Tread portion of an automobile tire

- Bridgestone Corporation
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FIG. 1 is a perspective view of the top, front and right side of a tread portion of an automobile tire showing my new design, it being understood that the tread pattern repeats itself uniformly throughout the circumference of the tire;

FIG. 2 is a front elevational view thereof, the top and bottom plan views being identical thereto;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is an enlarged fragmentary front elevational view thereof; and,

FIG. 7 is a cross-sectional view taken along the line 7—in FIG. 6 thereof.

The elements shown in broken lines are for illustrative purposes only and form no part of the claimed design.

In the drawings, the stippled surface shading represents the recessed portion of the tread grooves, having the depth and configuration shown in FIG. 7.


The ornamental design for a tread portion of an automobile tire, as shown and described.

Referenced Cited
U.S. Patent Documents
D384608 October 7, 1997 Schuster
D390173 February 3, 1998 Aoki
D414449 September 28, 1999 Schuster
D477566 July 22, 2003 Nonaka
D480044 September 30, 2003 Nonaka
D485231 January 13, 2004 Nonaka
D498455 November 16, 2004 Nonaka
Other references
  • Bridgestone M725 & M726 Tires, 2002 Tread Design Guide, Jan. 2002, p. 116. 2/5 & 3/2.*
  • Goodyear Unisteel G372 LHD Tire, 2002 Tread Design Guide, Jan. 2002, p. 126. 4/1.
Patent History
Patent number: D503921
Type: Grant
Filed: Mar 26, 2004
Date of Patent: Apr 12, 2005
Assignee: Bridgestone Corporation (Tokyo)
Inventor: Gentaku Yamaura (Chuo-ku)
Primary Examiner: Robert M. Spear
Attorney: Sughrue Mion, PLLC
Application Number: 29/202,112