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The ornamental design for a tire tread, as shown and described. |
FIG. 1 is a side perspective view of a tire tread showing my 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 perspective 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 are for illustrative purposes only and form no part of the claimed design.
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 11 2000 | Bridgestone/Firestone Research, Inc. | (assignment on the face of the patent) | / | |||
Feb 11 2000 | ALLISON, WILLIAM B | BRIDGESTONE FIRESTONE RESEARCH, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010608 | /0771 | |
Nov 28 2001 | BRIDGESTONE FIRESTONE RESEARCH, INC | BRIDGESTONE FIRESTONE RESEARCH, LLC | ACKNOWLEDGEMENT OF CONVERSION | 012322 | /0614 | |
Nov 30 2001 | BRIDGESTONE FIRESTONE RESEARCH, LLC | Bridgestone Firestone North American Tire, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 012333 | /0690 |
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