Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 8/28/98 Patent Serial Filing Issue Granted Number Number Date Date Date 4,463,478 06/391,129 06/23/82 08/07/84 09/01/98 4,487,267 06/461,259 01/26/83 12/11/84 09/02/98 4,556,032 06/568,393 01/05/84 12/03/85 09/02/98 4,558,922 06/608,474 05/09/84 12/17/85 09/02/98 4,567,708 06/536,401 09/27/83 02/04/86 09/02/98 4,581,158 06/654,140 09/26/84 04/08/86 09/03/98 4,791,426 06/715,644 03/21/85 12/13/88 09/01/98 4,833,897 06/369,239 04/16/82 05/30/89 09/02/98 4,899,899 07/370,233 06/21/89 02/13/90 09/01/98 4,909,448 07/269,536 12/27/88 03/20/90 08/31/98 4,978,821 07/442,204 12/01/89 12/18/90 09/03/98 5,144,416 07/594,945 10/10/90 09/01/92 09/01/98 5,207,394 07/893,941 06/04/92 05/04/93 09/02/98 5,284,395 07/942,901 09/10/92 02/08/94 09/02/98 5,286,852 07/772,604 10/08/91 02/15/94 09/02/98