Exhaust stack

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of an exhaust stack showing inventor's new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view;

Portions of the exhaust stack shown in broken lines in FIG. 7 are environment and form no part of the claimed design.

Claims

I claim the ornamental design for an exhaust stack, as shown and described.

Referenced Cited
U.S. Patent Documents
6357522 March 19, 2002 Dienhart et al.
6378559 April 30, 2002 Humphryson
6474839 November 5, 2002 Hutchison
6582108 June 24, 2003 Liang
6588923 July 8, 2003 Shih
6623134 September 23, 2003 Chang
6637537 October 28, 2003 Porter et al.
6648022 November 18, 2003 Pentz et al.
6655823 December 2, 2003 Chang
6663269 December 16, 2003 Leu
6910793 June 28, 2005 Shuen
6957903 October 25, 2005 Arakawa et al.
20070029132 February 8, 2007 Feight et al.
Patent History
Patent number: D597461
Type: Grant
Filed: Jun 13, 2008
Date of Patent: Aug 4, 2009
Inventor: Richard Sindelar (Rock Island, WA)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Michael A Pratt
Attorney: Wells St. John P.S.
Application Number: 29/319,726
Classifications
Current U.S. Class: Tail Pipe Extension Or Muffler (D12/194)