Air filter

Details Air filter Air filter

2010-01-21

2010-10-12

Muller, David G (Department: 2914)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0625399

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

REFERENCES:
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patent: D323017 (1992-01-01), Bernstein
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patent: 6149718 (2000-11-01), Cowan et al.
patent: 6319477 (2001-11-01), Du Toit
patent: D467323 (2002-12-01), Cho
patent: D481441 (2003-10-01), Liu
patent: D512135 (2005-11-01), Kim et al.
patent: D520621 (2006-05-01), Moser, III
patent: 7108738 (2006-09-01), Burns et al.

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