Air duct boot

Description

FIG. 1 is a front elevation view of an air duct boot showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
24660 July 1859 Potts
567231 September 1896 Glauber
925762 June 1909 Eager
2086007 July 1937 Tompkins
2215318 September 1940 Bristol
Patent History
Patent number: D314820
Type: Grant
Filed: May 22, 1987
Date of Patent: Feb 19, 1991
Inventor: John F. Sullivan (Oklahoma City, OK)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Laney, Dougherty, Hessin & Beavers
Application Number: 7/52,952
Classifications