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 showing my new design from the bottom, and end and side opposite that shown in FIG. 1.

Referenced Cited
U.S. Patent Documents
D258410 March 3, 1981 Mayo
D307568 May 1, 1990 Lopez
Patent History
Patent number: D389907
Type: Grant
Filed: Mar 12, 1996
Date of Patent: Jan 27, 1998
Inventor: Jerry F. Willis (Houston, TX)
Primary Examiner: Holly Baynham
Attorney: Kenneth A. Roddy
Application Number: 0/51,509
Classifications
Current U.S. Class: Vent, Ductwork, Or Element Thereof (D23/393)
International Classification: 2304;