Double-walled tank

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FIG. 1 is a top and front and left side perspective view of the double-walled tank showing our new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a front view thereof the rear view being a mirror image thereof; and,

FIG. 4 is a left side elevational view thereof the right side being a mirror image thereof.

The broken lines shown in the figures are for illustrative purposes only, and the subject matter depicted thereby constitutes no part of the claimed design.


The ornamental design for a double-walled tank, as shown and described.

Referenced Cited
U.S. Patent Documents
D305353 January 2, 1990 Thomas
D336327 June 8, 1993 Zorb et al.
D349944 August 23, 1994 Harris
D394302 May 12, 1998 Harris et al.
D418196 December 28, 1999 Faltys et al.
Patent History
Patent number: D596265
Type: Grant
Filed: Jul 1, 2008
Date of Patent: Jul 14, 2009
Inventors: Dwayne Long (Springfield, MO), Scott Higgins (Ozark, MO), John R. Redmond (Springfield, MO), Dwayne Holden (Springfield, MO), Robert Letterman (Springfield, MO)
Primary Examiner: Robin V Webster
Attorney: Polsinelli Shughart PC
Application Number: 29/320,693