NOTIFICATION OF ACCEPTANCE OF DELAYED PAYMENT OF MAINTENANCE FEE
                        (35 U.S.C. 41(c); 37 CFR 1.378)

   The patent(s) listed below are considered as not having expired but are
subject to the conditions set forth in 35 U.S.C. 41(c)(2), in view of the
Petition to Accept Late Payment of the maintenance fees which has been GRANTED
BY THE COMMISSIONER OF PATENTS AND TRADEMARKS, as provided for under 35 U.S.C.
41(c)(1) and 37 CFR 1.378.

                                                Application     Delayed Payment
Patent No.       Serial No.     Patent Date     Filing Date     Acceptance Date

Re. 32,622       06/880,721        03/15/88        07/01/86        03/16/94
(4,546,810)     (06/531,082)      (10/15/85)      (08/11/83)
Re. 33,430       07/179,246        08/07/90        04/07/88        03/04/94
(4,468,817)     (06/542,457)      (09/04/84)      (10/17/83)
Re. 33,447       07/207,291        11/20/90        06/15/88        10/11/94
(4,749,097)     (07/082,791)      (06/07/88)      (08/06/87)
Re. 33,506       07/382,525        12/25/90        07/19/89        08/25/94
4,805,164        07/094,113        02/14/89        09/08/87
Re. 33,702       07/529,658        10/01/91        05/29/90        06/01/94
(4,848,074)     (07/251,234)      (07/18/89)      (09/30/88)
Re. 33,930       07/628,717        05/19/92        12/10/90        07/28/94
(4,792,130)     (07/002,946)      (12/20/88)      (01/13/87)
Re. 34,270       07/783,831        06/01/93        10/29/91        01/18/95
(4,899,237)     (07/366,366)      (02/06/90)      (06/15/89)
Re. 34,379       07/744,112        09/14/93        08/09/91        08/02/94
(4,928,283)     (07/160,657)      (05/22/90)      (02/26/88)
Re. 34,429       07/817,733        11/02/93        01/07/92        03/29/94
(4,893,333)     (07/323,282)      (01/09/90)      (03/14/89)
Re. 34,571       07/853,998        03/29/94        03/19/92        06/10/94
(4,909,996)     (07/293,439)      (03/20/90)      (01/04/89)
4,337,374        06/228,242        06/29/82        01/26/81        09/23/94
4,345,199        06/241,454        08/17/82        03/06/81        01/17/95
4,392,911        06/377,336        07/12/83        05/12/82        01/09/95
4,399,947        06/312,093        08/23/83        10/16/81        04/20/94
4,404,059        06/382,407        09/13/83        05/26/82        05/04/94
4,405,159        06/274,069        09/20/83        06/16/81        04/13/94
4,420,318        06/315,858        12/13/83        10/28/81        04/20/94
4,443,006        06/301,188        04/17/84        09/11/81        03/17/94
4,444,031        06/292,667        04/24/84        08/13/81        05/25/94
4,446,585        06/341,731        05/08/84        01/22/82        09/09/94
4,453,424        06/445,002        06/12/84        11/29/82        06/28/94
4,459,135        06/419,867        07/10/84        09/20/82        06/16/94
4,464,359        06/252,926        08/07/84        04/10/81        08/26/94
4,465,947        06/513,174        08/14/84        07/13/83        01/04/94
4,475,740        06/258,149        10/09/84        04/27/81        11/10/94
4,478,981        06/360,525        10/23/84        03/22/82        12/06/94
4,483,188        06/470,020        11/20/84        04/18/83        06/13/94
4,484,038        06/445,694        11/20/84        12/01/82        04/15/94
4,486,169        06/496,423        12/04/84        05/20/83        08/04/94
4,487,061        06/450,597        12/11/84        12/17/82        06/16/94
4,489,593        06/416,164        12/25/84        09/09/92        02/14/94
4,490,900        06/343,845        01/01/85        01/29/82        06/16/94
4,497,688        06/477,155        02/05/85        03/21/83        04/21/94
4,498,238        06/429,949        02/12/85        09/30/82        09/20/94
4,499,777        06/471,769        02/19/85        03/03/83        06/30/94
4,499,885        06/527,874        02/19/85        08/30/83        01/17/95
4,500,989        06/404,039        02/19/85        08/02/82        11/28/94
4,502,461        06/483,524        03/05/85        04/11/83        04/15/94
4,503,383        06/337,836        03/05/85        01/07/82        01/29/94
4,504,320        06/535,479        03/12/85        09/26/83        06/21/94
4,504,920        06/292,168        03/05/85        08/12/81        05/26/94
4,505,254        06/479,994        03/19/85        03/29/83        07/20/94
4,506,058        06/589,429        03/19/85        03/14/84        08/17/94
4,506,318        06/487,817        03/19/85        04/22/83        05/12/94
4,506,716        06/436,420        03/26/85        10/25/82        08/03/94
4,507,716        06/482,196        03/26/85        04/05/83        06/27/94
4,508,110        06/531,847        04/02/85        09/14/83        09/13/93
4,510,697        06/459,366        04/16/85        01/19/83        04/29/94
4,510,769        07/597,073        04/16/85        04/05/84        07/28/94
4,510,772        06/476,051        04/16/85        03/17/83        10/11/94
4,512,763        06/259,971        04/23/85        05/04/81        05/03/94
4,516,393        06/529,344        05/14/85        09/06/83        06/13/94
4,516,482        06/603,417        05/14/85        04/24/84        08/29/94
4,517,082        06/432,009        05/14/85        09/30/82        07/21/94
4,518,217        06/482,962        05/21/85        04/08/83        04/15/94
4,519,305        06/576,627        05/28/85        02/03/84        06/27/94
4,520,896        06/596,835        06/04/85        04/04/84        05/25/94
4,521,401        06/580,933        06/04/85        02/16/84        05/12/94
4,522,413        06/626,193        06/11/85        06/29/84        10/17/94
4,522,455        06/540,679        06/11/85        10/11/83        09/15/94
4,522,504        06/559,254        06/11/85        12/08/83        03/29/94
4,523,039        06/563,013        06/11/85        12/19/83        05/12/94
4,523,441        06/554,304        06/18/85        11/22/83        03/17/94
4,524,437        06/536,867        06/18/85        09/29/83        11/23/94
4,525,168        06/574,323        06/25/85        01/27/84        06/03/94
4,525,168        05/574,323        06/25/85        01/27/84        06/03/94
4,525,168        06/574,323        06/25/85        01/27/84        06/03/94
4,525,959        06/459,918        07/02/85        01/21/83        06/13/94
4,526,542        06/577,211        07/02/85        02/06/84        06/16/94
4,527,096        06/578,236        07/02/85        02/08/84        03/29/94
4,527,826        06/522,745        07/09/85        08/12/83        04/28/94
4,530,342        06/540,633        07/23/85        10/11/83        06/27/94
4,530,758        06/578,990        07/23/85        02/13/84        05/24/94
4,530,947        06/603,396        07/23/85        04/24/84        04/28/94
4,533,284        06/564,353        08/06/85        12/22/83        10/06/94
4,533,724        06/451,741        08/06/85        09/17/82        11/15/93
4,534,089        06/483,166        08/13/85        04/08/83        09/23/94
4,535,954        06/617,103        08/20/85        06/04/84        05/12/94
4,536,135        06/424,206        08/20/85        09/27/82        04/08/94
4,536,142        06/549,896        08/20/85        11/09/83        04/11/94
4,538,052        06/403,389        08/27/85        07/30/82        05/12/94
4,538,213        06/587,230        08/27/85        03/07/84        06/02/94
4,538,833        06/559,487        09/03/85        12/08/83        11/30/94
4,539,313        06/605,004        09/03/85        04/27/84        08/26/94
4,539,473        06/625,619        09/03/85        06/28/84        07/21/94
4,539,560        06/448,827        09/03/85        12/10/82        05/25/94
4,539,856        06/535,380        09/10/85        09/23/83        04/06/94
4,540,573        06/514,375        09/10/85        07/14/83        12/17/93
4,541,532        06/497,897        09/17/85        05/25/83        04/21/94
4,542,256        06/604,786        09/17/85        04/27/84        04/11/94
4,542,766        06/599,399        09/24/85        04/12/84        12/17/93
4,543,164        06/485,006        09/24/85        04/14/83        05/20/94
4,543,395        06/621,314        09/24/85        06/15/84        09/02/94
4,544,157        06/486,126        10/01/85        04/18/83        05/17/94
4,544,518        06/574,100        10/01/85        12/21/83        06/27/94
4,544,546        06/510,506        10/01/85        07/05/83        05/26/94
4,546,680        06/353,860        10/15/85        03/02/82        09/23/94
4,551,388        06/508,298        11/05/85        06/27/83        04/15/94
4,552,532        06/560,199        11/12/85        12/12/83        05/25/94
4,552,713        06/582,054        11/12/85        02/21/84        11/21/94
4,553,551        06/466,919        11/19/85        02/16/83        05/09/94
4,553,710        06/523,434        11/19/85        08/16/83        03/29/94
4,554,475        06/617,240        11/19/85        06/05/84        06/03/94
4,554,500        06/480,746        11/19/85        03/31/83        03/17/94
4,556,002        06/489,117        12/03/85        04/27/83        12/06/94
4,556,114        06/480,251        12/03/85        03/30/83        06/16/94
4,559,223        06/677,905        12/17/85        12/06/84        04/21/94
4,561,273        06/612,451        12/31/85        05/21/84        07/21/94
4,562,853        06/260,358        01/07/86        05/04/81        06/13/94
4,562,974        06/522,301        01/07/86        07/20/83        06/16/94
4,563,166        06/592,865        01/07/86        01/07/86        09/20/94
4,563,332        06/489,030        01/07/86        04/27/83        12/27/94
4,563,391        06/552,267        01/07/86        11/16/83        09/20/94
4,563,826        06/664,256        01/14/86        10/24/84        05/25/94
4,564,747        06/537,995        01/14/86        09/30/83        03/14/94
4,566,137        06/572,529        01/28/86        01/20/84        05/12/94
4,566,183        06/672,444        01/28/86        11/15/84        04/15/94
4,566,655        06/670,022        01/28/86        11/09/84        05/06/94
4,566,763        06/574,902        01/28/86        01/30/84        05/03/94
4,566,873        06/594,297        01/28/86        03/28/84        04/21/94
4,567,008        06/526,494        01/28/86        08/25/83        05/06/94
4,567,688        06/652,310        02/04/86        09/19/84        08/15/94
4,568,847        06/522,049        02/04/86        08/10/83        08/17/94
4,569,136        06/571,840        02/11/86        01/19/84        08/15/94
4,570,642        06/535,318        02/18/86        09/23/83        07/20/94
4,570,940        06/603,706        02/18/86        04/25/84        12/13/94
4,572,156        06/654,225        02/25/86        09/25/84        05/25/94
4,573,336        06/615,344        03/04/86        05/30/84        08/15/94
4,573,642        06/607,648        03/04/86        05/07/84        04/06/94
4,573,683        06/677,094        03/04/86        11/30/84        11/28/94
4,573,854        06/565,164        03/04/86        12/23/83        04/11/94
4,576,028        06/646,018        03/18/86        08/31/84        04/20/94
4,576,520        06/659,601        03/18/86        10/11/84        05/12/94
4,579,131        06/748,752        04/01/86        06/26/85        07/20/94
4,579,381        06/576,744        04/01/86        02/03/84        06/28/94
4,579,554        06/575,034        04/01/86        01/30/84        07/21/94
4,579,658        06/504,971        04/01/86        06/16/83        08/31/94
4,580,898        06/615,645        04/08/86        05/31/84        07/13/94
4,583,373        06/654,911        04/22/86        09/27/84        07/21/94
4,584,587        06/528,898        04/22/86        09/02/83        06/27/94
4,585,534        06/489,783        04/29/86        04/29/83        08/17/94
4,588,501        06/526,565        05/13/86        08/25/83        07/13/94
4,589,398        06/583,694        05/20/86        02/27/84        09/21/94
4,590,730        06/722,081        05/27/86        04/10/85        08/25/94
4,591,155        06/708,412        05/27/86        03/05/85        08/03/94
4,591,570        06/463,188        05/27/86        02/02/83        08/05/94
4,592,089        06/523,449        05/27/86        08/15/83        08/29/94
4,592,281        06/402,913        06/03/86        07/29/82        12/05/94
4,593,985        06/668,346        06/10/86        11/05/84        08/31/94
4,594,229        06/238,234        06/10/86        02/25/81        01/13/95
4,596,959        06/674,200        06/24/86        11/23/84        10/28/94
4,598,367        06/551,130        07/01/86        11/09/83        12/30/94
4,598,910        06/720,253        07/08/86        04/05/85        09/29/94
4,599,136        06/657,277        07/08/86        10/03/84        11/17/94
4,599,520        06/575,612        07/08/86        01/31/84        12/05/94
4,600,067        06/635,744        07/15/86        11/29/83        11/28/94
4,600,631        06/605,916        07/15/86        05/01/84        08/09/94
4,600,837        06/557,491        07/15/86        12/01/83        11/17/94
4,601,913        06/814,581        07/22/86        12/27/85        11/17/94
4,603,439        06/679,620        08/05/86        12/10/84        09/16/94
4,604,762        06/234,116        08/12/86        02/13/81        09/29/94
4,605,140        06/773,992        08/12/86        09/09/85        11/03/94
4,605,870        06/478,613        08/12/86        03/25/83        12/05/94
4,605,883        06/345,972        08/12/86        02/05/82        12/27/94
4,606,324        06/687,054        08/19/86        12/28/84        11/30/94
4,606,677        06/550,565        08/19/86        11/10/83        04/22/94
4,607,857        06/771,707        08/26/86        09/03/85        06/27/94
4,650,193        06/680,085        03/17/87        12/10/84        10/27/94
4,664,924        06/765,702        05/12/87        08/13/85        04/11/94
4,693,696        06/822,787        09/15/87        01/27/86        09/26/94
4,700,286        06/924,933        10/13/87        10/16/86        03/03/94
4,700,999        06/894,472        10/20/87        08/04/86        06/08/94
4,722,197        06/746,174        02/02/88        06/18/85        04/04/94
4,731,775        06/803,722        03/15/88        12/02/85        04/15/94
4,733,481        06/844,112        03/29/88        05/19/86        05/17/94
4,738,328        07/000,592        04/19/88        01/06/87        05/05/94
4,740,937        06/814,676        04/26/88        12/30/85        06/13/94
4,742,505        06/799,811        05/03/88        11/20/85        05/25/94
4,744,227        07/065,517        05/17/88        06/23/87        05/12/94
4,744,524        07/032,538        05/17/88        04/01/87        06/27/94
4,745,657        06/917,890        05/24/88        10/14/86        04/22/94
4,750,213        06/872,627        06/07/88        06/09/86        08/09/94
4,752,717        06/866,905        06/21/88        05/27/86        05/04/94
4,753,456        07/060,964        06/28/88        06/15/87        02/14/94
4,756,524        07/073,706        07/12/88        07/15/87        04/20/94
4,758,232        07/094,337        07/19/88        09/08/87        06/17/94
4,763,379        07/028,653        08/16/88        03/20/87        05/09/94
4,763,671        06/858,891        08/16/88        04/25/86        08/29/94
4,766,433        06/628,234        08/23/88        07/06/84        09/16/94
4,766,675        07/034,033        08/30/88        04/01/87        09/20/94
4,768,784        07/021,204        09/06/88        03/03/87        10/11/94
4,772,841        07/011,914        09/20/88        02/05/87        03/17/94
4,776,195        06/877,966        10/11/88        06/24/86        09/29/94
4,776,334        07/021,387        10/11/88        03/03/87        08/29/94
4,776,583        06/591,817        10/11/88        03/21/84        12/05/94
4,777,931        07/070,376        10/18/88        07/07/87        03/29/94
4,778,193        07/001,052        10/18/88        01/07/87        11/28/94
4,779,697        06/873,193        10/25/88        06/11/86        05/12/94
4,780,044        07/151,846        10/25/88        02/03/88        04/15/94
4,780,141        06/945,632        10/25/88        12/23/86        05/09/94
4,782,327        06/688,444        11/01/88        01/02/85        11/29/94
4,783,673        06/896,608        11/08/88        08/13/86        12/13/94
4,783,796        06/803,126        11/08/88        11/29/85        03/30/94
4,784,303        06/929,749        11/15/88        11/12/86        07/28/94
4,786,829        07/017,751        11/22/88        02/24/87        10/11/94
4,789,270        07/086,883        12/06/88        08/19/87        04/21/94
4,795,204        07/029,046        01/03/89        03/23/87        04/07/94
4,795,256        07/023,567        01/03/89        03/09/87        04/21/94
4,795,447        07/070,079        01/03/89        07/06/87        12/08/94
4,795,494        07/167,845        01/03/89        03/14/88        01/18/95
4,795,652        06/941,448        01/03/89        12/15/86        11/28/94
4,796,555        07/105,526        01/10/89        09/29/87        04/28/94
4,796,820        06/764,389        01/10/89        08/12/85        05/23/94
4,798,959        07/001,330        01/17/89        01/02/87        01/13/95
4,799,264        07/101,395        01/17/89        09/28/87        11/21/94
4,800,939        07/070,049        01/31/89        07/06/87        07/21/94
4,801,381        06/874,549        01/31/89        06/16/86        05/25/94
4,805,015        06/903,615        02/14/88        09/04/86        10/06/94
4,807,707        07/112,300        02/28/89        10/26/87        03/29/94
4,815,263        07/197,025        03/28/89        05/20/88        12/06/94
4,815,676        07/150,915        03/28/89        02/01/88        05/12/94
4,817,328        06/943,684        04/04/89        12/01/86        05/06/94
4,817,488        07/207,167        04/04/89        06/15/88        05/25/94
4,817,874        06/794,234        04/04/89        10/31/85        05/17/94
4,819,009        07/068,420        04/04/89        07/01/87        09/16/94
4,819,372        07/212,103        04/11/89        06/21/88        06/16/94
4,820,165        07/209,334        04/11/89        06/20/88        05/08/94
4,820,290        07/096,488        04/11/89        09/15/87        09/16/94
4,821,020        06/545,443        04/11/89        10/26/83        07/21/94
4,821,358        07/140,752        04/18/89        01/04/88        04/15/94
4,821,451        07/080,909        04/18/89        08/03/87        05/12/94
4,821,933        07/182,859        04/18/89        04/18/88        08/25/94
4,822,006        07/080,346        04/18/89        07/31/87        11/23/94
4,825,708        07/109,392        05/02/89        10/19/87        08/26/94
4,829,284        07/228,875        05/09/89        08/05/88        11/15/93
4,829,792        07/077,889        05/16/89        07/27/87        05/25/94
4,830,371        07/030,366        05/16/89        03/26/87        07/20/94
4,831,393        07/131,828        05/16/89        12/11/87        11/17/94
4,832,210        07/155,915        05/23/89        02/16/88        05/12/94
4,832,651        07/022,760        05/23/89        03/06/87        09/23/94
4,833,048        07/175,782        05/23/89        03/31/88        05/20/94
4,833,641        07/043,549        05/23/89        04/28/87        06/16/94
4,833,897        06/369,239        05/30/89        04/16/82        06/09/94
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