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:
Sep. 05, 2000
Filed:
Feb. 10, 1998
Akio Ikeda, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Hyogo-Ken, JP;
Abstract
A pneumatic tire comprises a tread portion provided with a plurality of longitudinal grooves, each of the longitudinal grooves extending continuously in the tire circumferential direction and having a bottom and a pair of sidewalls defining corners therebetween, the corners being rounded by a circular arc whose radius is not more than 2 mm, the inclination angles of the sidewalls being in the range of not more than 15 degrees with respect to the normal direction to the tread surface line, the bottom being provided with a plurality of ribs which extend in the longitudinal direction of the groove in substantially parallel with each other so that the bottom has a wavy configuration having no angled corner, the heights of the ribs measured from the deepest point of the longitudinal groove being in the range of from 0.5 to 1.0 mm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile