Breathing filter

Details Breathing filter Breathing filter

2007-01-23

2007-01-23

Davis, Antoine D. (Department: 2916)

Medical and laboratory equipment

Equipment for diagnosis, analysis, or treatment

Filter

Design Patent

active

29223307

CLAIM:
The ornamental design for a breathing filter, as shown and described.

REFERENCES:
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patent: 5460172 (1995-10-01), Eckerbom et al.
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patent: 5992413 (1999-11-01), Martin, Jr. et al.
patent: 6095135 (2000-08-01), Clawson et al.
patent: 6105576 (2000-08-01), Clawson et al.
patent: D441449 (2001-05-01), Gaskell
patent: 6363930 (2002-04-01), Clawson et al.
patent: 6415788 (2002-07-01), Clawson et al.
patent: 2 267 840 (1993-12-01), None

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