Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 10/03/97 Patent Serial Number Filing Issue Granted Number Number Date Date Date 4,518,703 06/447,477 12/06/82 05/21/85 10/03/97 4,626,346 06/827,867 02/10/86 12/02/86 10/06/97 4,798,590 06/554,617 11/22/83 01/17/89 10/07/97 Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 10/10/97 Patent Serial Number Filing Issue Granted Number Number Date Date Date 5,204,473 07/883,812 05/12/92 04/20/93 10/15/97 5,225,464 07/861,530 04/02/92 07/06/93 10/10/97