Patents Reinstated Due to the Acceptance of a
Late Maintenance Fee From 8/22/97
Patent Serial Filing Issue Granted
Number Number Date Date Date
4,396,172 06/275,341 06/19/81 08/02/83 08/28/97
4,448,357 06/355,794 03/08/82 05/15/84 08/26/97
4,511,666 06/450,337 12/16/82 04/16/85 08/22/97
4,563,981 06/670,054 11/09/84 01/14/86 08/22/97
4,742,936 07/071,605 07/09/87 05/10/88 08/26/97
4,791,413 07/078,126 07/15/87 12/13/88 08/22/97
4,817,531 07/145,077 01/19/88 04/04/89 08/22/97
4,832,143 07/149,417 01/29/88 05/23/89 08/26/97
4,834,270 07/179,854 04/11/88 05/30/89 08/25/97
4,901,387 07/170,819 03/21/88 02/20/90 08/25/97
4,997,224 07/399,070 08/24/89 03/05/91 08/28/97
5,006,046 07/410,841 09/22/89 04/09/91 08/28/97
5,018,230 07/508,165 04/12/90 05/28/91 08/25/97
5,037,136 07/506,021 04/09/90 08/06/91 08/27/97
5,090,749 07/638,367 01/04/91 02/25/92 08/28/97
5,136,795 07/815,415 12/31/91 08/11/92 08/26/97
5,149,026 07/751,137 08/28/91 09/22/92 08/25/97
5,156,712 07/482,908 02/22/90 10/20/92 08/25/97
5,170,620 07/693,141 04/29/91 12/15/92 08/22/97
5,201,967 07/806,077 12/11/91 04/13/93 08/22/97
5,218,757 07/722,545 06/25/91 06/15/93 08/22/97
5,225,391 07/840,083 02/24/92 07/06/93 08/22/97
Patents Reinstated Due to the Acceptance of a
Late Maintenance Fee From 8/29/97
Patent Serial Filing Issue Granted
Number Number Date Date Date
4,499,193 06/450,336 12/16/82 02/12/85 08/29/97
5,015,909 07/458,849 12/29/89 05/14/91 08/29/97
5,160,600 07/488,256 03/05/90 11/03/92 09/04/97
Patents Reinstated Due to the Acceptance of a
Late Maintenance Fee From 9/05/97
Patent Serial Filing Issue Granted
Number Number Date Date Date
4,832,453 06/944,501 12/17/86 05/23/89 09/10/97