|Publication number||USD237968 S|
|Publication date||Dec 9, 1975|
|Filing date||Jun 25, 1973|
|Publication number||US D237968 S, US D237968S, US-S-D237968, USD237968 S, USD237968S|
|Inventors||John W. Olson|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
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
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7647944||Oct 6, 2006||Jan 19, 2010||Michael D. Howerton||Combinational valve system|