United States Patent and Trademark Office OG Notices: 20 May 2003

                 Patents Reinstated Due to the Acceptance of a
                     Late Maintenance Fee from 04/21/2003

Patent          Application     Filing          Issue           Granted
Number          Number          Date            Date            Date

4,913,361       07/202,683      06/06/88        04/03/90        04/25/03
4,970,903       07/374,968      06/30/89        11/20/90        04/21/03
4,982,570       07/501,439      03/22/90        01/08/91        04/24/03
4,984,429       06/934,755      11/25/86        01/15/91        04/23/03
4,985,443       07/389,603      08/04/89        01/15/91        04/21/03
4,990,018       07/451,295      12/14/89        02/05/91        04/23/03
5,241,944       07/933,779      08/24/92        09/07/93        04/23/03
5,272,899       07/945,883      09/17/92        12/28/93        04/22/03
5,379,351       07/838,382      02/19/92        01/03/95        04/24/03
5,488,626       07/640,653      01/14/91        01/30/96        04/22/03
5,636,830       08/505,973      07/24/95        06/10/97        04/22/03
5,638,796       08/253,844      06/03/94        06/17/97        04/24/03
5,745,480       08/681,191      07/22/96        04/28/98        04/23/03
5,790,527       08/359,691      12/20/94        08/04/98        04/23/03
5,801,805       08/760,469      12/05/96        09/01/98        04/23/03
5,810,513       08/715,132      09/17/96        09/22/98        04/23/03
5,834,024       08/814,602      03/10/97        11/10/98        04/23/03
5,845,984       08/692,701      08/06/96        12/08/98        04/23/03
5,871,294       08/844,937      04/23/97        02/16/99        04/24/03
5,871,820       08/702,370      08/23/96        02/16/99        04/23/03