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 main-
tenance 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 ap-
plicable surcharge.

                    PATENTS WHICH EXPIRED ON July 28, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                     Application                      Issue
Number                        Number                         Date

4,682,376                   06/893,684                   07/28/87
4,682,400                   06/795,036                   07/28/87
4,682,407                   06/821,095                   07/28/87
4,682,412                   06/830,979                   07/28/87
4,682,426                   06/867,988                   07/28/87
4,682,439                   06/708,515                   07/28/87
4,682,440                   06/942,616                   07/28/87
4,682,442                   06/836,041                   07/28/87
4,682,456                   06/829,911                   07/28/87
4,682,464                   06/823,093                   07/28/87
4,682,465                   06/679,305                   07/28/87
4,682,468                   06/715,120                   07/28/87
4,682,473                   06/858,378                   07/28/87
4,682,474                   06/889,963                   07/28/87
4,682,477                   06/800,746                   07/28/87
4,682,490                   06/696,956                   07/28/87
4,682,500                   06/848,930                   07/28/87
4,682,502                   06/764,568                   07/28/87
4,682,504                   06/890,589                   07/28/87
4,682,506                   06/795,394                   07/28/87
4,682,509                   06/742,224                   07/28/87
4,682,522                   06/924,289                   07/28/87
4,682,527                   06/940,104                   07/28/87
4,682,529                   06/678,856                   07/28/87
4,682,532                   06/689,367                   07/28/87
4,682,537                   06/786,211                   07/28/87
4,682,543                   06/806,793                   07/28/87
4,682,547                   06/667,472                   07/28/87
4,682,551                   06/728,927                   07/28/87
4,682,556                   06/910,592                   07/28/87
4,682,568                   06/871,004                   07/28/87
4,682,580                   06/827,826                   07/28/87
4,682,587                   06/731,392                   07/28/87
4,682,588                   06/731,394                   07/28/87
4,682,590                   06/795,473                   07/28/87
4,682,595                   06/850,686                   07/28/87
4,682,604                   06/705,916                   07/28/87
4,682,612                   06/522,536                   07/28/87
4,682,613                   06/888,386                   07/28/87
4,682,614                   06/759,426                   07/28/87
4,682,615                   06/626,702                   07/28/87
4,682,626                   06/835,916                   07/28/87
4,682,628                   06/690,194                   07/28/87
4,682,634                   06/896,268                   07/28/87
4,682,637                   06/752,652                   07/28/87
4,682,639                   06/811,751                   07/28/87
4,682,644                   06/558,496                   07/28/87
4,682,647                   06/827,258                   07/28/87
4,682,651                   06/904,442                   07/28/87
4,682,669                   06/830,487                   07/28/87
4,682,682                   06/909,923                   07/28/87
4,682,683                   06/590,201                   07/28/87
4,682,686                   06/815,999                   07/28/87
4,682,688                   06/807,453                   07/28/87
4,682,709                   06/623,123                   07/28/87
4,682,710                   06/852,368                   07/28/87
4,682,711                   06/720,695                   07/28/87
4,682,718                   06/797,369                   07/28/87
4,682,724                   06/904,881                   07/28/87
4,682,732                   06/857,985                   07/28/87
4,682,736                   06/457,654                   07/28/87
4,682,742                   06/816,629                   07/28/87
4,682,743                   06/829,092                   07/28/87
4,682,759                   06/543,947                   07/28/87
4,682,762                   06/601,109                   07/28/87
4,682,763                   06/715,403                   07/28/87
4,682,765                   06/811,106                   07/28/87
4,682,767                   06/768,897                   07/28/87
4,682,783                   06/542,655                   07/28/87
4,682,786                   06/778,244                   07/28/87
4,682,792                   06/849,987                   07/28/87
4,682,795                   06/821,808                   07/28/87
4,682,814                   06/667,278                   07/28/87
4,682,818                   06/896,631                   07/28/87
4,682,824                   06/757,520                   07/28/87
4,682,829                   06/744,180                   07/28/87
4,682,830                   06/851,074                   07/28/87
4,682,831                   06/357,459                   07/28/87
4,682,839                   06/824,156                   07/28/87
4,682,849                   06/831,079                   07/28/87
4,682,852                   06/633,409                   07/28/87
4,682,853                   06/844,051                   07/28/87
4,682,856                   06/646,930                   07/28/87
4,682,871                   06/902,886                   07/28/87
4,682,883                   06/879,107                   07/28/87
4,682,889                   06/720,411                   07/28/87
4,682,890                   06/739,969                   07/28/87
4,682,891                   06/775,582                   07/28/87
4,682,898                   06/741,775                   07/28/87
4,682,907                   06/846,751                   07/28/87
4,682,909                   06/787,674                   07/28/87
4,682,920                   06/844,094                   07/28/87
4,682,925                   06/722,152                   07/28/87
4,682,938                   06/813,591                   07/28/87
4,682,948                   06/835,664                   07/28/87
4,682,952                   06/780,776                   07/28/87
4,682,957                   06/832,358                   07/28/87
4,682,963                   06/713,939                   07/28/87
4,682,974                   06/735,834                   07/28/87
4,682,976                   06/846,364                   07/28/87
4,682,982                   06/716,871                   07/28/87
4,682,985                   06/779,321                   07/28/87
4,682,986                   06/676,504                   07/28/87
4,682,988                   06/545,321                   07/28/87
4,683,011                   06/901,136                   07/28/87
4,683,013                   06/796,917                   07/28/87
4,683,019                   06/768,534                   07/28/87
4,683,026                   06/732,166                   07/28/87
4,683,035                   06/825,703                   07/28/87
4,683,040                   06/397,783                   07/28/87
4,683,047                   06/814,207                   07/28/87
4,683,053                   06/731,808                   07/28/87
4,683,060                   06/709,372                   07/28/87
4,683,065                   06/746,041                   07/28/87
4,683,070                   06/767,744                   07/28/87
4,683,080                   06/724,463                   07/28/87
4,683,087                   06/725,167                   07/28/87
4,683,090                   06/436,494                   07/28/87
4,683,093                   06/795,457                   07/28/87
4,683,098                   06/859,531                   07/28/87
4,683,106                   06/752,426                   07/28/87
4,683,111                   06/821,844                   07/28/87
4,683,115                   06/643,888                   07/28/87
4,683,123                   06/769,519                   07/28/87
4,683,124                   06/744,441                   07/28/87
4,683,126                   06/834,619                   07/28/87
4,683,133                   06/767,606                   07/28/87
4,683,136                   06/708,746                   07/28/87
4,683,137                   06/634,510                   07/28/87
4,683,139                   06/806,609                   07/28/87
4,683,140                   06/765,534                   07/28/87
4,683,154                   06/767,218                   07/28/87
4,683,156                   06/850,862                   07/28/87
4,683,158                   06/854,816                   07/28/87
4,683,171                   06/825,545                   07/28/87
4,683,178                   06/827,023                   07/28/87
4,683,191                   06/871,992                   07/28/87
4,683,201                   06/787,564                   07/28/87
4,683,204                   06/658,977                   07/28/87
4,683,206                   06/639,632                   07/28/87
4,683,207                   06/678,295                   07/28/87
4,683,216                   06/848,259                   07/28/87
4,683,217                   06/600,173                   07/28/87
4,683,230                   06/704,973                   07/28/87
4,683,234                   06/708,885                   07/28/87
4,683,241                   06/612,193                   07/28/87
4,683,249                   06/850,448                   07/28/87
4,683,259                   06/928,847                   07/28/87
4,683,261                   06/859,111                   07/28/87
4,683,262                   06/853,090                   07/28/87
4,683,266                   06/796,031                   07/28/87
4,683,268                   06/830,410                   07/28/87
4,683,275                   06/778,597                   07/28/87
4,683,286                   06/832,453                   07/28/87
4,683,289                   06/786,682                   07/28/87
4,683,296                   06/725,594                   07/28/87
4,683,297                   06/834,669                   07/28/87
4,683,303                   06/666,443                   07/28/87
4,683,310                   06/702,579                   07/28/87
4,683,316                   06/815,604                   07/28/87
4,683,318                   06/565,460                   07/28/87
4,683,328                   06/801,370                   07/28/87
4,683,330                   06/690,804                   07/28/87
4,683,349                   06/779,962                   07/28/87
4,683,351                   06/784,065                   07/28/87
4,683,357                   06/810,796                   07/28/87
4,683,361                   06/720,106                   07/28/87
4,683,362                   06/765,374                   07/28/87
4,683,367                   06/854,677                   07/28/87
4,683,372                   06/705,184                   07/28/87
4,683,375                   06/883,438                   07/28/87
4,683,379                   06/770,723                   07/28/87
4,683,384                   06/895,216                   07/28/87
4,683,386                   06/634,693                   07/28/87
4,683,388                   06/595,729                   07/28/87
4,683,395                   06/905,368                   07/28/87
4,683,407                   06/719,150                   07/28/87
4,683,416                   06/915,483                   07/28/87
4,683,418                   06/638,020                   07/28/87
4,683,421                   06/717,989                   07/28/87
4,683,422                   06/778,145                   07/28/87
4,683,423                   06/792,805                   07/28/87
4,683,432                   06/908,576                   07/28/87
4,683,446                   06/743,799                   07/28/87
4,683,447                   06/936,228                   07/28/87
4,683,448                   06/689,902                   07/28/87
4,683,458                   06/891,129                   07/28/87
4,683,463                   06/914,529                   07/28/87
4,683,465                   06/683,579                   07/28/87
4,683,469                   06/711,912                   07/28/87
4,683,470                   06/708,328                   07/28/87
4,683,471                   06/696,662                   07/28/87
4,683,475                   06/750,847                   07/28/87
4,683,476                   06/744,353                   07/28/87
4,683,486                   06/654,285                   07/28/87
4,683,487                   06/795,465                   07/28/87
4,683,495                   06/800,890                   07/28/87
4,683,496                   06/768,957                   07/28/87
4,683,497                   06/794,518                   07/28/87
4,683,499                   06/816,169                   07/28/87
4,683,500                   06/791,331                   07/28/87
4,683,501                   06/783,352                   07/28/87
4,683,502                   06/527,721                   07/28/87
4,683,504                   06/816,796                   07/28/87
4,683,507                   06/745,090                   07/28/87
4,683,512                   06/883,267                   07/28/87
4,683,516                   06/894,673                   07/28/87
4,683,517                   06/907,248                   07/28/87
4,683,520                   06/885,351                   07/28/87
4,683,527                   06/896,027                   07/28/87
4,683,529                   06/929,603                   07/28/87
4,683,530                   06/598,644                   07/28/87
4,683,531                   06/627,253                   07/28/87
4,683,534                   06/745,477                   07/28/87
4,683,540                   06/645,759                   07/28/87
4,683,546                   06/918,682                   07/28/87
4,683,547                   06/664,739                   07/28/87
4,683,550                   06/634,999                   07/28/87
4,683,551                   06/594,211                   07/28/87
4,683,561                   06/774,418                   07/28/87
4,683,569                   06/789,528                   07/28/87
4,683,572                   06/653,255                   07/28/87
4,683,575                   06/906,121                   07/28/87
4,683,576                   06/788,720                   07/28/87
4,683,577                   06/847,921                   07/28/87
4,683,586                   06/566,899                   07/28/87
4,683,589                   06/802,694                   07/28/87

                    PATENTS WHICH EXPIRED ON July 23, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,033,117                   07/491,207                   07/23/91
5,033,119                   07/466,499                   07/23/91
5,033,122                   07/495,959                   07/23/91
5,033,124                   07/590,817                   07/23/91
5,033,126                   07/493,951                   07/23/91
5,033,127                   07/378,572                   07/23/91
5,033,129                   07/535,395                   07/23/91
5,033,131                   07/383,160                   07/23/91
5,033,137                   07/529,218                   07/23/91
5,033,138                   07/242,889                   07/23/91
5,033,141                   07/612,623                   07/23/91
5,033,151                   07/437,432                   07/23/91
5,033,159                   07/406,977                   07/23/91
5,033,162                   07/534,021                   07/23/91
5,033,171                   07/502,734                   07/23/91
5,033,176                   07/555,257                   07/23/91
5,033,177                   07/404,960                   07/23/91
5,033,180                   07/558,133                   07/23/91
5,033,189                   07/505,707                   07/23/91
5,033,192                   07/547,622                   07/23/91
5,033,194                   07/447,167                   07/23/91
5,033,206                   07/460,553                   07/23/91
5,033,209                   07/416,908                   07/23/91
5,033,213                   07/432,891                   07/23/91
5,033,215                   07/510,098                   07/23/91
5,033,218                   07/542,766                   07/23/91
5,033,219                   07/476,623                   07/23/91
5,033,226                   07/567,236                   07/23/91
5,033,231                   07/420,358                   07/23/91
5,033,238                   07/353,561                   07/23/91
5,033,253                   07/439,123                   07/23/91
5,033,261                   07/501,849                   07/23/91
5,033,264                   07/367,383                   07/23/91
5,033,283                   07/557,275                   07/23/91
5,033,286                   07/539,948                   07/23/91
5,033,301                   07/489,477                   07/23/91
5,033,302                   07/460,564                   07/23/91
5,033,304                   07/344,222                   07/23/91
5,033,316                   07/433,980                   07/23/91
5,033,325                   07/538,664                   07/23/91
5,033,326                   07/443,364                   07/23/91
5,033,332                   07/479,825                   07/23/91
5,033,333                   07/476,723                   07/23/91
5,033,334                   07/521,745                   07/23/91
5,033,340                   07/469,800                   07/23/91
5,033,349                   07/542,910                   07/23/91
5,033,350                   07/489,214                   07/23/91
5,033,371                   07/366,698                   07/23/91
5,033,375                   07/465,410                   07/23/91
5,033,379                   07/507,384                   07/23/91
5,033,384                   07/493,470                   07/23/91
5,033,391                   07/412,159                   07/23/91
5,033,395                   07/328,404                   07/23/91
5,033,399                   07/469,184                   07/23/91
5,033,400                   07/456,347                   07/23/91
5,033,401                   07/493,488                   07/23/91
5,033,402                   07/397,763                   07/23/91
5,033,404                   07/540,452                   07/23/91
5,033,414                   07/339,130                   07/23/91
5,033,420                   07/572,082                   07/23/91
5,033,422                   07/545,951                   07/23/91
5,033,424                   07/488,005                   07/23/91
5,033,428                   07/548,870                   07/23/91
5,033,440                   07/544,615                   07/23/91
5,033,450                   07/317,732                   07/23/91
5,033,452                   07/600,678                   07/23/91
5,033,453                   07/539,849                   07/23/91
5,033,456                   07/379,572                   07/23/91
5,033,468                   07/456,963                   07/23/91
5,033,477                   07/404,957                   07/23/91
5,033,478                   07/335,841                   07/23/91
5,033,479                   07/518,218                   07/23/91
5,033,483                   07/467,726                   07/23/91
5,033,486                   07/492,628                   07/23/91
5,033,487                   07/495,168                   07/23/91
5,033,499                   07/510,322                   07/23/91
5,033,504                   07/469,359                   07/23/91
5,033,507                   07/540,364                   07/23/91
5,033,514                   07/510,957                   07/23/91
5,033,515                   07/451,808                   07/23/91
5,033,520                   07/405,028                   07/23/91
5,033,527                   07/509,817                   07/23/91
5,033,536                   07/405,959                   07/23/91
5,033,552                   07/556,416                   07/23/91
5,033,556                   07/472,725                   07/23/91
5,033,559                   07/523,802                   07/23/91
5,033,566                   07/442,585                   07/23/91
5,033,567                   07/448,807                   07/23/91
5,033,571                   07/513,008                   07/23/91
5,033,572                   07/491,990                   07/23/91
5,033,574                   07/506,923                   07/23/91
5,033,575                   07/503,038                   07/23/91
5,033,577                   07/280,707                   07/23/91
5,033,580                   07/505,909                   07/23/91
5,033,586                   07/550,911                   07/23/91
5,033,587                   07/493,575                   07/23/91
5,033,588                   07/494,046                   07/23/91
5,033,593                   07/449,418                   07/23/91
5,033,594                   07/516,326                   07/23/91
5,033,604                   07/533,384                   07/23/91
5,033,607                   07/585,421                   07/23/91
5,033,608                   07/497,567                   07/23/91
5,033,609                   07/438,799                   07/23/91
5,033,611                   07/508,449                   07/23/91
5,033,616                   07/521,436                   07/23/91
5,033,619                   07/537,326                   07/23/91
5,033,624                   07/416,640                   07/23/91
5,033,643                   07/477,501                   07/23/91
5,033,644                   07/331,880                   07/23/91
5,033,647                   07/491,304                   07/23/91
5,033,652                   07/486,528                   07/23/91
5,033,656                   07/570,865                   07/23/91
5,033,660                   07/522,730                   07/23/91
5,033,662                   07/478,576                   07/23/91
5,033,670                   07/511,306                   07/23/91
5,033,672                   07/535,195                   07/23/91
5,033,678                   07/427,685                   07/23/91
5,033,685                   07/442,071                   07/23/91
5,033,689                   07/472,810                   07/23/91
5,033,690                   07/494,775                   07/23/91
5,033,691                   07/009,487                   07/23/91
5,033,695                   07/469,032                   07/23/91
5,033,696                   07/450,965                   07/23/91
5,033,697                   07/415,695                   07/23/91
5,033,698                   07/404,977                   07/23/91
5,033,704                   07/570,918                   07/23/91
5,033,707                   07/525,097                   07/23/91
5,033,713                   07/530,904                   07/23/91
5,033,718                   07/464,911                   07/23/91
5,033,724                   07/418,391                   07/23/91
5,033,730                   07/486,895                   07/23/91
5,033,731                   07/491,923                   07/23/91
5,033,734                   07/541,595                   07/23/91
5,033,751                   07/606,167                   07/23/91
5,033,756                   07/610,455                   07/23/91
5,033,759                   07/538,201                   07/23/91
5,033,762                   07/484,251                   07/23/91
5,033,766                   07/431,045                   07/23/91
5,033,767                   07/427,406                   07/23/91
5,033,768                   07/498,021                   07/23/91
5,033,770                   07/410,834                   07/23/91
5,033,778                   07/509,234                   07/23/91
5,033,781                   07/520,402                   07/23/91
5,033,785                   07/513,336                   07/23/91
5,033,789                   07/501,255                   07/23/91
5,033,791                   07/598,581                   07/23/91
5,033,792                   06/798,280                   07/23/91
5,033,798                   07/454,109                   07/23/91
5,033,801                   06/904,635                   07/23/91
5,033,803                   07/544,065                   07/23/91
5,033,807                   07/622,280                   07/23/91
5,033,809                   07/533,338                   07/23/91
5,033,810                   07/368,030                   07/23/91
5,033,823                   07/576,332                   07/23/91
5,033,826                   07/328,823                   07/23/91
5,033,827                   07/554,757                   07/23/91
5,033,838                   07/344,069                   07/23/91
5,033,839                   07/344,076                   07/23/91
5,033,847                   07/462,653                   07/23/91
5,033,848                   07/380,131                   07/23/91
5,033,862                   07/570,153                   07/23/91
5,033,871                   07/544,933                   07/23/91
5,033,874                   07/515,613                   07/23/91
5,033,879                   07/485,241                   07/23/91
5,033,885                   07/342,454                   07/23/91
5,033,896                   07/117,549                   07/23/91
5,033,897                   07/467,562                   07/23/91
5,033,898                   07/512,483                   07/23/91
5,033,900                   07/572,612                   07/23/91
5,033,905                   07/361,480                   07/23/91
5,033,907                   07/480,749                   07/23/91
5,033,908                   07/488,015                   07/23/91
5,033,912                   07/399,455                   07/23/91
5,033,919                   07/558,150                   07/23/91
5,033,922                   07/271,671                   07/23/91
5,033,932                   07/529,591                   07/23/91
5,033,933                   07/494,192                   07/23/91
5,033,935                   07/554,370                   07/23/91
5,033,944                   07/413,541                   07/23/91
5,033,953                   07/515,075                   07/23/91
5,033,954                   07/492,075                   07/23/91
5,033,957                   07/396,542                   07/23/91
5,033,966                   07/353,007                   07/23/91
5,033,967                   07/514,765                   07/23/91
5,033,969                   07/493,052                   07/23/91
5,033,976                   07/562,173                   07/23/91
5,033,978                   07/541,645                   07/23/91
5,033,982                   07/531,522                   07/23/91
5,033,986                   07/494,570                   07/23/91
5,033,988                   07/320,205                   07/23/91
5,033,989                   07/453,398                   07/23/91
5,033,993                   07/570,280                   07/23/91
5,033,994                   07/636,010                   07/23/91
5,034,005                   07/549,959                   07/23/91
5,034,016                   07/356,189                   07/23/91
5,034,025                   07/444,463                   07/23/91
5,034,031                   07/572,448                   07/23/91
5,034,032                   07/361,538                   07/23/91
5,034,034                   07/574,323                   07/23/91
5,034,035                   07/624,203                   07/23/91
5,034,048                   07/465,719                   07/23/91
5,034,052                   07/479,129                   07/23/91
5,034,057                   07/498,783                   07/23/91
5,034,069                   07/461,994                   07/23/91
5,034,070                   07/547,623                   07/23/91
5,034,082                   07/377,790                   07/23/91
5,034,096                   06/939,562                   07/23/91
5,034,097                   07/568,822                   07/23/91
5,034,099                   07/399,529                   07/23/91
5,034,101                   07/424,669                   07/23/91
5,034,103                   07/477,377                   07/23/91
5,034,104                   07/220,894                   07/23/91
5,034,110                   07/419,965                   07/23/91
5,034,114                   07/386,122                   07/23/91
5,034,115                   07/515,933                   07/23/91
5,034,126                   07/534,755                   07/23/91
5,034,127                   07/441,217                   07/23/91
5,034,128                   07/541,510                   07/23/91
5,034,140                   07/441,802                   07/23/91
5,034,147                   07/520,564                   07/23/91
5,034,154                   07/220,587                   07/23/91
5,034,155                   07/475,931                   07/23/91
5,034,159                   07/355,214                   07/23/91
5,034,163                   07/132,630                   07/23/91
5,034,167                   07/583,531                   07/23/91
5,034,171                   07/443,777                   07/23/91
5,034,175                   07/488,038                   07/23/91
5,034,184                   07/368,637                   07/23/91
5,034,186                   06/932,551                   07/23/91
5,034,189                   06/769,881                   07/23/91
5,034,191                   07/293,718                   07/23/91
5,034,206                   07/214,394                   07/23/91
5,034,214                   07/601,978                   07/23/91
5,034,220                   07/540,990                   07/23/91
5,034,227                   07/201,741                   07/23/91
5,034,239                   07/540,367                   07/23/91
5,034,243                   07/430,167                   07/23/91
5,034,248                   07/270,569                   07/23/91
5,034,267                   07/366,805                   07/23/91
5,034,270                   07/292,660                   07/23/91
5,034,274                   07/448,252                   07/23/91
5,034,286                   07/260,844                   07/23/91
5,034,287                   07/512,914                   07/23/91
5,034,311                   07/615,727                   07/23/91
5,034,312                   07/478,034                   07/23/91
5,034,315                   07/496,579                   07/23/91
5,034,317                   07/008,939                   07/23/91
5,034,321                   07/226,992                   07/23/91
5,034,325                   07/409,836                   07/23/91
5,034,327                   07/442,431                   07/23/91
5,034,329                   07/302,193                   07/23/91
5,034,330                   07/301,032                   07/23/91
5,034,331                   06/763,530                   07/23/91
5,034,333                   07/427,192                   07/23/91
5,034,337                   07/576,136                   07/23/91
5,034,338                   07/379,108                   07/23/91
5,034,347                   07/575,242                   07/23/91
5,034,348                   07/567,992                   07/23/91
5,034,351                   07/590,856                   07/23/91
5,034,353                   07/443,743                   07/23/91
5,034,361                   07/527,804                   07/23/91
5,034,369                   07/402,792                   07/23/91
5,034,374                   07/365,154                   07/23/91
5,034,384                   07/561,547                   07/23/91
5,034,385                   07/543,939                   07/23/91
5,034,387                   07/487,217                   07/23/91
5,034,391                   07/443,166                   07/23/91
5,034,399                   07/496,757                   07/23/91
5,034,400                   07/424,548                   07/23/91
5,034,407                   07/688,991                   07/23/91
5,034,408                   07/514,918                   07/23/91
5,034,409                   07/479,507                   07/23/91
5,034,417                   07/197,966                   07/23/91
5,034,428                   07/348,049                   07/23/91
5,034,437                   07/464,506                   07/23/91
5,034,439                   07/454,615                   07/23/91
5,034,450                   07/315,141                   07/23/91
5,034,457                   07/489,399                   07/23/91
5,034,458                   07/565,290                   07/23/91
5,034,475                   07/424,064                   07/23/91
5,034,476                   07/340,209                   07/23/91
5,034,477                   07/512,595                   07/23/91
5,034,478                   07/446,699                   07/23/91
5,034,484                   07/313,731                   07/23/91
5,034,485                   07/530,382                   07/23/91
5,034,493                   07/450,344                   07/23/91
5,034,495                   07/534,714                   07/23/91
5,034,496                   07/364,598                   07/23/91
5,034,500                   07/289,103                   07/23/91
5,034,519                   07/139,349                   07/23/91
5,034,520                   07/039,471                   07/23/91
5,034,522                   07/574,398                   07/23/91
5,034,529                   07/319,016                   07/23/91
5,034,530                   07/363,585                   07/23/91
5,034,535                   07/529,712                   07/23/91
5,034,548                   07/596,378                   07/23/91
5,034,550                   07/534,824                   07/23/91
5,034,560                   07/599,944                   07/23/91
5,034,562                   07/534,983                   07/23/91
5,034,573                   07/535,486                   07/23/91
5,034,576                   07/482,223                   07/23/91
5,034,579                   07/421,887                   07/23/91
5,034,590                   07/557,095                   07/23/91
5,034,598                   07/458,955                   07/23/91
5,034,600                   07/551,490                   07/23/91
5,034,601                   07/551,500                   07/23/91
5,034,602                   07/384,183                   07/23/91
5,034,607                   07/504,601                   07/23/91
5,034,610                   07/531,568                   07/23/91
5,034,614                   07/484,896                   07/23/91
5,034,622                   07/490,081                   07/23/91
5,034,627                   07/493,305                   07/23/91
5,034,636                   07/534,562                   07/23/91
5,034,643                   07/538,781                   07/23/91
5,034,648                   07/429,381                   07/23/91
5,034,649                   07/590,033                   07/23/91
5,034,657                   07/443,009                   07/23/91
5,034,663                   07/341,573                   07/23/91
5,034,664                   07/515,972                   07/23/91
5,034,671                   07/470,192                   07/23/91
5,034,676                   07/464,167                   07/23/91
5,034,684                   07/426,010                   07/23/91
5,034,690                   07/294,467                   07/23/91
5,034,696                   07/446,600                   07/23/91
5,034,702                   07/480,068                   07/23/91
5,034,712                   07/548,655                   07/23/91
5,034,716                   07/433,670                   07/23/91
5,034,717                   07/528,985                   07/23/91
5,034,724                   07/302,239                   07/23/91
5,034,729                   07/510,511                   07/23/91
5,034,734                   07/310,550                   07/23/91
5,034,737                   07/179,618                   07/23/91
5,034,738                   07/451,158                   07/23/91
5,034,739                   07/299,833                   07/23/91
5,034,746                   07/247,469                   07/23/91
5,034,752                   07/544,321                   07/23/91
5,034,753                   07/359,517                   07/23/91
5,034,754                   07/492,795                   07/23/91
5,034,755                   07/442,775                   07/23/91
5,034,758                   07/423,623                   07/23/91
5,034,773                   07/528,643                   07/23/91
5,034,793                   07/489,998                   07/23/91
5,034,805                   07/429,376                   07/23/91
5,034,808                   07/357,882                   07/23/91
5,034,814                   07/317,502                   07/23/91
5,034,817                   07/486,465                   07/23/91
5,034,822                   07/406,693                   07/23/91
5,034,823                   07/333,486                   07/23/91
5,034,829                   07/502,961                   07/23/91
5,034,834                   07/392,989                   07/23/91
5,034,849                   07/493,985                   07/23/91
5,034,852                   07/432,720                   07/23/91
5,034,859                   07/456,998                   07/23/91
5,034,865                   07/350,100                   07/23/91
5,034,870                   07/478,263                   07/23/91
5,034,877                   07/427,608                   07/23/91
5,034,881                   07/340,476                   07/23/91
5,034,885                   07/321,398                   07/23/91
5,034,897                   07/324,536                   07/23/91
5,034,935                   07/310,686                   07/23/91
5,034,949                   07/431,258                   07/23/91
5,034,950                   07/491,179                   07/23/91
5,034,965                   07/433,341                   07/23/91
5,034,968                   07/375,336                   07/23/91
5,034,974                   07/518,135                   07/23/91
5,034,987                   07/343,411                   07/23/91
5,034,989                   07/298,566                   07/23/91
5,034,991                   07/505,586                   07/23/91
5,034,992                   07/347,034                   07/23/91
5,034,997                   07/339,980                   07/23/91

                    PATENTS WHICH EXPIRED ON July 25, 1999
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,435,010                   08/137,552                   07/25/95
5,435,016                   08/280,115                   07/25/95
5,435,017                   08/168,040                   07/25/95
5,435,019                   08/115,852                   07/25/95
5,435,020                   08/281,921                   07/25/95
5,435,021                   08/138,987                   07/25/95
5,435,028                   08/198,560                   07/25/95
5,435,029                   08/194,920                   07/25/95
5,435,030                   08/125,156                   07/25/95
5,435,032                   08/185,850                   07/25/95
5,435,039                   08/246,160                   07/25/95
5,435,040                   08/349,123                   07/25/95
5,435,043                   08/156,738                   07/25/95
5,435,062                   08/272,582                   07/25/95
5,435,063                   08/192,330                   07/25/95
5,435,066                   08/272,293                   07/25/95
5,435,068                   08/151,890                   07/25/95
5,435,071                   08/103,590                   07/25/95
5,435,082                   08/105,289                   07/25/95
5,435,086                   08/289,249                   07/25/95
5,435,087                   08/168,861                   07/25/95
5,435,088                   08/324,882                   07/25/95
5,435,093                   08/228,089                   07/25/95
5,435,098                   08/100,313                   07/25/95
5,435,107                   08/108,632                   07/25/95
5,435,118                   08/241,781                   07/25/95
5,435,119                   08/301,296                   07/25/95
5,435,121                   08/115,934                   07/25/95
5,435,128                   08/152,865                   07/25/95
5,435,134                   08/039,492                   07/25/95
5,435,141                   08/285,926                   07/25/95
5,435,146                   08/311,229                   07/25/95
5,435,148                   08/127,976                   07/25/95
5,435,151                   08/240,185                   07/25/95
5,435,155                   08/169,304                   07/25/95
5,435,158                   08/191,106                   07/25/95
5,435,163                   08/255,778                   07/25/95
5,435,167                   08/184,373                   07/25/95
5,435,172                   08/190,370                   07/25/95
5,435,173                   08/213,509                   07/25/95
5,435,174                   08/300,326                   07/25/95
5,435,176                   08/146,936                   07/25/95
5,435,178                   07/969,159                   07/25/95
5,435,179                   08/261,210                   07/25/95
5,435,187                   08/264,598                   07/25/95
5,435,190                   08/211,810                   07/25/95
5,435,202                   08/041,480                   07/25/95
5,435,203                   08/123,330                   07/25/95
5,435,208                   08/217,651                   07/25/95
5,435,215                   08/162,092                   07/25/95
5,435,220                   08/048,107                   07/25/95
5,435,228                   08/320,753                   07/25/95
5,435,237                   08/383,389                   07/25/95
5,435,241                   08/200,474                   07/25/95
5,435,244                   08/109,270                   07/25/95
5,435,246                   08/261,718                   07/25/95
5,435,251                   08/162,535                   07/25/95
5,435,253                   08/249,959                   07/25/95
5,435,254                   08/108,459                   07/25/95
5,435,256                   08/085,926                   07/25/95
5,435,257                   08/169,856                   07/25/95
5,435,260                   08/140,890                   07/25/95
5,435,261                   08/174,160                   07/25/95
5,435,263                   08/216,424                   07/25/95
5,435,270                   08/199,702                   07/25/95
5,435,272                   08/193,097                   07/25/95
5,435,274                   08/162,342                   07/25/95
5,435,289                   08/244,816                   07/25/95
5,435,295                   08/154,104                   07/25/95
5,435,305                   08/066,910                   07/25/95
5,435,308                   07/914,279                   07/25/95
5,435,313                   08/211,326                   07/25/95
5,435,314                   08/218,005                   07/25/95
5,435,315                   08/188,249                   07/25/95
5,435,318                   07/955,747                   07/25/95
5,435,320                   08/010,840                   07/25/95
5,435,321                   08/164,565                   07/25/95
5,435,325                   07/310,413                   07/25/95
5,435,328                   08/114,931                   07/25/95
5,435,333                   08/258,516                   07/25/95
5,435,349                   08/048,141                   07/25/95
5,435,354                   08/140,991                   07/25/95
5,435,355                   08/134,222                   07/25/95
5,435,357                   08/301,060                   07/25/95
5,435,363                   08/020,150                   07/25/95
5,435,367                   08/114,930                   07/25/95
5,435,371                   08/204,519                   07/25/95
5,435,374                   08/141,817                   07/25/95
5,435,383                   08/190,670                   07/25/95
5,435,384                   08/277,625                   07/25/95
5,435,397                   08/155,733                   07/25/95
5,435,398                   08/299,574                   07/25/95
5,435,399                   08/271,064                   07/25/95
5,435,405                   08/230,964                   07/25/95
5,435,408                   07/728,167                   07/25/95
5,435,413                   08/108,232                   07/25/95
5,435,419                   08/105,004                   07/25/95
5,435,420                   08/291,379                   07/25/95
5,435,421                   08/147,972                   07/25/95
5,435,426                   08/022,704                   07/25/95
5,435,433                   08/212,703                   07/25/95
5,435,444                   08/207,180                   07/25/95
5,435,447                   08/199,852                   07/25/95
5,435,448                   08/222,446                   07/25/95
5,435,449                   08/133,831                   07/25/95
5,435,457                   08/095,951                   07/25/95
5,435,462                   08/181,845                   07/25/95
5,435,463                   08/173,372                   07/25/95
5,435,464                   08/243,899                   07/25/95
5,435,467                   08/230,074                   07/25/95
5,435,470                   08/210,609                   07/25/95
5,435,473                   08/320,491                   07/25/95
5,435,475                   08/146,883                   07/25/95
5,435,479                   08/268,908                   07/25/95
5,435,486                   08/230,771                   07/25/95
5,435,488                   08/198,148                   07/25/95
5,435,501                   08/116,509                   07/25/95
5,435,508                   08/283,530                   07/25/95
5,435,510                   08/172,268                   07/25/95
5,435,511                   08/186,643                   07/25/95
5,435,513                   08/227,117                   07/25/95
5,435,518                   08/139,075                   07/25/95
5,435,549                   08/166,526                   07/25/95
5,435,552                   08/126,776                   07/25/95
5,435,555                   08/328,361                   07/25/95
5,435,557                   08/295,010                   07/25/95
5,435,561                   08/262,016                   07/25/95
5,435,566                   08/229,916                   07/25/95
5,435,567                   08/259,064                   07/25/95
5,435,568                   08/150,994                   07/25/95
5,435,570                   08/353,808                   07/25/95
5,435,572                   08/204,665                   07/25/95
5,435,587                   08/357,237                   07/25/95
5,435,588                   08/039,582                   07/25/95
5,435,592                   08/122,042                   07/25/95
5,435,598                   08/203,635                   07/25/95
5,435,602                   08/028,817                   07/25/95
5,435,607                   08/117,419                   07/25/95
5,435,610                   08/214,439                   07/25/95
5,435,611                   08/273,232                   07/25/95
5,435,620                   08/243,893                   07/25/95
5,435,623                   07/717,508                   07/25/95
5,435,626                   08/262,894                   07/25/95
5,435,627                   08/045,752                   07/25/95
5,435,630                   08/233,497                   07/25/95
5,435,644                   08/151,604                   07/25/95
5,435,647                   08/276,695                   07/25/95
5,435,648                   08/288,835                   07/25/95
5,435,652                   08/175,713                   07/25/95
5,435,691                   08/147,986                   07/25/95
5,435,692                   08/279,913                   07/25/95
5,435,693                   08/198,889                   07/25/95
5,435,695                   08/111,357                   07/25/95
5,435,698                   08/099,167                   07/25/95
5,435,712                   08/159,511                   07/25/95
5,435,727                   08/131,979                   07/25/95
5,435,728                   08/267,494                   07/25/95
5,435,729                   08/034,762                   07/25/95
5,435,731                   08/241,923                   07/25/95
5,435,734                   08/058,046                   07/25/95
5,435,747                   08/108,600                   07/25/95
5,435,751                   08/108,604                   07/25/95
5,435,755                   08/181,178                   07/25/95
5,435,759                   08/208,370                   07/25/95
5,435,762                   08/132,780                   07/25/95
5,435,764                   08/281,185                   07/25/95
5,435,768                   08/237,667                   07/25/95
5,435,772                   08/054,167                   07/25/95
5,435,778                   08/041,708                   07/25/95
5,435,781                   08/140,852                   07/25/95
5,435,786                   08/029,486                   07/25/95
5,435,787                   08/090,161                   07/25/95
5,435,801                   08/282,493                   07/25/95
5,435,803                   08/084,918                   07/25/95
5,435,806                   08/264,004                   07/25/95
5,435,809                   08/070,019                   07/25/95
5,435,812                   07/912,369                   07/25/95
5,435,820                   08/308,862                   07/25/95
5,435,822                   08/198,682                   07/25/95
5,435,836                   08/173,457                   07/25/95
5,435,837                   08/161,351                   07/25/95
5,435,842                   07/947,756                   07/25/95
5,435,854                   07/903,237                   07/25/95
5,435,855                   08/233,779                   07/25/95
5,435,878                   07/678,255                   07/25/95
5,435,911                   08/050,456                   07/25/95
5,435,918                   08/074,573                   07/25/95
5,435,919                   08/340,994                   07/25/95
5,435,920                   08/087,740                   07/25/95
5,435,926                   08/263,291                   07/25/95
5,435,927                   08/146,185                   07/25/95
5,435,933                   08/111,676                   07/25/95
5,435,934                   08/235,813                   07/25/95
5,435,936                   08/114,402                   07/25/95
5,435,938                   08/208,303                   07/25/95
5,435,939                   08/089,070                   07/25/95
5,435,949                   08/110,062                   07/25/95
5,435,960                   08/182,571                   07/25/95
5,435,964                   08/083,463                   07/25/95
5,435,981                   08/133,866                   07/25/95
5,435,982                   08/267,295                   07/25/95
5,435,988                   08/024,962                   07/25/95
5,435,997                   08/193,435                   07/25/95
5,436,007                   08/077,308                   07/25/95
5,436,013                   08/295,838                   07/25/95
5,436,016                   08/111,930                   07/25/95
5,436,019                   07/918,951                   07/25/95
5,436,028                   07/918,741                   07/25/95
5,436,032                   08/172,147                   07/25/95
5,436,037                   07/945,617                   07/25/95
5,436,042                   08/212,536                   07/25/95
5,436,045                   08/147,909                   07/25/95
5,436,046                   08/250,574                   07/25/95
5,436,053                   08/044,803                   07/25/95
5,436,064                   08/111,521                   07/25/95
5,436,102                   08/120,129                   07/25/95
5,436,110                   08/266,890                   07/25/95
5,436,116                   08/117,859                   07/25/95
5,436,117                   08/340,186                   07/25/95
5,436,131                   08/045,264                   07/25/95
5,436,137                   08/039,778                   07/25/95
5,436,138                   08/090,383                   07/25/95
5,436,143                   07/995,791                   07/25/95
5,436,147                   08/078,753                   07/25/95
5,436,160                   08/190,391                   07/25/95
5,436,162                   07/945,240                   07/25/95
5,436,196                   08/318,544                   07/25/95
5,436,197                   08/116,639                   07/25/95
5,436,200                   08/336,692                   07/25/95
5,436,222                   08/031,773                   07/25/95
5,436,232                   08/178,537                   07/25/95
5,436,235                   08/016,980                   07/25/95
5,436,249                   08/243,661                   07/25/95
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