241                       07/762,992                       05/25/93
5,214,252                       07/665,034                       05/25/93
5,214,253                       07/605,104                       05/25/93
5,214,257                       07/553,841                       05/25/93
5,214,260                       07/679,724                       05/25/93
5,214,264                       07/725,361                       05/25/93
5,214,266                       07/767,221                       05/25/93
5,214,293                       07/869,159                       05/25/93
5,214,297                       07/921,365                       05/25/93
5,214,301                       07/906,172                       05/25/93
5,214,313                       07/817,725                       05/25/93
5,214,323                       07/637,282                       05/25/93
5,214,333                       07/626,034                       05/25/93
5,214,337                       07/731,251                       05/25/93
5,214,338                       07/438,667                       05/25/93
5,214,339                       07/725,005                       05/25/93
5,214,342                       07/779,653                       05/25/93
5,214,343                       07/667,466                       05/25/93
5,214,349                       07/781,910                       05/25/93
5,214,352                       07/712,353                       05/25/93
5,214,353                       07/832,948                       05/25/93
5,214,365                       07/679,019                       05/25/93
5,214,366                       07/900,552                       05/25/93
5,214,367                       07/706,363                       05/25/93
5,214,368                       07/815,248                       05/25/93
5,214,374                       07/806,169                       05/25/93
5,214,383                       07/778,305                       05/25/93
5,214,386                       07/589,668                       05/25/93
5,214,388                       07/889,577                       05/25/93
5,214,402                       07/814,975                       05/25/93
5,214,406                       07/843,373                       05/25/93
5,214,410                       07/549,749                       05/25/93
5,214,414                       07/685,322                       05/25/93
5,214,421                       07/768,117                       05/25/93
5,214,424                       07/760,492                       05/25/93
5,214,428                       07/761,445                       05/25/93
5,214,429                       07/884,994                       05/25/93
5,214,438                       07/745,993                       05/25/93
5,214,440                       07/846,956                       05/25/93
5,214,446                       07/646,313                       05/25/93
5,214,451                       07/812,144                       05/25/93
5,214,455                       07/677,902                       05/25/93
5,214,457                       07/707,508                       05/25/93
5,214,458                       07/914,338                       05/25/93
5,214,484                       07/719,803                       05/25/93
5,214,487                       07/521,951                       05/25/93
5,214,488                       07/828,722                       05/25/93
5,214,491                       07/701,220                       05/25/93
5,214,501                       07/614,885                       05/25/93
5,214,505                       07/681,838                       05/25/93
5,214,518                       07/596,037                       05/25/93
5,214,519                       07/692,654                       05/25/93
5,214,524                       07/896,793                       05/25/93
5,214,532                       07/875,490                       05/25/93
5,214,533                       07/795,555                       05/25/93
5,214,534                       07/717,588                       05/25/93
5,214,535                       07/809,622                       05/25/93
5,214,536                       07/666,974                       05/25/93
5,214,539                       07/920,247                       05/25/93
5,214,541                       07/874,064                       05/25/93
5,214,542                       07/846,287                       05/25/93
5,214,543                       07/837,387                       05/25/93
5,214,544                       07/606,749                       05/25/93
5,214,548                       07/764,089                       05/25/93
5,214,554                       07/771,377                       05/25/93
5,214,556                       07/830,987                       05/25/93
5,214,562                       07/715,163                       05/25/93
5,214,563                       07/815,256                       05/25/93
5,214,573                       07/840,553                       05/25/93
5,214,579                       07/456,638                       05/25/93
5,214,589                       07/675,096                       05/25/93
5,214,596                       07/840,611                       05/25/93
5,214,598                       07/713,721                       05/25/93
5,214,607                       07/617,730                       05/25/93
5,214,608                       07/691,711                       05/25/93
5,214,614                       07/690,904                       05/25/93
5,214,622                       07/691,853                       05/25/93
5,214,624                       07/784,970                       05/25/93
5,214,628                       07/668,164                       05/25/93
5,214,638                       07/610,524                       05/25/93
5,214,658                       07/964,724                       05/25/93
5,214,661                       07/803,595                       05/25/93
5,214,663                       07/818,354                       05/25/93
5,214,669                       07/687,894                       05/25/93
5,214,674                       07/645,768                       05/25/93
5,214,681                       07/788,227                       05/25/93
5,214,698                       07/672,265                       05/25/93
5,214,709                       07/723,929                       05/25/93
5,214,736                       07/730,481                       05/25/93
5,214,738                       07/667,382                       05/25/93
5,214,747                       07/632,862                       05/25/93
5,214,749                       07/714,422                       05/25/93
5,214,756                       07/950,989                       05/25/93
5,214,766                       07/933,003                       05/25/93
5,214,771                       07/401,895                       05/25/93
5,214,775                       07/530,398                       05/25/93
5,214,776                       07/423,820                       05/25/93
5,214,783                       07/564,900                       05/25/93
5,214,785                       07/413,115                       05/25/93
5,214,794                       07/857,276                       05/25/93
5,214,796                       07/677,688                       05/25/93

                     PATENTS WHICH EXPIRED ON May 27, 2001
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                          Serial                           Issue
Number                          Number                           Date

5,632,043                       08/421,348                       05/27/97
5,632,055                       08/379,540                       05/27/97
5,632,056                       08/617,087                       05/27/97
5,632,062                       08/096,366                       05/27/97
5,632,065                       08/603,756                       05/27/97
5,632,069                       08/347,339                       05/27/97
5,632,082                       08/310,670                       05/27/97
5,632,095                       08/447,436                       05/27/97
5,632,097                       08/671,159                       05/27/97
5,632,098                       08/628,005                       05/27/97
5,632,104                       08/407,736                       05/27/97
5,632,106                       08/512,289                       05/27/97
5,632,107                       08/538,859                       05/27/97
5,632,109                       08/554,973                       05/27/97
5,632,120                       08/570,553                       05/27/97
5,632,133                       08/222,105                       05/27/97
5,632,135                       08/494,447                       05/27/97
5,632,137                       08/350,616                       05/27/97
5,632,140                       08/521,664                       05/27/97
5,632,147                       08/629,835                       05/27/97
5,632,150                       08/480,181                       05/27/97
5,632,160                       08/518,552                       05/27/97
5,632,163                       08/357,081                       05/27/97
5,632,164                       08/590,609                       05/27/97
5,632,174                       08/511,545                       05/27/97
5,632,175                       08/549,656                       05/27/97
5,632,194                       08/740,555                       05/27/97
5,632,197                       08/587,559                       05/27/97
5,632,198                       08/683,258                       05/27/97
5,632,199                       08/562,572                       05/27/97
5,632,202                       08/453,922                       05/27/97
5,632,203                       08/490,156                       05/27/97
5,632,211                       08/388,905                       05/27/97
5,632,213                       08/661,560                       05/27/97
5,632,214                       08/468,714                       05/27/97
5,632,218                       08/695,843                       05/27/97
5,632,219                       08/587,807                       05/27/97
5,632,223                       08/339,561                       05/27/97
5,632,227                       08/428,465                       05/27/97
5,632,228                       08/546,528                       05/27/97
5,632,232                       08/376,754                       05/27/97
5,632,234                       08/515,687                       05/27/97
5,632,235                       08/676,942                       05/27/97
5,632,237                       08/511,953                       05/27/97
5,632,245                       08/617,803                       05/27/97
5,632,248                       08/468,702                       05/27/97
5,632,256                       08/606,093                       05/27/97
5,632,257                       08/603,146                       05/27/97
5,632,264                       08/486,833                       05/27/97
5,632,265                       08/456,363                       05/27/97
5,632,283                       08/514,776                       05/27/97
5,632,287                       08/567,392                       05/27/97
5,632,291                       08/488,168                       05/27/97
5,632,295                       08/351,352                       05/27/97
5,632,296                       08/410,743                       05/27/97
5,632,302                       08/577,692                       05/27/97
5,632,305                       08/511,699                       05/27/97
5,632,308                       08/414,414                       05/27/97
5,632,309                       08/573,473                       05/27/97
5,632,321                       08/606,331                       05/27/97
5,632,331                       08/305,783                       05/27/97
5,632,335                       08/541,367                       05/27/97
5,632,345                       08/639,443                       05/27/97
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