Breathing mask

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Description

FIG. 1 is a front view showing the breathing mask, showing my new design;

FIG. 2 is a side view thereof; and

FIG. 3 is a rear view thereo;

Referenced Cited
U.S. Patent Documents
D231803 June 1974 Huddy
D236033 July 1975 Dryden
D239469 April 1976 Halldin et al.
3315674 April 1967 Bloom et al.
3556097 January 1971 Wallace
Patent History
Patent number: D258994
Type: Grant
Filed: Jul 5, 1978
Date of Patent: Apr 21, 1981
Inventor: Christian Grane (2980 Kokkedal)
Primary Examiner: Bernard Ansher
Law Firm: Witherspoon & Hargest
Application Number: 5/922,153
Classifications
Current U.S. Class: D29/8
International Classification: D2902;