Air purifier

Details Air purifier Air purifier

2007-09-25

2008-09-23

Zarfas, Louis S (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0577427

CLAIM:
I claim the ornamental design of an air purifier, as shown and described.

REFERENCES:
patent: D308415 (1990-06-01), Kunze
patent: D322849 (1991-12-01), Williams
patent: D339632 (1993-09-01), Immel
patent: D366520 (1996-01-01), Muderlak
patent: D374920 (1996-10-01), Muller et al.
patent: D407807 (1999-04-01), Rao
patent: D425609 (2000-05-01), Hyon
patent: D429805 (2000-08-01), Hyon
patent: D487140 (2004-02-01), Gao
patent: D518160 (2006-03-01), Normark
patent: D547849 (2007-07-01), Francisquini
patent: D548824 (2007-08-01), Christianson
patent: D553718 (2007-10-01), Shapiro

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