Air duct

Description

FIG. 1 is a bottom, front, and right side perspective view of an air duct showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left 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
D300777 April 18, 1989 Bales et al.
3120166 February 1964 Lyman
3359883 December 1967 Murphy
3608280 September 1971 Martin
4020753 May 3, 1977 Efstratis
4700550 October 20, 1987 Rhodes
4860548 August 29, 1989 Ryham
4864830 September 12, 1989 Ryham
Patent History
Patent number: D328345
Type: Grant
Filed: Jun 21, 1991
Date of Patent: Jul 28, 1992
Inventor: Thomas Ganse (Lemoore, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Terry M. Gernstein
Application Number: 7/718,869
Classifications