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Publication numberUSD237968 S
Publication typeGrant
Publication dateDec 9, 1975
Filing dateJun 25, 1973
Publication numberUS D237968 S, US D237968S, US-S-D237968, USD237968 S, USD237968S
InventorsJohn W. Olson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Thumbscrew valve depressor
US D237968 S
Abstract  available in
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Description  (OCR text may contain errors)

Des. 237,968

Patented Dec. 9, 1975 United States Patent THUMBSCREW VALVE DEPRESSOR John W. Olson, .lr., Garland, Tex., assignor to C & D Valve Manufacturing Company, Oklahoma City, Okla.

Filed June 25, 1973, Ser. No. 372,960

Term of patent 14 years Int. Cl. D23--0] US. Cl. D23-40 FIG. 1 is a left side elevation view of the valve depressor showing my new design.

FIG. 2 is a right side elevation view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a front elevation view thereof.

FIG. 6 is a rear elevation view thereof.

FIG. 7 is an isometric view thereof.

I claim: The ornamental design for a thumbscrew valve depressor, substantially as shown and described.

References Cited UNITED STATES PATENTS D. 191,425 9/1961 Popp D2338 WALLACE R. BURKE, Primary Examiner J. M. GANDY, Assistant Examiner

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7647944Oct 6, 2006Jan 19, 2010Michael D. HowertonCombinational valve system