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Publication numberUSD250047 S
Publication typeGrant
Application numberUS 05/733,624
Publication dateOct 24, 1978
Filing dateOct 18, 1976
Publication number05733624, 733624, US D250047 S, US D250047S, US-S-D250047, USD250047 S, USD250047S
InventorsGeorge Tom Lewis, John Hamilton Price
Original AssigneeChemetron Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Breathing mask
US D250047 S
Abstract  available in
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  1. The ornamental design for a breathing apparatus, substantially as shown and described.

FIG. 1 is a perspective view of a breathing mask showing our new design;

FIG. 2 is a left side elevation thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a bottom perspective view thereof, and

FIG. 5 is a right side elevation of a modified embodiment of the mask illustrated in FIG. 1.

The broken lines representing the human form is shown for illustrative purposes only.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7559323 *Nov 9, 2005Jul 14, 2009Respan Products, Inc.Disposable mask assembly with exhaust filter
US8342179Apr 9, 2009Jan 1, 2013Respan Products, Inc.Disposable mask assembly with exhaust filter and valve disc and method of assembling same
U.S. ClassificationD24/110.1, 128/205.25