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Patent Grant
D263496

References
Source

Patent Number
D263,496
Date Filed
Monday, September 24, 1979
45 years ago
Date Issued
Tuesday, March 23, 1982
43 years ago

Inventors
- Philip C. Kimball
- Julian S. Natanson
Original Assignees
- Whatman Reeve Angel Limited
Examiners
- Largen; James R.
Agents
- Crowley; Richard P.

US Classifications
- D23 - Environmental heating and cooling
- D12 - Transportation
Field of Search
- US
- D23 3
- D23 4
- D23 149
- D12 194
- 055 276
- 055 419
- 055 500
- 055 505
- 055 DIG 25
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a filter, as shown and described.

US Referenced Citations (8)

Number	Name	Date	Kind
D105294	McCabe	Jul 1937
D117566	Koehler	Nov 1939
D220165	Trainor	Mar 1971
D248485	Strauss	Jul 1978
1779458	Annis	Oct 1930
2951551	West	Sep 1960
3454129	Everett	Jul 1969
4249918	Argo et al.	Feb 1981