Patent Reinstated Due to the Acceptance of a Late Maintenance Fee From 12/24/99 Patent Serial Filing Issue Granted Number Number Date Date Date 4,586,711 06/493,170 05/10/83 05/06/86 12/30/99 4,596,263 06/557,839 12/05/83 06/24/86 12/30/99 4,923,272 07/252,088 10/03/88 05/08/90 12/30/99 4,947,225 07/073,591 07/15/87 08/07/90 12/30/99 4,953,900 07/520,021 05/07/90 09/04/90 12/28/99 4,968,478 07/480,100 02/14/90 11/06/90 12/28/99 4,992,788 07/416,119 10/02/89 02/12/91 12/28/99 4,998,916 07/461,049 01/04/90 03/12/91 12/28/99 5,031,183 07/488,935 03/05/90 07/09/91 12/28/99 5,032,117 07/303,454 01/30/89 07/16/91 12/29/99 5,052,861 07/509,481 04/16/90 10/01/91 12/30/99 5,352,053 08/087,257 07/08/93 10/04/94 12/30/99 5,380,991 08/152,129 11/16/93 01/10/95 12/30/99 5,389,375 08/065,117 05/21/93 02/14/95 12/28/99 5,405,400 08/132,296 10/05/93 04/11/95 12/28/99 5,405,401 08/132,300 10/05/93 04/11/95 12/30/99 5,431,199 08/159,423 11/30/93 07/11/95 12/30/99 5,442,022 08/172,137 12/21/93 08/15/95 12/30/99 5,450,351 08/154,765 11/19/93 09/12/95 12/30/99 5,454,677 08/271,863 07/07/94 10/03/95 12/30/99 5,464,393 08/264,628 06/23/94 11/07/95 12/28/99