Patent Reinstated Due to the Acceptance of a Late Maintenance Fee From 04/09/99 Patent Serial Filing Issue Granted Number Number Date Date Date 4,557,118 06/678,917 12/06/84 12/10/85 04/09/99 4,784,986 06/925,061 10/30/86 11/15/88 04/14/99 4,810,513 06/925,650 10/30/86 03/07/89 04/09/99 4,832,013 07/148,910 01/27/88 05/23/89 04/14/99 4,913,394 07/252,156 10/03/88 04/03/90 04/09/99 4,926,605 07/191,419 05/09/88 05/22/90 04/14/99 5,158,155 07/595,553 10/11/90 10/27/92 04/14/99 5,159,580 07/770,545 10/03/91 10/27/92 04/14/99 5,197,040 07/860,882 03/31/92 03/23/93 04/14/99 5,212,722 07/905,229 06/29/92 05/18/93 04/12/99 5,222,121 07/540,436 06/19/90 06/22/93 04/09/99 5,245,573 07/702,536 05/20/91 09/14/93 04/14/99 5,250,075 07/939,949 09/02/92 10/05/93 04/15/99 5,258,222 07/631,893 12/21/90 11/02/93 04/09/99 5,261,012 07/881,108 05/11/92 11/09/93 04/09/99 5,296,183 07/933,371 08/21/92 03/22/94 04/12/99 5,308,541 07/623,380 11/15/90 05/03/94 04/09/99 5,313,921 07/995,785 12/23/92 05/24/94 04/15/99 5,318,960 07/893,011 06/03/92 06/07/94 04/14/99 5,320,590 07/991,281 12/15/92 06/14/94 04/12/99 5,322,083 08/120,077 09/13/93 06/21/94 04/12/99 5,325,881 07/985,893 12/04/92 07/05/94 04/14/99 5,328,170 07/849,223 03/10/92 07/12/94 04/09/99 5,339,625 07/986,087 12/04/92 08/23/94 04/12/99 5,346,476 07/875,756 04/29/92 09/13/94 04/09/99 5,347,950 07/887,726 05/22/92 09/20/94 04/09/99