Patents Reinstated Due to the Acceptance of a Late Maintenance Fee From 07/31/98 Patent Serial Filing Issue Granted Number Number Date Date Date 4,479,838 06/390,976 06/22/82 10/30/84 07/31/98 4,547,868 06/634,900 07/26/84 10/15/85 08/04/98 4,557,903 06/533,148 09/16/83 12/10/85 08/05/98 4,574,774 06/658,662 10/09/84 03/11/86 08/04/98 4,824,411 07/148,041 01/25/88 04/25/89 07/31/98 4,887,396 07/231,498 08/12/88 12/19/89 07/31/98 4,903,461 07/276,738 11/28/88 02/27/90 08/04/98 4,911,377 07/367,427 06/16/89 03/27/90 07/31/98 4,930,883 07/299,889 01/19/89 06/05/90 07/31/98 4,968,540 07/280,432 12/06/88 11/06/90 08/04/98 5,120,225 07/694,468 05/01/91 06/09/92 08/04/98 5,241,047 07/549,964 07/09/90 08/31/93 08/05/98 5,251,934 07/739,910 08/02/91 10/12/93 08/04/98 5,266,261 07/442,338 11/17/89 11/30/93 07/31/98 5,269,019 07/681,753 04/08/91 12/07/93 08/04/98