Filter cartridge frame

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Description

FIG. 1 is a perspective view of a filter cartridge frame embodying my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D35722 February 1902 Ebsen
D235870 July 1975 Sheehan
D256943 September 16, 1980 Angolinetta
3377991 April 1968 Rubert
3513978 May 1970 Newsteder
3525435 August 1970 Conner, Jr.
3815547 June 1977 Willinger et al.
4186093 January 29, 1980 Willinger
4206719 June 10, 1980 Faris
Patent History
Patent number: D271416
Type: Grant
Filed: Mar 16, 1981
Date of Patent: Nov 15, 1983
Inventor: Gerald J. Mayer (Toledo, OH)
Primary Examiner: James R. Largen
Law Firm: Wilson, Fraser, Barker & Clemens
Application Number: 6/244,040
Classifications
Current U.S. Class: D23/4
International Classification: D2301;