Tire Tread


FIG. 1 is a side perspective view of a tire tread showing our new design, it being understood that the tread pattern is repeated throughout the circumference of the tire tread, the opposite side being the same as that shown;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view of the right side thereof, the opposite side being identical thereto; and,

FIG. 4 is an enlarged fragmentary front elevational view thereof.

The dark stippled surface shading represents the recessed portion of the tread grooves, having a depth as best shown in FIG. 2; the broken lines defining the tire sidewall and inner bead and the peripheral boundary between the tire tread and sidewall are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D309590 July 31, 1990 Nakatani
D387709 December 16, 1997 Lo
D390517 February 10, 1998 Guspodin et al.
D400135 October 27, 1998 Blankenship et al.
D403633 January 5, 1999 Legge et al.
Other references
  • Centennial Interceptor ZR-X Tire, 1997 Tread Design Guide, p. 18, Jan. 1997. Futura 2000 ATD Tire, 1997 Tread Design Guide, p. 32, Jan. 1997. Goodyear Invicta GS Tire, 1997 Tread Design Guide, p. 37, Jan. 1997.
Patent History
Patent number: D421582
Type: Grant
Filed: Aug 26, 1998
Date of Patent: Mar 14, 2000
Assignee: Bridgestone/Firestone Research Inc. (Akron, OH)
Inventors: Keith A. Dumigan (Akron, OH), Bill J. Wallet (Marshallville, OH)
Primary Examiner: Robert M. Spear
Attorney: D. A. Thomas
Application Number: 0/92,730
Current U.S. Class: D12/143
International Classification: 1215;