Combustion air vent with top and bottom retainers
Description
Claims
The ornamental design for a combustion air vent with top and bottom retainers, as shown and described.
Referenced Cited
U.S. Patent Documents
D108821 | March 1938 | Pineau |
2949842 | August 1960 | Crandall |
D222724 | December 1971 | Zampetti et al. |
D247947 | May 23, 1978 | Noll |
D492401 | June 29, 2004 | Achen |
D493880 | August 3, 2004 | Achen |
D494669 | August 17, 2004 | Achen |
D507048 | July 5, 2005 | Achen |
D520626 | May 9, 2006 | Angers et al. |
D521630 | May 23, 2006 | Achen |
D526402 | August 8, 2006 | Achen |
D576723 | September 9, 2008 | Achen |
D582029 | December 2, 2008 | Achen |
Patent History
Patent number: D616976
Type: Grant
Filed: Nov 4, 2009
Date of Patent: Jun 1, 2010
Inventor: John J. Achen (Yuma, AZ)
Primary Examiner: T. Chase Nelson
Assistant Examiner: David G Muller
Attorney: The von Hellens Law Firm, Ltd.
Application Number: 29/346,669
Type: Grant
Filed: Nov 4, 2009
Date of Patent: Jun 1, 2010
Inventor: John J. Achen (Yuma, AZ)
Primary Examiner: T. Chase Nelson
Assistant Examiner: David G Muller
Attorney: The von Hellens Law Firm, Ltd.
Application Number: 29/346,669
Classifications
Current U.S. Class:
Register Or Diffuser (D23/388)