Air filter

Details Air filter Air filter

2008-07-28

2009-02-24

Zarfas, Louis S (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0587361

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

REFERENCES:
patent: 1487312 (1924-03-01), Bull
patent: 1953120 (1934-04-01), Miller
patent: D205001 (1966-06-01), Englesberg
patent: D263496 (1982-03-01), Kimball et al.
patent: D285331 (1986-08-01), Cellini
patent: D308334 (1990-06-01), Gormley et al.
patent: H1157 (1993-04-01), Yanou et al.
patent: D426161 (2000-06-01), Hestehave et al.
patent: D432622 (2000-10-01), Thompson et al.
patent: D455782 (2002-04-01), Singh et al.
patent: D465181 (2002-11-01), Wang
patent: D491066 (2004-06-01), Le Goff
patent: D540349 (2007-04-01), Waki

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