Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 06/12/98 Patent Serial Filing Issue Granted Number Number Date Date Date 4,821,809 06/632,279 07/20/84 04/18/89 06/12/98 4,834,523 07/027,009 03/17/87 05/30/89 06/12/98 4,866,627 07/062,663 06/16/87 09/12/89 06/12/98 4,871,337 07/078,415 07/27/87 10/03/89 06/12/98 4,896,689 07/270,315 11/14/88 01/30/90 06/12/98 5,109,103 07/667,214 01/22/91 04/28/92 06/17/98 5,188,314 07/681,931 04/08/91 02/23/93 06/12/98 5,227,791 07/804,582 12/10/91 07/13/93 06/16/98 5,252,822 07/951,907 09/28/92 10/12/93 06/17/98 5,259,381 07/377,722 07/10/89 11/09/93 06/17/98 5,271,141 07/819,112 01/10/92 12/21/93 06/12/98 5,286,860 07/975,409 11/12/92 02/15/94 06/12/98