Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 7/20/01 Patent Serial Filing Issue Granted Number Number Date Date Date 4,892,543 07/305,603 02/02/89 01/09/90 07/20/01 5,033,264 07/367,383 06/16/89 07/23/91 07/23/01 5,083,296 07/568,166 08/16/90 01/21/92 07/23/01 5,086,292 07/429,458 10/31/89 02/04/92 07/20/01 5,139,737 07/622,567 12/05/90 08/18/92 07/23/01 5,178,016 07/710,253 06/03/91 01/12/93 07/23/01 5,210,814 07/861,258 03/31/92 05/11/93 07/20/01 5,211,109 07/767,119 09/27/91 05/18/93 07/23/01 5,432,595 08/090,271 07/13/93 07/11/95 07/23/01 5,555,283 08/488,404 06/07/95 09/10/96 07/23/01 5,587,231 08/282,371 07/29/94 12/24/96 07/20/01 5,599,441 08/455,747 05/31/95 02/04/97 07/23/01 5,612,458 08/361,643 12/22/94 03/18/97 07/23/01 5,620,331 08/356,685 12/15/94 04/15/97 07/23/01 5,629,937 08/408,997 03/23/95 05/13/97 07/23/01