Air vent

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

Design Patent

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Design Patent

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D0514218

CLAIM:
The ornamental design for an air vent, as shown and described.

REFERENCES:
patent: 957776 (1910-05-01), Ilg
patent: 2399618 (1946-05-01), Balmfirth
patent: D218162 (1970-07-01), Dawkins
patent: D230736 (1974-03-01), Rousey
patent: D235876 (1975-07-01), Dixon
patent: D279601 (1985-07-01), Sexton
patent: D351903 (1994-10-01), Whitley, II
patent: D417267 (1999-11-01), Sacco et al.
patent: D485894 (2004-01-01), Fraser et al.
patent: D492632 (2004-07-01), Pfeiffer
patent: D494907 (2004-08-01), Pfeiffer

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