Duct for a toilet bowl ventilation system

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Description

FIG. 1 is a perspective view of a duct for a toilet bowl ventilation system showing my new design from the top, one end, and one side; and,

FIG. 2 is a perspective view thereof shown from the bottom, and end and side opposite that shown in FIG. 1.

Referenced Cited
U.S. Patent Documents
D269117 May 24, 1983 Sherrard
D271329 November 8, 1983 Welsh
D307568 May 1, 1990 Lopez
3153794 October 1964 Hill
3849808 November 1974 Olson et al.
Patent History
Patent number: D398049
Type: Grant
Filed: Dec 30, 1996
Date of Patent: Sep 8, 1998
Inventor: Jerry F. Willis (Houston, TX)
Primary Examiner: Holly Baynham
Attorney: Kenneth A. Roddy
Application Number: 0/64,374
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393)
International Classification: 2399;