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Publication numberUSD232360 S
Publication typeGrant
Publication dateAug 13, 1974
Filing dateMay 11, 1972
Publication numberUS D232360 S, US D232360S, US-S-D232360, USD232360 S, USD232360S
InventorsRobert R. Watts
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Plumbing vent valve
US D232360 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Oflice 232,36"

Patented Aug. 13, 1974 PLUMBING VENT VALVE Robert R. Watts, Blue Springs, Mo., assignor to Watco Plastics, Inc.

Filed May 11, 1972, Ser. No. 252,528

Term of patent 7 years Int. Cl. D23-01 US. Cl. D23-19 FIG. is a perspective view of a plumbing vent valve 204,135 5/1878 Convery 137-2161 embodying my new design; 208,378 9/1878 Downey 137-2162 FIG. 2 is a top plan view thereof; 628,061 7/1899 Ayres 137-2162 FIG. 3 is a side elevational view thereof, the opposite 1,214,374 1/1917 Rowan 137-2162 side being essentially the same; and 1,427,098 8/1922 Fontier 137-2162 FIG. 4 is a bottom plan view thereof. 2,756,763 7/1956 'Morgenstern 137-2162 I claim: 3,183,923 5/1965 Henrikson 137-216 The ornamental design for a plumbing vent valve, as 3,311,929 4/1967 OBrien 137-216 shown and described. 3,414,003 12/1968 Wyckoff 137-217 3,425,438 2/1969 Suffron 137-216 ef en Cited 3,512,545 5/1970 Weaver 137-216 UNITED STATES PATENTS M S R 11 351 12 1939 Merrill D23-19 IA E LARGEN Pnmary Exammer D. 179,739 2/1957 McClelland D23-41 D. 223,094 3/1972 Coleman et a1. D23-19