Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 4/25/97 Patent Number Serial Number Filing Date Issue Date Granted Date Re. 32,734 06/920,227 10/16/86 08/23/88 04/25/97 4,426,021 06/318,600 11/05/81 01/17/84 04/25/97 4,771,689 06/779,474 09/25/85 09/20/88 04/29/97 4,780,544 06/881,415 07/02/86 10/25/88 04/25/97 4,788,253 07/000,627 04/17/87 11/29/88 04/25/97 4,799,607 06/920,030 10/16/86 01/24/89 04/25/97 4,801,803 07/027,197 03/17/87 01/31/89 04/30/97 4,816,646 07/170,903 03/21/88 03/28/89 04/30/97 4,957,230 07/410,828 09/22/89 09/18/90 04/25/97 4,982,907 07/187,286 04/28/88 01/08/91 04/25/97 4,998,737 07/398,172 08/23/89 03/12/91 04/29/97 5,002,280 07/502,780 04/02/90 03/26/91 04/29/97 5,002,633 07/473,230 01/31/90 03/26/91 04/25/97 5,003,078 07/352,327 05/16/89 03/26/91 04/25/97 5,082,626 07/230,303 08/08/88 01/21/92 04/30/97 5,124,892 07/624,024 12/07/90 06/23/92 04/25/97 5,133,123 07/584,733 09/19/90 07/28/92 04/25/97 5,133,428 07/680,524 04/04/91 07/28/92 04/28/97 Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 5/02/97 Patent Number Serial Number Filing Date Issue Date Granted Date 4,523,913 06/545,152 10/25/83 06/18/85 05/07/97 4,619,486 06/618,492 06/08/84 10/28/86 05/09/97 4,744,069 06/829,066 02/13/86 05/10/88 05/05/97 4,881,280 07/279,431 12/02/88 11/21/89 05/05/97 5,117,834 07/563,106 08/06/90 06/02/92 05/07/97 5,130,208 07/696,613 05/07/91 07/14/92 05/07/97 5,159,654 07/782,557 10/25/91 10/27/92 05/09/97