Protective mask

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Description

FIG. 1 is a front perspective view of a protective mask showing my new design; and,

FIG. 2 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
D214817 July 1989 Widolf
D237220 October 1975 Stackhouse
3528415 March 1967 Malmin
4080664 March 28, 1978 Morris et al.
4296746 October 27, 1981 Mason, Jr. et al.
4638410 January 20, 1987 Barker
4764990 August 23, 1988 Markert
Patent History
Patent number: D302606
Type: Grant
Filed: Dec 2, 1986
Date of Patent: Aug 1, 1989
Inventor: Marek Blasiak (S-433 64 Partille)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Balogh, Osann, Kramer, Dvorak, Genova & Traub
Application Number: 6/937,189
Classifications
Current U.S. Class: D29/9; D29/6