The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 1989
Filed:
May. 22, 1987
Akihiro Takeuchi, Hyogo, JP;
Abstract
A tread pattern for a pneumatic tire having a plurality of circumferentially extending zig-zag and straight longitudinal grooves and a multiplicity of transverse grooves extending generally axially and joining the longitudinal grooves to define a block pattern. The tread pattern will change from a block pattern to a rib pattern as it wears because the transverse grooves extend to a shallower depth than the longitudinal grooves. The bottom of the longitudinal grooves, which are at a greater depth, preferably have a different zig-zag pattern than the part of the longitudinal groove which contact the road when the tire is new.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile