Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 8/21/98 Patent Serial Filing Issue Granted Number Number Date Date Date 4,580,629 06/706,951 02/28/85 04/08/86 08/24/98 4,690,213 06/825,338 02/03/86 09/01/87 08/24/98 4,739,547 07/096,100 09/11/87 04/26/88 08/21/98 4,806,918 07/042,544 04/24/87 02/21/89 08/21/98 4,817,043 07/213,026 06/28/88 03/28/89 08/25/98 4,874,952 07/187,367 04/28/88 10/17/89 08/25/98 4,898,197 07/120,942 11/16/87 02/06/90 08/21/98 4,906,484 07/146,845 01/22/88 03/06/90 08/21/98 5,129,045 07/677,315 03/29/91 07/07/92 08/25/98 5,175,223 07/665,851 03/07/91 12/29/92 08/27/98 5,176,520 07/510,141 04/17/90 01/05/93 08/24/98 5,179,205 07/687,147 04/18/91 01/12/93 08/27/98