Air filter, or similar article

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Description

FIG. 1 is a plan view of one face of the air filter showing our design;

FIG. 2 is an edge elevational view thereof looking toward the right side in FIG. 1, the opposite edge being identical;

FIG. 3 is an edge elevational view looking toward the lower edge thereof in FIG. 1, the opposite edge being identical; and

FIG. 4 is a plan view of the opposite face thereof.

Referenced Cited
U.S. Patent Documents
D177925 June 1956 Powers et al.
2677436 May 1954 Mazek
2715453 August 1955 Lange
3774377 November 1973 Bishop
3831765 August 1974 Flynn et al.
Patent History
Patent number: D244538
Type: Grant
Filed: May 7, 1975
Date of Patent: May 31, 1977
Assignee: Korhumel Industries, Inc.
Inventors: Charles E. Wharton (Lake Forest, IL), Clarence Bell (Chicago, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Larry Jones
Attorney: Benjamin H. Sherman
Application Number: 5/575,459
Classifications
Current U.S. Class: D23/149
International Classification: D2304;