Patent Reinstated Due to the Acceptance of a Late Maintenance Fee From 08/20/99 Patent Serial Filing Issue Granted Number Number Date Date Date 4,490,131 06/383,710 06/01/82 12/25/84 08/20/99 4,520,811 06/584,326 02/28/84 06/04/85 08/26/99 4,539,640 06/407,275 08/10/82 09/03/85 08/26/99 4,637,403 06/744,539 06/14/85 01/20/87 08/24/99 4,845,484 07/107,355 10/09/87 07/04/89 08/20/99 4,849,427 07/159,841 02/24/88 07/18/89 08/24/99 4,858,584 07/249,675 09/27/88 08/22/89 08/24/99 4,861,022 07/228,481 08/05/88 08/29/89 08/23/99 4,879,760 07/060,741 06/10/87 11/07/89 08/23/99 4,880,622 06/865,504 05/20/86 11/14/89 08/24/99 4,928,101 07/394,393 08/15/89 05/22/90 08/23/99 4,979,269 07/388,946 08/03/89 12/25/90 08/24/99 4,987,425 07/271,037 11/14/88 01/22/91 08/24/99 5,000,812 07/386,214 07/28/89 03/19/91 08/24/99 5,004,270 07/395,501 08/17/89 04/02/91 08/24/99 5,004,553 07/421,751 10/16/89 04/02/91 08/23/99 5,230,527 07/872,109 04/22/92 07/27/93 08/24/99 5,277,136 07/763,135 09/20/91 01/11/94 08/20/99 5,301,637 07/956,269 10/05/92 04/12/94 08/25/99 5,307,587 08/052,646 04/26/93 05/03/94 08/23/99 5,314,308 07/989,583 12/11/92 05/24/94 08/23/99 5,330,337 07/967,345 10/27/92 07/19/94 08/26/99 5,337,576 07/997,316 12/28/92 08/16/94 08/23/99 5,337,652 07/915,438 07/17/92 08/16/94 08/26/99 5,339,508 07/968,956 10/30/92 08/23/94 08/26/99 5,339,555 08/092,989 07/19/93 08/23/94 08/23/99 5,345,902 07/962,263 10/16/92 09/13/94 08/23/99 5,353,092 08/137,458 10/15/93 10/04/94 08/24/99 5,354,285 08/113,354 08/30/93 10/11/94 08/23/99 5,363,858 08/057,607 05/05/93 11/15/94 08/26/99 5,367,682 07/692,619 04/29/91 11/22/94 08/25/99 5,385,672 08/135,223 10/13/93 01/31/95 08/23/99 5,387,919 08/068,728 05/26/93 02/07/95 08/21/99 5,390,202 07/995,852 12/23/92 02/14/95 08/25/99 5,408,865 08/106,555 08/16/93 04/25/95 08/26/99 5,421,867 08/136,821 10/18/93 06/06/95 08/23/99