Patent Grant
D412615
| Number | Name | Date | Kind |
|---|---|---|---|
| D197750 | Rosenberg | Mar 1964 | |
| D357322 | Matthews | Apr 1995 | |
| D359162 | Knight | Jun 1995 | |
| D362336 | Weaver | Sep 1995 | |
| 755713 | Shanahan | Mar 1904 | |
| 879471 | Kabureck | Feb 1908 | |
| 1534440 | Carter | Apr 1925 | |
| 1937438 | Schacht | Nov 1933 | |
| 2857925 | Higginbotham | Oct 1958 | |
| 3251372 | Smith | May 1966 | |
| 3876041 | Pivacek | Apr 1975 | |
| 4029311 | Chanslor et al. | Jun 1977 | |
| 4098283 | Tritle, Jr. | Jul 1978 | |
| 4510957 | Frank | Apr 1985 | |
| 4562851 | Frank | Jan 1986 | |
| 4708154 | Edwards | Nov 1987 | |
| 4747180 | Screen | May 1988 | |
| 4881564 | Fetterman | Nov 1989 | |
| 4947882 | Levasseur | Aug 1990 | |
| 5032135 | Jacobson | Jul 1991 | |
| 5178176 | Fetterman | Jan 1993 | |
| 5307828 | Gardner et al. | May 1994 | |
| 5377710 | Laser | Jan 1995 | |
| 5573213 | Henderson et al. | Nov 1996 | |
| 5692762 | Obitts | Dec 1997 | |
| 5711335 | Carpinella | Jan 1998 |
| Entry |
|---|
| P. 5, Walker attachments; Tubular Fabricators Industry, Inc., 600 West Wythe Street, Petersburg, Virginia 23803. Published at least as early as Nov., 1997. |
| P. 5, Walker attachments; Invacare Corporation, 899 Cleveland Street, Elyria, Ohio 44036-4028. Publication date Feb., 1996. |
| P. 6, Walker attachments; Guardian Products Inc., 4175 Guardian Street, Simi Valley, California 93063. Publication date 1996. |
| P. 27, Walker attachments; Rubbermaid Commercial Products Inc., 3124 Valley Avenue, Winchester, Virginia 22601. Publication date 1997. |
