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. 24, 1982
Filed:
Nov. 17, 1980
Hiroyoshi Takigawa, Kodaira, JP;
Nobuhiro Miyamura, Higashimurayama, JP;
Bridgestone Tire Co., Ltd., Tokyo, JP;
Abstract
A heavy duty pneumatic tire having a tread provided on its outer surface with a plurality of circumferential grooves is disclosed. At least one of the circumferential grooves is opened on the tread surface at an open groove width corresponding to 2-8% of tread transverse width, has a groove bottom width substantially equal to the open groove width, and is provided on its groove bottom with plural protrusions separated from the opposed groove walls and at an interval between the adjoining protrusions in the circumferential direction of the groove.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile