Face mask valve

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Description

FIG. 1 is a top plan view of a face mask valve showing my design and how it is attached to a face mask;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown; and,

FIG. 4 is top perspective view thereof.

The broken lines showing of a face mask are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D333015 February 2, 1993 Farmer et al.
2007330 July 1935 Hicks
2428451 October 1947 Emerson
2970749 February 1961 Montague
3037497 June 1962 Roberson
3046978 July 1962 Lea
3099985 August 1963 Wilson et al.
3136312 June 1964 Gattone
3196866 July 1965 Adams
3796216 March 1974 Schwrtz
3882860 May 1975 Frimberger
4328797 May 11, 1982 Rollins, III et al.
4498472 February 12, 1985 Tanaka
4627796 December 9, 1986 Moore
5217006 June 8, 1993 McCulloch
Foreign Patent Documents
72248 February 1993 CAX
0252618 January 1988 EPX
152864 November 1969 NZX
399657 March 1966 CHX
769347 March 1957 GBX
841558 July 1960 GBX
1030404 May 1966 GBX
1157331 July 1969 GBX
2141490 December 1984 GBX
2145335 March 1985 GBX
2182249 May 1987 GBX
Patent History
Patent number: D357532
Type: Grant
Filed: Apr 7, 1993
Date of Patent: Apr 18, 1995
Inventor: Norma D. McCulloch (Glenfield, Auckland 10)
Primary Examiner: Kay H. Chin
Law Firm: Wenderoth, Lind & Ponack
Application Number: 0/6,772
Classifications
Current U.S. Class: D24/1106; D24/1105