Patent Reinstated Due to the Acceptance of a Late Maintenance Fee From 10/08/99 Patent Serial Filing Issue Granted Number Number Date Date Date 5,305,752 07/891,851 06/01/92 04/26/94 10/08/99 5,316,835 07/977,043 11/16/92 05/31/94 10/08/99 5,346,495 08/202,731 02/28/94 09/13/94 10/14/99 5,394,774 08/067,598 05/27/93 03/07/95 10/08/99 5,403,121 07/797,670 11/25/91 04/04/95 10/08/99