Pipe vent

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Description

FIG. 1 is a top perspective view of a pipe vent, showing our new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is an end elevational view thereof.

FIG. 5 is a side elevational view thereof.

FIG. 6 is an elevational view taken from the end opposite that shown in FIG. 4.

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D179739 February 1957 McClelland
D211875 August 1968 Porter
D223358 April 1972 Porter
1719932 July 1929 Holtson
1868730 July 1932 Dowrio
2601820 July 1952 Paul et al.
2825276 March 1958 Porter
3469520 September 1969 Foy et al.
Patent History
Patent number: D245333
Type: Grant
Filed: May 26, 1976
Date of Patent: Aug 9, 1977
Inventors: William V. Porter (New Braunfels, TX), Maurice A. Riordan (Houston, TX)
Primary Examiner: James R. Largen
Attorney: John R. Powell
Application Number: 5/690,306
Classifications
Current U.S. Class: D23/41
International Classification: D2301;