Vent stack cover

Description

FIG. 1 is a perspective view taken from the top, front and left side of a vent stack cover showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D139787 December 1944 Hausman
D252337 July 10, 1979 Hehnen
D268826 May 3, 1983 Carbajales
D275311 August 28, 1984 Wolfe
D286560 November 4, 1986 Wolfe
1893993 January 1933 Hirsch
2855712 October 1958 Diletto
3153871 October 1964 Semba
Foreign Patent Documents
712577 November 1941 DEX
929615 February 1948 FRX
Patent History
Patent number: D337152
Type: Grant
Filed: Apr 4, 1991
Date of Patent: Jul 6, 1993
Inventor: Robert W. Smart (Beaverton, OR)
Primary Examiner: James R. Largen
Attorney: Terry M. Gernstein
Application Number: 7/680,279