Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 07/03/98 Patent Serial Filing Issue Granted Number Number Date Date Date 4,806,099 07/115,198 11/02/87 02/21/89 07/06/98 5,240,668 07/566,034 08/13/90 08/31/93 07/06/98 5,277,111 07/878,435 05/04/92 01/11/94 07/06/98 5,279,828 08/021,564 02/24/93 01/18/94 07/06/98 5,280,398 08/008,214 01/25/93 01/18/94 07/06/98