Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 10/09/98 Patent Serial Number Filing Issue Granted Number Number Date Date Date 4,539,341 06/582,348 02/22/84 09/03/85 10/15/98 4,724,468 06/912,925 09/29/86 02/09/88 10/09/98 4,877,417 07/164,066 03/03/88 10/31/89 10/09/98 4,897,958 07/261,722 10/24/88 02/06/90 10/09/98 5,203,477 07/721,343 07/01/91 04/20/93 10/14/98 5,318,899 07/483,229 02/20/90 06/07/94 10/13/98 5,326,085 08/024,513 03/01/93 07/05/94 10/13/98