Filter
The ornamental design for a filter, as shown and described.
Description
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
| D216691 | March 1970 | Bates et al. |
| D220958 | June 1971 | Marsh |
| D238363 | January 1976 | Polens |
| D265227 | June 29, 1982 | Jolley |
| 4320004 | March 16, 1982 | Schecter |
| 703439 | April 1987 | JPX |
| 6342053 | 1988 | JPX |
| 6342054 | 1988 | JPX |
- Mechantronics Design News, vol. 8, no. 2, 1983, p. 15.
Patent History
Patent number: H1157
Type: Grant
Filed: Dec 21, 1989
Date of Patent: Apr 6, 1993
Inventors: Manabu Yanou (Higashi-ku, Nagoya-shi Aichi), Osami Kato (Higashi-ku, Nagoya-shi Aichi), Kazuo Kuwahara (Chuo-hu Tokyo 104)
Primary Examiner: Bernarr E. Gergory
Application Number: 7/454,131
Type: Grant
Filed: Dec 21, 1989
Date of Patent: Apr 6, 1993
Inventors: Manabu Yanou (Higashi-ku, Nagoya-shi Aichi), Osami Kato (Higashi-ku, Nagoya-shi Aichi), Kazuo Kuwahara (Chuo-hu Tokyo 104)
Primary Examiner: Bernarr E. Gergory
Application Number: 7/454,131
Classifications
Current U.S. Class:
Filter Or Strainer (2) (D23/209)
