Dust filter guard with a removable filter

Details Dust filter guard with a removable filter Dust filter guard with a removable filter

2010-01-06

2010-11-09

Nelson, T. Chase (Department: 2914)

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Filter

Design Patent

active

D0627067

CLAIM:
The ornamental design for a dust filter guard with a removable filter, as shown and described.

REFERENCES:
patent: 3905335 (1975-09-01), Kapp
patent: D251017 (1979-02-01), Amezcua
patent: 4267831 (1981-05-01), Aguilar
patent: 4327719 (1982-05-01), Childers
patent: D451193 (2001-11-01), McCormick
patent: 6978781 (2005-12-01), Jordan
patent: D556325 (2007-11-01), Michaels
patent: D572360 (2008-07-01), Dolezal et al.
patent: D608441 (2010-01-01), Scharlott
patent: 2007/0175478 (2007-08-01), Brunst
patent: 2008/0023007 (2008-01-01), Dolezal et al.

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