Combustion air vent with top and bottom retainers

Details Combustion air vent with top and bottom retainers Combustion air vent with top and bottom retainers

2009-11-04

2010-06-01

Nelson, T. Chase (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Design Patent

active

D0616976

CLAIM:
The ornamental design for a combustion air vent with top and bottom retainers, as shown and described.

REFERENCES:
patent: D108821 (1938-03-01), Pineau
patent: 2949842 (1960-08-01), Crandall
patent: D222724 (1971-12-01), Zampetti et al.
patent: D247947 (1978-05-01), Noll
patent: D492401 (2004-06-01), Achen
patent: D493880 (2004-08-01), Achen
patent: D494669 (2004-08-01), Achen
patent: D507048 (2005-07-01), Achen
patent: D520626 (2006-05-01), Angers et al.
patent: D521630 (2006-05-01), Achen
patent: D526402 (2006-08-01), Achen
patent: D576723 (2008-09-01), Achen
patent: D582029 (2008-12-01), Achen

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