Air filter

Details Air filter Air filter

2002-07-18

2003-05-06

Taylor, Robin V. (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0474266

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

REFERENCES:
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patent: 4834784 (1989-05-01), Bidanset
patent: 4838909 (1989-06-01), Bidanset
patent: D355482 (1995-02-01), Grigsby
patent: 5556441 (1996-09-01), Courtwright et al.
patent: 5674302 (1997-10-01), Nakayama et al.
patent: 5679122 (1997-10-01), Moll et al.
patent: 5863424 (1999-01-01), Lee
patent: 6165243 (2000-12-01), Kawaguchi et al.
patent: 6293981 (2001-09-01), Holderle et al.
patent: 6395049 (2002-05-01), Knodler et al.
patent: 6507717 (2003-01-01), Kushida

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