Air purifier

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment

Design Patent

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Design Patent

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D0521135

CLAIM:
The ornamental design for an “air purifier,” as shown and described.

REFERENCES:
patent: D450825 (2001-11-01), Nakamura et al.
patent: D472626 (2003-04-01), Nakamura
patent: D481786 (2003-11-01), Tokunaga
patent: D489800 (2004-05-01), Tokunaga
patent: D489801 (2004-05-01), Shimizu
patent: D497984 (2004-11-01), Tokunaga
patent: D498296 (2004-11-01), Shimizu
patent: D503972 (2005-04-01), Pippel et al.
U.S. Appl. No. 29/197,291, filed Jan. 14, 2004 Koike.

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