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 4,362,589 06/325,132 12/07/82 11/27/81 04/20/95 4,573,217 06/635,810 03/04/86 07/30/84 04/18/95 4,813,344 07/039,977 03/21/89 04/20/87 03/29/95 4,815,488 07/070,250 03/28/89 07/06/87 04/20/95 4,819,569 07/158,204 04/11/89 02/19/88 04/24/95 4,831,257 06/912,883 05/16/89 09/26/86 03/20/95 4,858,054 07/195,591 08/15/89 05/18/88 04/20/95 4,931,704 07/281,679 06/05/90 12/09/88 04/20/95 4,938,411 07/331,142 07/03/90 03/31/89 04/20/95 4,963,849 07/344,936 10/16/90 04/28/89 03/30/95 4,964,857 07/425,130 10/23/90 10/23/89 04/20/95 4,989,064 07/376,144 01/29/91 07/05/89 04/20/95