Recreational vehicle sewer coupling

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Description

FIG. 1 is a side elevational view of a recreational vehicle sewer coupling showing my new design the opposite being a mirror image of the side shown;

FIG. 2 is a front elevational view thereof; and

FIG. 3 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D229496 December 1973 Hand
2643138 June 1953 Jacobs et al.
2991091 July 1961 De Cenzo
3850210 November 1974 Buxton
Patent History
Patent number: D246250
Type: Grant
Filed: Sep 10, 1975
Date of Patent: Nov 1, 1977
Inventor: Robley H. Baldwin (South Lake Tahoe, CA)
Primary Examiner: James R. Largen
Attorney: Robley H. Baldwin
Application Number: 5/612,178
Classifications
Current U.S. Class: D23/43
International Classification: D2301;