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

4,608,043     06/623,066      08/26/86       06/22/84            07/31/95
4,942,396     07/347,860      07/17/90       05/04/89            07/31/95

              Patents Reinstated Due to The Acceptance of a Late
                         Maintenance Fee From 10/13/95

Patent No.    Serial No.   Filing Date     Issue Date        Granted Date

4,393,357     06/231,292      02/04/81       07/12/83            10/13/95
4,578,828     06/672,998      11/19/84       04/01/86            10/13/95
4,606,431     06/591,200      03/19/84       08/19/86            10/13/95
4,677,366     06/862,593      05/12/86       06/30/87            10/13/95
4,876,335     07/067,798      06/30/87       10/24/89            10/13/95
4,941,789     07/151,910      02/03/88       07/17/90            10/16/95
4,989,560     07/416,496      10/03/89       02/05/91            10/13/95
5,005,538     07/547,810      07/03/90       04/09/91            10/16/95
5,009,791     07/395,897      08/18/89       04/23/91            10/13/95
5,033,744     07/477,626      02/09/90       07/23/91            10/18/95