U.S. patent number D421,582 [Application Number D/092,730] was granted by the patent office on 2000-03-14 for tire tread. This patent grant is currently assigned to Bridgestone/Firestone Research Inc.. Invention is credited to Keith A. Dumigan, Bill J. Wallet.
United States Patent | D421,582 |
Dumigan , et al. | March 14, 2000 |
Inventors: | Dumigan; Keith A. (Akron, OH), Wallet; Bill J. (Marshallville, OH) |
---|---|
Assignee: | Bridgestone/Firestone Research
Inc. (Akron, OH) |
Appl. No.: | D/092,730 |
Filed: | August 26, 1998 |
Current U.S. Class: | D12/588 |
Current International Class: | 1215 |
Field of Search: | ;D12/141-143,146-151 ;152/209.1,209.8,209.9,209.11,209.16,209.18,209.28,900,901,902,903 |
D309590 | July 1990 | Nakatani |
D387709 | December 1997 | Lo |
D390517 | February 1998 | Guspodin et al. |
D400135 | October 1998 | Blankenship et al. |
D403633 | January 1999 | Legge et al. |
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.. |
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