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
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
Current U.S. Class:
Vent, Ductwork, Or Element Thereof (D23/393)