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 December 9, 1998
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

Patent                     Application                      Issue
Number                        Number                         Date

4,627,115                   06/769,386                   12/09/86
4,627,132                   06/668,797                   12/09/86
4,627,134                   06/821,175                   12/09/86
4,627,136                   06/374,604                   12/09/86
4,627,139                   06/506,295                   12/09/86
4,627,142                   06/617,855                   12/09/86
4,627,145                   06/610,597                   12/09/86
4,627,149                   06/600,831                   12/09/86
4,627,158                   06/762,331                   12/09/86
4,627,163                   06/632,978                   12/09/86
4,627,170                   06/788,446                   12/09/86
4,627,173                   06/483,973                   12/09/86
4,627,177                   06/761,662                   12/09/86
4,627,179                   06/753,694                   12/09/86
4,627,190                   06/632,324                   12/09/86
4,627,194                   06/588,794                   12/09/86
4,627,197                   06/559,522                   12/09/86
4,627,199                   06/653,364                   12/09/86
4,627,204                   06/720,998                   12/09/86
4,627,206                   06/775,382                   12/09/86
4,627,213                   06/506,920                   12/09/86
4,627,218                   06/753,810                   12/09/86
4,627,219                   06/640,214                   12/09/86
4,627,221                   06/765,992                   12/09/86
4,627,231                   06/669,190                   12/09/86
4,627,239                   06/695,744                   12/09/86
4,627,241                   06/650,887                   12/09/86
4,627,242                   06/601,994                   12/09/86
4,627,243                   06/780,278                   12/09/86
4,627,254                   06/696,199                   12/09/86
4,627,258                   06/750,856                   12/09/86
4,627,259                   06/802,724                   12/09/86
4,627,262                   06/662,638                   12/09/86
4,627,268                   06/757,220                   12/09/86
4,627,274                   06/749,471                   12/09/86
4,627,277                   06/735,372                   12/09/86
4,627,280                   06/739,476                   12/09/86
4,627,283                   06/791,711                   12/09/86
4,627,284                   06/757,165                   12/09/86
4,627,289                   06/687,425                   12/09/86
4,627,292                   06/627,667                   12/09/86
4,627,300                   06/657,402                   12/09/86
4,627,308                   06/604,722                   12/09/86
4,627,311                   06/591,876                   12/09/86
4,627,314                   06/664,613                   12/09/86
4,627,324                   06/745,163                   12/09/86
4,627,333                   06/675,207                   12/09/86
4,627,339                   06/682,832                   12/09/86
4,627,343                   06/743,375                   12/09/86
4,627,345                   06/679,996                   12/09/86
4,627,362                   06/622,730                   12/09/86
4,627,370                   06/491,962                   12/09/86
4,627,376                   06/729,666                   12/09/86
4,627,391                   06/685,459                   12/09/86
4,627,395                   06/724,313                   12/09/86
4,627,399                   06/699,542                   12/09/86
4,627,409                   06/782,607                   12/09/86
4,627,412                   06/726,685                   12/09/86
4,627,415                   06/794,783                   12/09/86
4,627,416                   06/586,603                   12/09/86
4,627,417                   06/642,373                   12/09/86
4,627,418                   06/570,858                   12/09/86
4,627,421                   06/637,419                   12/09/86
4,627,436                   06/585,112                   12/09/86
4,627,444                   06/746,910                   12/09/86
4,627,445                   06/720,906                   12/09/86
4,627,453                   06/621,244                   12/09/86
4,627,470                   06/616,158                   12/09/86
4,627,474                   06/614,774                   12/09/86
4,627,475                   06/768,352                   12/09/86
4,627,482                   06/698,268                   12/09/86
4,627,496                   06/760,259                   12/09/86
4,627,503                   06/522,896                   12/09/86
4,627,518                   06/727,313                   12/09/86
4,627,520                   06/774,187                   12/09/86
4,627,521                   06/618,114                   12/09/86
4,627,527                   06/670,889                   12/09/86
4,627,531                   06/726,790                   12/09/86
4,627,532                   06/709,399                   12/09/86
4,627,533                   06/665,594                   12/09/86
4,627,535                   06/705,989                   12/09/86
4,627,540                   06/496,989                   12/09/86
4,627,543                   06/748,548                   12/09/86
4,627,544                   06/692,034                   12/09/86
4,627,546                   06/579,243                   12/09/86
4,627,551                   06/586,118                   12/09/86
4,627,552                   06/663,034                   12/09/86
4,627,553                   06/692,913                   12/09/86
4,627,571                   06/711,838                   12/09/86
4,627,572                   06/694,655                   12/09/86
4,627,576                   06/722,209                   12/09/86
4,627,579                   06/617,319                   12/09/86
4,627,582                   06/700,911                   12/09/86
4,627,588                   06/648,659                   12/09/86
4,627,597                   06/810,007                   12/09/86
4,627,619                   06/696,705                   12/09/86
4,627,628                   06/703,888                   12/09/86
4,627,637                   06/714,426                   12/09/86
4,627,638                   06/712,254                   12/09/86
4,627,648                   06/806,514                   12/09/86
4,627,650                   06/725,325                   12/09/86
4,627,653                   06/769,830                   12/09/86
4,627,656                   06/719,140                   12/09/86
4,627,659                   06/731,028                   12/09/86
4,627,667                   06/623,947                   12/09/86
4,627,669                   06/706,154                   12/09/86
4,627,670                   06/755,502                   12/09/86
4,627,677                   06/738,864                   12/09/86
4,627,679                   06/673,710                   12/09/86
4,627,688                   06/800,095                   12/09/86
4,627,690                   06/709,921                   12/09/86
4,627,693                   06/672,355                   12/09/86
4,627,715                   06/645,916                   12/09/86
4,627,721                   06/800,176                   12/09/86
4,627,722                   06/646,638                   12/09/86
4,627,728                   06/584,204                   12/09/86
4,627,731                   06/772,106                   12/09/86
4,627,735                   06/699,335                   12/09/86
4,627,743                   06/632,360                   12/09/86
4,627,748                   06/714,478                   12/09/86
4,627,750                   06/246,696                   12/09/86
4,627,751                   06/745,750                   12/09/86
4,627,757                   06/691,456                   12/09/86
4,627,767                   06/816,993                   12/09/86
4,627,772                   06/643,658                   12/09/86
4,627,785                   06/610,032                   12/09/86
4,627,794                   06/738,061                   12/09/86
4,627,796                   06/657,263                   12/09/86
4,627,804                   06/840,478                   12/09/86
4,627,805                   06/646,608                   12/09/86
4,627,807                   06/720,419                   12/09/86
4,627,811                   06/692,305                   12/09/86
4,627,818                   06/769,558                   12/09/86
4,627,828                   06/583,465                   12/09/86
4,627,839                   06/800,281                   12/09/86
4,627,842                   06/672,926                   12/09/86
4,627,853                   06/738,994                   12/09/86
4,627,855                   06/641,999                   12/09/86
4,627,865                   06/650,296                   12/09/86
4,627,873                   06/753,892                   12/09/86
4,627,888                   06/582,455                   12/09/86
4,627,889                   06/497,307                   12/09/86
4,627,892                   06/704,385                   12/09/86
4,627,893                   06/594,246                   12/09/86
4,627,900                   06/412,056                   12/09/86
4,627,901                   06/722,160                   12/09/86
4,627,902                   06/597,164                   12/09/86
4,627,914                   06/830,526                   12/09/86
4,627,915                   06/592,631                   12/09/86
4,627,917                   06/725,279                   12/09/86
4,627,921                   06/728,289                   12/09/86
4,627,924                   06/700,342                   12/09/86
4,627,925                   06/719,676                   12/09/86
4,627,926                   06/651,900                   12/09/86
4,627,952                   06/689,326                   12/09/86
4,627,954                   06/607,472                   12/09/86
4,627,955                   06/607,474                   12/09/86
4,627,971                   06/725,832                   12/09/86
4,627,981                   06/709,180                   12/09/86
4,627,987                   06/683,972                   12/09/86
4,628,009                   06/796,526                   12/09/86
4,628,012                   06/799,945                   12/09/86
4,628,016                   06/696,578                   12/09/86
4,628,020                   06/338,640                   12/09/86
4,628,029                   06/526,407                   12/09/86
4,628,030                   06/639,377                   12/09/86
4,628,031                   06/652,586                   12/09/86
4,628,038                   06/749,322                   12/09/86
4,628,047                   06/498,639                   12/09/86
4,628,048                   06/842,059                   12/09/86
4,628,050                   06/800,114                   12/09/86
4,628,053                   06/784,903                   12/09/86
4,628,055                   06/661,017                   12/09/86
4,628,063                   06/587,398                   12/09/86
4,628,088                   06/631,654                   12/09/86
4,628,095                   06/741,648                   12/09/86
4,628,097                   06/645,947                   12/09/86
4,628,099                   06/720,844                   12/09/86
4,628,104                   06/720,917                   12/09/86
4,628,110                   06/666,404                   12/09/86
4,628,141                   06/737,782                   12/09/86
4,628,147                   06/725,590                   12/09/86
4,628,148                   06/715,177                   12/09/86
4,628,149                   06/444,097                   12/09/86
4,628,150                   06/516,910                   12/09/86
4,628,156                   06/453,322                   12/09/86
4,628,159                   06/668,754                   12/09/86
4,628,169                   06/552,324                   12/09/86
4,628,178                   06/737,397                   12/09/86
4,628,187                   06/699,535                   12/09/86
4,628,188                   06/692,888                   12/09/86
4,628,192                   06/797,944                   12/09/86
4,628,197                   06/612,284                   12/09/86
4,628,205                   06/721,264                   12/09/86
4,628,213                   06/764,154                   12/09/86
4,628,215                   06/651,140                   12/09/86
4,628,217                   06/592,149                   12/09/86
4,628,224                   06/771,957                   12/09/86
4,628,230                   06/762,716                   12/09/86
4,628,235                   06/777,747                   12/09/86
4,628,240                   06/673,742                   12/09/86
4,628,241                   06/678,566                   12/09/86
4,628,249                   06/630,491                   12/09/86
4,628,275                   06/759,717                   12/09/86
4,628,277                   06/729,455                   12/09/86
4,628,280                   06/764,142                   12/09/86
4,628,281                   06/798,081                   12/09/86
4,628,283                   06/548,924                   12/09/86
4,628,284                   06/740,461                   12/09/86
4,628,287                   06/532,892                   12/09/86
4,628,288                   06/721,895                   12/09/86
4,628,294                   06/800,718                   12/09/86
4,628,297                   06/696,477                   12/09/86
4,628,301                   06/666,399                   12/09/86
4,628,307                   06/683,104                   12/09/86
4,628,311                   06/543,632                   12/09/86
4,628,312                   06/543,405                   12/09/86
4,628,316                   06/585,804                   12/09/86
4,628,317                   06/288,033                   12/09/86
4,628,322                   06/840,109                   12/09/86
4,628,325                   06/583,634                   12/09/86
4,628,327                   06/694,547                   12/09/86
4,628,336                   06/753,905                   12/09/86
4,628,337                   06/711,837                   12/09/86
4,628,338                   06/779,618                   12/09/86
4,628,344                   06/483,126                   12/09/86
4,628,350                   06/766,320                   12/09/86
4,628,352                   06/767,772                   12/09/86
4,628,366                   06/507,719                   12/09/86
4,628,381                   06/592,159                   12/09/86
4,628,390                   06/582,150                   12/09/86
4,628,394                   06/655,126                   12/09/86
4,628,406                   06/736,205                   12/09/86
4,628,417                   06/806,912                   12/09/86
4,628,420                   06/537,818                   12/09/86
4,628,424                   06/687,151                   12/09/86
4,628,426                   06/793,430                   12/09/86
4,628,433                   06/814,937                   12/09/86
4,628,445                   06/848,620                   12/09/86
4,628,447                   06/667,391                   12/09/86
4,628,450                   06/810,884                   12/09/86
4,628,454                   06/496,566                   12/09/86
4,628,457                   06/590,670                   12/09/86
4,628,458                   06/621,233                   12/09/86
4,628,474                   06/613,924                   12/09/86
4,628,475                   06/576,720                   12/09/86
4,628,477                   06/542,326                   12/09/86
4,628,497                   06/578,459                   12/09/86
4,628,499                   06/616,292                   12/09/86
4,628,501                   06/566,622                   12/09/86
4,628,505                   06/680,457                   12/09/86
4,628,506                   06/661,337                   12/09/86
4,628,507                   06/599,362                   12/09/86
4,628,509                   06/609,445                   12/09/86
4,628,512                   06/690,726                   12/09/86
4,628,516                   06/664,660                   12/09/86
4,628,520                   06/623,328                   12/09/86
4,628,521                   06/625,880                   12/09/86
4,628,530                   06/579,737                   12/09/86
4,628,532                   06/513,403                   12/09/86
4,628,533                   06/573,810                   12/09/86
4,628,537                   06/543,056                   12/09/86
4,628,540                   06/715,570                   12/09/86

                   PATENTS WHICH EXPIRED ON December 4, 1998
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

4,974,263                   07/383,582                   12/04/90
4,974,267                   07/467,176                   12/04/90
4,974,272                   07/441,472                   12/04/90
4,974,275                   07/445,419                   12/04/90
4,974,283                   07/285,042                   12/04/90
4,974,285                   07/350,231                   12/04/90
4,974,290                   07/391,951                   12/04/90
4,974,296                   07/484,600                   12/04/90
4,974,317                   07/340,633                   12/04/90
4,974,318                   07/458,384                   12/04/90
4,974,329                   07/326,524                   12/04/90
4,974,333                   07/362,750                   12/04/90
4,974,334                   07/221,460                   12/04/90
4,974,335                   07/356,377                   12/04/90
4,974,344                   07/399,611                   12/04/90
4,974,347                   07/217,871                   12/04/90
4,974,349                   07/431,014                   12/04/90
4,974,351                   06/915,270                   12/04/90
4,974,355                   07/345,456                   12/04/90
4,974,364                   07/422,748                   12/04/90
4,974,365                   07/396,707                   12/04/90
4,974,366                   07/454,606                   12/04/90
4,974,367                   07/455,636                   12/04/90
4,974,379                   07/446,748                   12/04/90
4,974,400                   07/378,350                   12/04/90
4,974,406                   07/429,394                   12/04/90
4,974,409                   07/313,538                   12/04/90
4,974,412                   07/331,678                   12/04/90
4,974,413                   07/392,549                   12/04/90
4,974,414                   07/290,413                   12/04/90
4,974,416                   07/316,558                   12/04/90
4,974,417                   07/498,859                   12/04/90
4,974,418                   07/499,089                   12/04/90
4,974,424                   07/237,644                   12/04/90
4,974,426                   07/367,920                   12/04/90
4,974,428                   07/354,146                   12/04/90
4,974,435                   07/425,061                   12/04/90
4,974,437                   07/375,969                   12/04/90
4,974,442                   07/343,763                   12/04/90
4,974,443                   07/428,459                   12/04/90
4,974,446                   07/413,426                   12/04/90
4,974,450                   07/241,848                   12/04/90
4,974,451                   07/447,475                   12/04/90
4,974,453                   07/424,028                   12/04/90
4,974,454                   07/340,706                   12/04/90
4,974,456                   07/368,625                   12/04/90
4,974,457                   07/337,476                   12/04/90
4,974,458                   07/382,202                   12/04/90
4,974,465                   07/359,701                   12/04/90
4,974,471                   07/277,295                   12/04/90
4,974,483                   07/263,428                   12/04/90
4,974,486                   07/245,562                   12/04/90
4,974,488                   07/448,261                   12/04/90
4,974,496                   07/302,749                   12/04/90
4,974,503                   07/521,381                   12/04/90
4,974,506                   07/252,272                   12/04/90
4,974,509                   07/212,315                   12/04/90
4,974,511                   07/519,742                   12/04/90
4,974,512                   07/422,777                   12/04/90
4,974,513                   07/379,365                   12/04/90
4,974,514                   06/305,677                   12/04/90
4,974,527                   07/468,475                   12/04/90
4,974,528                   07/447,600                   12/04/90
4,974,535                   07/352,869                   12/04/90
4,974,536                   07/252,061                   12/04/90
4,974,539                   07/369,172                   12/04/90
4,974,542                   07/190,355                   12/04/90
4,974,543                   06/834,721                   12/04/90
4,974,546                   07/458,157                   12/04/90
4,974,547                   07/147,852                   12/04/90
4,974,553                   07/478,726                   12/04/90
4,974,562                   07/451,180                   12/04/90
4,974,568                   07/418,815                   12/04/90
4,974,569                   07/481,314                   12/04/90
4,974,571                   07/315,404                   12/04/90
4,974,574                   07/439,141                   12/04/90
4,974,575                   07/478,521                   12/04/90
4,974,577                   07/460,403                   12/04/90
4,974,591                   07/264,105                   12/04/90
4,974,592                   07/270,960                   12/04/90
4,974,595                   07/272,236                   12/04/90
4,974,596                   07/386,211                   12/04/90
4,974,597                   07/254,371                   12/04/90
4,974,605                   07/455,295                   12/04/90
4,974,608                   07/375,600                   12/04/90
4,974,613                   07/350,358                   12/04/90
4,974,614                   07/233,222                   12/04/90
4,974,622                   07/468,556                   12/04/90
4,974,633                   07/454,026                   12/04/90
4,974,634                   07/367,842                   12/04/90
4,974,636                   07/489,488                   12/04/90
4,974,638                   07/260,775                   12/04/90
4,974,641                   07/367,289                   12/04/90
4,974,648                   07/479,654                   12/04/90
4,974,654                   07/437,313                   12/04/90
4,974,671                   07/376,985                   12/04/90
4,974,673                   07/486,296                   12/04/90
4,974,677                   07/422,200                   12/04/90
4,974,683                   07/438,940                   12/04/90
4,974,684                   07/485,181                   12/04/90
4,974,685                   07/405,514                   12/04/90
4,974,688                   07/378,065                   12/04/90
4,974,694                   07/313,454                   12/04/90
4,974,700                   07/364,229                   12/04/90
4,974,704                   07/342,671                   12/04/90
4,974,706                   07/309,345                   12/04/90
4,974,708                   07/357,454                   12/04/90
4,974,710                   06/717,114                   12/04/90
4,974,716                   07/340,703                   12/04/90
4,974,719                   07/192,923                   12/04/90
4,974,721                   07/375,252                   12/04/90
4,974,734                   07/412,787                   12/04/90
4,974,743                   07/313,681                   12/04/90
4,974,746                   07/515,073                   12/04/90
4,974,749                   07/272,573                   12/04/90
4,974,750                   07/419,548                   12/04/90
4,974,761                   07/350,319                   12/04/90
4,974,765                   07/288,243                   12/04/90
4,974,772                   07/443,995                   12/04/90
4,974,777                   07/412,026                   12/04/90
4,974,779                   07/337,009                   12/04/90
4,974,780                   07/367,840                   12/04/90
4,974,784                   07/421,636                   12/04/90
4,974,793                   07/451,184                   12/04/90
4,974,798                   07/451,702                   12/04/90
4,974,801                   07/412,781                   12/04/90
4,974,810                   07/452,248                   12/04/90
4,974,811                   07/527,910                   12/04/90
4,974,816                   07/005,670                   12/04/90
4,974,822                   07/350,549                   12/04/90
4,974,825                   07/242,401                   12/04/90
4,974,832                   07/481,580                   12/04/90
4,974,834                   07/250,906                   12/04/90
4,974,836                   07/341,029                   12/04/90
4,974,839                   07/461,226                   12/04/90
4,974,841                   07/359,268                   12/04/90
4,974,842                   07/430,425                   12/04/90
4,974,843                   07/339,616                   12/04/90
4,974,851                   07/465,930                   12/04/90
4,974,853                   07/441,874                   12/04/90
4,974,855                   07/441,818                   12/04/90
4,974,856                   07/442,228                   12/04/90
4,974,861                   07/429,364                   12/04/90
4,974,864                   07/425,942                   12/04/90
4,974,867                   07/397,354                   12/04/90
4,974,868                   07/430,017                   12/04/90
4,974,869                   07/320,631                   12/04/90
4,974,871                   07/461,696                   12/04/90
4,974,872                   07/340,133                   12/04/90
4,974,877                   07/437,179                   12/04/90
4,974,879                   07/278,811                   12/04/90
4,974,885                   07/429,382                   12/04/90
4,974,889                   06/683,864                   12/04/90
4,974,894                   07/522,656                   12/04/90
4,974,895                   07/456,500                   12/04/90
4,974,896                   07/398,571                   12/04/90
4,974,900                   06/920,252                   12/04/90
4,974,903                   07/213,281                   12/04/90
4,974,907                   07/384,529                   12/04/90
4,974,908                   07/481,872                   12/04/90
4,974,915                   07/439,248                   12/04/90
4,974,932                   07/508,629                   12/04/90
4,974,935                   07/373,130                   12/04/90
4,974,951                   07/409,883                   12/04/90
4,974,957                   07/305,852                   12/04/90
4,974,958                   07/378,122                   12/04/90
4,974,960                   07/226,703                   12/04/90
4,974,966                   07/411,272                   12/04/90
4,974,967                   07/460,399                   12/04/90
4,974,972                   07/456,950                   12/04/90
4,974,976                   07/333,863                   12/04/90
4,974,986                   07/399,314                   12/04/90
4,974,987                   07/376,043                   12/04/90
4,974,990                   07/426,735                   12/04/90
4,974,992                   07/254,618                   12/04/90
4,974,996                   07/512,009                   12/04/90
4,975,004                   07/433,901                   12/04/90
4,975,011                   07/413,246                   12/04/90
4,975,013                   07/424,063                   12/04/90
4,975,017                   07/205,187                   12/04/90
4,975,023                   07/375,862                   12/04/90
4,975,027                   07/362,993                   12/04/90
4,975,029                   07/314,138                   12/04/90
4,975,034                   07/331,244                   12/04/90
4,975,040                   07/493,687                   12/04/90
4,975,041                   07/353,876                   12/04/90
4,975,045                   06/854,791                   12/04/90
4,975,053                   07/404,347                   12/04/90
4,975,062                   07/464,579                   12/04/90
4,975,065                   07/412,651                   12/04/90
4,975,067                   07/413,513                   12/04/90
4,975,071                   07/436,948                   12/04/90
4,975,092                   07/438,139                   12/04/90
4,975,093                   07/385,560                   12/04/90
4,975,094                   07/390,278                   12/04/90
4,975,097                   07/454,473                   12/04/90
4,975,098                   07/200,685                   12/04/90
4,975,105                   07/231,492                   12/04/90
4,975,108                   06/769,082                   12/04/90
4,975,111                   07/315,628                   12/04/90
4,975,114                   07/404,609                   12/04/90
4,975,117                   07/325,420                   12/04/90
4,975,131                   07/338,420                   12/04/90
4,975,143                   07/440,211                   12/04/90
4,975,148                   07/280,683                   12/04/90
4,975,153                   07/397,805                   12/04/90
4,975,156                   07/347,606                   12/04/90
4,975,162                   07/377,448                   12/04/90
4,975,164                   07/457,604                   12/04/90
4,975,166                   07/454,718                   12/04/90
4,975,176                   07/093,746                   12/04/90
4,975,178                   07/416,202                   12/04/90
4,975,179                   07/399,181                   12/04/90
4,975,182                   07/412,520                   12/04/90
4,975,186                   06/802,914                   12/04/90
4,975,190                   07/494,869                   12/04/90
4,975,195                   07/130,751                   12/04/90
4,975,199                   07/427,766                   12/04/90
4,975,208                   07/486,974                   12/04/90
4,975,210                   07/272,359                   12/04/90
4,975,213                   07/294,124                   12/04/90
4,975,223                   07/305,647                   12/04/90
4,975,225                   07/320,204                   12/04/90
4,975,226                   07/220,616                   12/04/90
4,975,228                   07/226,348                   12/04/90
4,975,230                   07/208,886                   12/04/90
4,975,232                   07/231,914                   12/04/90
4,975,235                   07/401,478                   12/04/90
4,975,238                   07/239,309                   12/04/90
4,975,241                   07/226,109                   12/04/90
4,975,243                   07/309,112                   12/04/90
4,975,251                   07/185,588                   12/04/90
4,975,257                   07/261,376                   12/04/90
4,975,258                   07/386,397                   12/04/90
4,975,261                   07/247,239                   12/04/90
4,975,264                   07/362,154                   12/04/90
4,975,277                   07/227,211                   12/04/90
4,975,280                   07/299,085                   12/04/90
4,975,287                   07/402,210                   12/04/90
4,975,290                   07/207,123                   12/04/90
4,975,293                   07/141,857                   12/04/90
4,975,295                   07/422,564                   12/04/90
4,975,300                   07/251,678                   12/04/90
4,975,301                   07/288,852                   12/04/90
4,975,314                   07/236,389                   12/04/90
4,975,315                   07/168,441                   12/04/90
4,975,332                   07/302,530                   12/04/90
4,975,335                   07/341,073                   12/04/90
4,975,336                   07/343,592                   12/04/90
4,975,345                   07/483,204                   12/04/90
4,975,358                   07/422,723                   12/04/90
4,975,365                   07/048,846                   12/04/90
4,975,367                   07/079,692                   12/04/90
4,975,368                   07/279,596                   12/04/90
4,975,371                   07/054,264                   12/04/90
4,975,392                   07/439,276                   12/04/90
4,975,395                   07/332,910                   12/04/90
4,975,400                   07/481,764                   12/04/90
4,975,406                   07/317,869                   12/04/90
4,975,411                   07/052,582                   12/04/90
4,975,413                   07/084,614                   12/04/90
4,975,416                   07/435,039                   12/04/90
4,975,422                   07/368,232                   12/04/90
4,975,423                   07/351,332                   12/04/90
4,975,427                   07/415,196                   12/04/90
4,975,428                   07/200,809                   12/04/90
4,975,429                   07/486,325                   12/04/90
4,975,430                   07/367,993                   12/04/90
4,975,440                   07/031,834                   12/04/90
4,975,442                   07/308,582                   12/04/90
4,975,446                   07/346,493                   12/04/90
4,975,453                   07/357,822                   12/04/90
4,975,454                   07/336,225                   12/04/90
4,975,455                   07/336,224                   12/04/90
4,975,461                   06/876,053                   12/04/90
4,975,463                   07/393,608                   12/04/90
4,975,466                   07/282,928                   12/04/90
4,975,479                   07/424,637                   12/04/90
4,975,482                   07/395,616                   12/04/90
4,975,484                   07/376,195                   12/04/90
4,975,485                   07/299,240                   12/04/90
4,975,487                   07/269,041                   12/04/90
4,975,489                   07/369,362                   12/04/90
4,975,491                   07/298,438                   12/04/90
4,975,494                   07/486,568                   12/04/90
4,975,508                   07/269,392                   12/04/90
4,975,509                   07/274,288                   12/04/90
4,975,510                   07/270,131                   12/04/90
4,975,511                   07/432,643                   12/04/90
4,975,521                   07/509,165                   12/04/90
4,975,524                   07/414,996                   12/04/90
4,975,534                   07/373,504                   12/04/90
4,975,535                   07/341,950                   12/04/90
4,975,539                   07/401,008                   12/04/90
4,975,540                   07/300,072                   12/04/90
4,975,555                   07/419,048                   12/04/90
4,975,558                   07/411,171                   12/04/90
4,975,568                   07/307,288                   12/04/90
4,975,574                   07/461,333                   12/04/90
4,975,578                   07/339,211                   12/04/90
4,975,579                   07/263,008                   12/04/90
4,975,581                   07/369,217                   12/04/90
4,975,585                   07/348,508                   12/04/90
4,975,587                   07/387,809                   12/04/90
4,975,592                   07/321,606                   12/04/90
4,975,596                   07/275,514                   12/04/90
4,975,599                   07/385,629                   12/04/90
4,975,602                   07/483,688                   12/04/90
4,975,607                   07/376,847                   12/04/90
4,975,609                   07/364,935                   12/04/90
4,975,613                   07/420,880                   12/04/90
4,975,616                   07/233,627                   12/04/90
4,975,617                   06/910,816                   12/04/90
4,975,622                   07/292,594                   12/04/90
4,975,623                   07/195,449                   12/04/90
4,975,627                   07/232,417                   12/04/90
4,975,630                   07/320,746                   12/04/90
4,975,637                   07/459,088                   12/04/90
4,975,638                   07/452,050                   12/04/90
4,975,652                   07/332,894                   12/04/90
4,975,653                   07/419,570                   12/04/90
4,975,657                   07/430,687                   12/04/90
4,975,663                   07/206,913                   12/04/90
4,975,672                   07/443,297                   12/04/90
4,975,682                   07/215,793                   12/04/90
4,975,683                   07/376,766                   12/04/90
4,975,684                   07/364,807                   12/04/90
4,975,689                   07/283,132                   12/04/90
4,975,691                   07/063,179                   12/04/90
4,975,706                   07/432,281                   12/04/90
4,975,709                   07/408,721                   12/04/90
4,975,712                   07/299,481                   12/04/90
4,975,720                   07/419,945                   12/04/90
4,975,723                   07/473,896                   12/04/90
4,975,740                   07/420,813                   12/04/90
4,975,759                   07/318,887                   12/04/90
4,975,767                   07/342,996                   12/04/90
4,975,783                   07/373,274                   12/04/90
4,975,785                   07/389,453                   12/04/90
4,975,791                   07/171,755                   12/04/90
4,975,802                   07/357,319                   12/04/90
4,975,806                   07/353,396                   12/04/90
4,975,809                   07/239,621                   12/04/90
4,975,817                   07/487,666                   12/04/90
4,975,819                   07/385,109                   12/04/90
4,975,822                   07/354,448                   12/04/90
4,975,826                   07/273,485                   12/04/90
4,975,842                   07/231,298                   12/04/90
4,975,850                   07/431,544                   12/04/90
4,975,851                   07/239,817                   12/04/90
4,975,856                   07/208,783                   12/04/90
4,975,863                   07/209,092                   12/04/90
4,975,865                   07/359,871                   12/04/90
4,975,871                   07/216,184                   12/04/90
4,975,887                   07/002,832                   12/04/90
4,975,893                   07/435,718                   12/04/90
4,975,908                   07/281,287                   12/04/90
4,975,916                   07/225,106                   12/04/90
4,975,925                   07/429,978                   12/04/90
4,975,932                   07/290,198                   12/04/90
4,975,933                   07/498,409                   12/04/90
4,975,938                   07/482,937                   12/04/90
4,975,948                   07/423,548                   12/04/90
4,975,949                   07/366,763                   12/04/90
4,975,964                   07/371,914                   12/04/90

                   PATENTS WHICH EXPIRED ON December 6, 1998
                    DUE TO FAILURE TO PAY MAINTENANCE FEES

5,369,807                   08/032,687                   12/06/94
5,369,808                   08/071,062                   12/06/94
5,369,813                   08/164,929                   12/06/94
5,369,815                   08/135,781                   12/06/94
5,369,816                   08/171,226                   12/06/94
5,369,819                   08/197,698                   12/06/94
5,369,827                   07/484,219                   12/06/94
5,369,835                   08/098,098                   12/06/94
5,369,836                   08/102,293                   12/06/94
5,369,839                   08/023,848                   12/06/94
5,369,840                   08/065,946                   12/06/94
5,369,841                   08/065,986                   12/06/94
5,369,842                   08/109,958                   12/06/94
5,369,854                   08/084,950                   12/06/94
5,369,860                   08/083,345                   12/06/94
5,369,864                   08/068,221                   12/06/94
5,369,873                   07/965,247                   12/06/94
5,369,880                   08/057,374                   12/06/94
5,369,886                   08/181,012                   12/06/94
5,369,887                   08/166,202                   12/06/94
5,369,893                   08/224,506                   12/06/94
5,369,902                   08/127,235                   12/06/94
5,369,905                   08/192,338                   12/06/94
5,369,907                   08/184,938                   12/06/94
5,369,908                   08/192,249                   12/06/94
5,369,910                   08/116,739                   12/06/94
5,369,913                   08/166,046                   12/06/94
5,369,917                   08/030,108                   12/06/94
5,369,919                   07/927,668                   12/06/94
5,369,920                   08/118,733                   12/06/94
5,369,921                   07/933,077                   12/06/94
5,369,924                   08/056,295                   12/06/94
5,369,925                   08/069,426                   12/06/94
5,369,946                   08/015,823                   12/06/94
5,369,947                   08/120,630                   12/06/94
5,369,948                   08/132,093                   12/06/94
5,369,949                   08/156,061                   12/06/94
5,369,950                   08/104,672                   12/06/94
5,369,953                   08/247,611                   12/06/94
5,369,961                   07/965,355                   12/06/94
5,369,964                   08/038,386                   12/06/94
5,369,975                   07/917,118                   12/06/94
5,369,983                   07/870,408                   12/06/94
5,369,991                   08/139,558                   12/06/94
5,369,992                   08/016,328                   12/06/94
5,369,996                   07/958,728                   12/06/94
5,369,999                   08/025,678                   12/06/94
5,370,010                   08/046,420                   12/06/94
5,370,012                   08/027,340                   12/06/94
5,370,019                   08/179,326                   12/06/94
5,370,020                   08/083,628                   12/06/94
5,370,022                   08/067,471                   12/06/94
5,370,028                   08/237,231                   12/06/94
5,370,030                   08/185,374                   12/06/94
5,370,039                   08/035,734                   12/06/94
5,370,042                   08/200,926                   12/06/94
5,370,056                   08/000,362                   12/06/94
5,370,057                   08/181,912                   12/06/94
5,370,062                   08/122,686                   12/06/94
5,370,063                   08/024,653                   12/06/94
5,370,067                   08/191,642                   12/06/94
5,370,069                   08/025,259                   12/06/94
5,370,070                   07/959,769                   12/06/94
5,370,081                   08/168,653                   12/06/94
5,370,104                   08/023,127                   12/06/94
5,370,105                   08/071,056                   12/06/94
5,370,120                   08/150,989                   12/06/94
5,370,130                   08/101,225                   12/06/94
5,370,138                   08/109,348                   12/06/94
5,370,144                   08/248,221                   12/06/94
5,370,146                   08/032,875                   12/06/94
5,370,147                   08/168,436                   12/06/94
5,370,155                   08/144,335                   12/06/94
5,370,157                   08/121,383                   12/06/94
5,370,164                   08/126,692                   12/06/94
5,370,176                   08/174,806                   12/06/94
5,370,188                   08/084,032                   12/06/94
5,370,189                   08/044,728                   12/06/94
5,370,191                   08/020,287                   12/06/94
5,370,192                   08/192,356                   12/06/94
5,370,197                   07/942,945                   12/06/94
5,370,201                   08/114,987                   12/06/94
5,370,203                   08/010,271                   12/06/94
5,370,211                   08/070,841                   12/06/94
5,370,218                   08/123,379                   12/06/94
5,370,219                   08/177,525                   12/06/94
5,370,220                   08/135,396                   12/06/94
5,370,222                   08/062,125                   12/06/94
5,370,223                   08/141,345                   12/06/94
5,370,228                   07/888,179                   12/06/94
5,370,230                   07/976,867                   12/06/94
5,370,231                   08/069,363                   12/06/94
5,370,232                   08/075,685                   12/06/94
5,370,233                   08/189,653                   12/06/94
5,370,236                   08/076,205                   12/06/94
5,370,238                   07/989,546                   12/06/94
5,370,240                   08/103,976                   12/06/94
5,370,242                   08/137,750                   12/06/94
5,370,243                   08/074,938                   12/06/94
5,370,246                   07/926,499                   12/06/94
5,370,252                   07/700,127                   12/06/94
5,370,253                   08/225,960                   12/06/94
5,370,256                   07/494,275                   12/06/94
5,370,261                   08/120,515                   12/06/94
5,370,263                   08/172,159                   12/06/94
5,370,264                   08/173,893                   12/06/94
5,370,265                   08/107,785                   12/06/94
5,370,274                   08/124,109                   12/06/94
5,370,277                   08/084,920                   12/06/94
5,370,278                   08/101,405                   12/06/94
5,370,279                   08/205,162                   12/06/94
5,370,280                   08/165,818                   12/06/94
5,370,285                   08/167,174                   12/06/94
5,370,286                   08/022,992                   12/06/94
5,370,287                   07/980,717                   12/06/94
5,370,298                   08/124,634                   12/06/94
5,370,306                   08/075,501                   12/06/94
5,370,308                   08/065,165                   12/06/94
5,370,310                   08/196,513                   12/06/94
5,370,311                   08/225,575                   12/06/94
5,370,313                   08/179,385                   12/06/94
5,370,318                   08/181,473                   12/06/94
5,370,323                   08/082,046                   12/06/94
5,370,325                   07/983,098                   12/06/94
5,370,332                   08/154,637                   12/06/94
5,370,343                   08/026,373                   12/06/94
5,370,351                   08/073,332                   12/06/94
5,370,353                   08/103,088                   12/06/94
5,370,354                   08/221,477                   12/06/94
5,370,357                   08/162,721                   12/06/94
5,370,358                   07/923,547                   12/06/94
5,370,374                   08/145,026                   12/06/94
5,370,377                   08/123,136                   12/06/94
5,370,385                   08/142,001                   12/06/94
5,370,386                   08/057,047                   12/06/94
5,370,387                   08/075,831                   12/06/94
5,370,388                   08/105,771                   12/06/94
5,370,391                   08/231,499                   12/06/94
5,370,393                   08/225,340                   12/06/94
5,370,395                   08/160,959                   12/06/94
5,370,396                   08/138,957                   12/06/94
5,370,407                   08/038,823                   12/06/94
5,370,408                   08/159,487                   12/06/94
5,370,409                   08/047,140                   12/06/94
5,370,411                   07/959,912                   12/06/94
5,370,413                   08/134,435                   12/06/94
5,370,419                   08/146,759                   12/06/94
5,370,421                   08/243,272                   12/06/94
5,370,427                   08/179,286                   12/06/94
5,370,430                   08/203,395                   12/06/94
5,370,431                   08/225,954                   12/06/94
5,370,432                   08/219,933                   12/06/94
5,370,433                   08/151,970                   12/06/94
5,370,446                   08/164,529                   12/06/94
5,370,452                   08/082,485                   12/06/94
5,370,453                   07/995,967                   12/06/94
5,370,454                   08/003,478                   12/06/94
5,370,458                   07/595,067                   12/06/94
5,370,460                   08/169,369                   12/06/94
5,370,468                   08/215,935                   12/06/94
5,370,472                   07/939,518                   12/06/94
5,370,474                   08/052,466                   12/06/94
5,370,481                   08/116,997                   12/06/94
5,370,490                   08/009,780                   12/06/94
5,370,493                   08/100,856                   12/06/94
5,370,494                   08/094,426                   12/06/94
5,370,495                   08/022,996                   12/06/94
5,370,500                   08/212,049                   12/06/94
5,370,504                   08/135,296                   12/06/94
5,370,505                   08/073,770                   12/06/94
5,370,510                   08/147,107                   12/06/94
5,370,523                   08/106,702                   12/06/94
5,370,525                   08/035,071                   12/06/94
5,370,528                   07/924,206                   12/06/94
5,370,536                   08/044,742                   12/06/94
5,370,538                   08/014,874                   12/06/94
5,370,539                   07/852,012                   12/06/94
5,370,542                   08/105,367                   12/06/94
5,370,549                   08/136,199                   12/06/94
5,370,550                   08/166,127                   12/06/94
5,370,551                   08/179,005                   12/06/94
5,370,569                   08/194,396                   12/06/94
5,370,570                   08/053,885                   12/06/94
5,370,571                   08/004,377                   12/06/94
5,370,572                   08/192,576                   12/06/94
5,370,575                   08/177,908                   12/06/94
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