Louvered ventilation grille

Details Louvered ventilation grille Louvered ventilation grille

2011-05-31

2011-05-31

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

D0638925

CLAIM:
The ornamental design for a louvered air ventilation grille, as shown and described.

REFERENCES:
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patent: D362059 (1995-09-01), Wojcik
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patent: 6227962 (2001-05-01), Orendorff
patent: 6537146 (2003-03-01), Haynes
patent: D475131 (2003-05-01), Pilger
patent: D536778 (2007-02-01), O'Hagin
patent: 7328478 (2008-02-01), Jenkins
patent: 2003/0220069 (2003-11-01), Orendorff

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