Backflow prevention sink

- DeGarmo Plumbing, Inc.
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Description

FIG. 1 is a front perspective view of the backflow prevention sink.

FIG. 2 is a front view of the backflow prevention sink.

FIG. 3 is a bottom view of the backflow prevention sink; and,

FIG. 4 is a side view of the backflow prevention sink.

The present application is directed to the design illustrated in the drawings. The broken line portions of the disclosure are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a backflow prevention sink, as shown and described.

Referenced Cited
U.S. Patent Documents
D243182 January 25, 1977 Seymour et al.
D255923 July 15, 1980 Rosenkranz
4440185 April 3, 1984 Wiltse
D285522 September 9, 1986 Basini
4856559 August 15, 1989 Lipshultz et al.
4991655 February 12, 1991 McHugh
5217038 June 8, 1993 Pinder
5392803 February 28, 1995 Bruce
5649681 July 22, 1997 Faye
D382332 August 12, 1997 Schwartz
5876000 March 2, 1999 Ismert
6021805 February 8, 2000 Horne et al.
6397878 June 4, 2002 Nolan
20030188779 October 9, 2003 DeGarmo
20050098212 May 12, 2005 DeGarmo
Other references
  • Picture illustrating general subject matter of a unit installed more than one year prior to the filing date of this application (Apr. 9, 2002).
Patent History
Patent number: D544073
Type: Grant
Filed: Dec 14, 2005
Date of Patent: Jun 5, 2007
Assignee: DeGarmo Plumbing, Inc. (Janesville, WI)
Inventor: Craig DeGarmo (Jamesville, WI)
Primary Examiner: Robert A. Delehanty
Attorney: Michael Best & Friedrich LLP
Application Number: 29/244,839
Classifications
Current U.S. Class: Sink (D23/284)