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:
Jun. 30, 1998
Filed:
Oct. 06, 1995
Masashiro Moriya, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
This invention provides pneumatic tires having improved wet performance without degrading resistance to uneven wear. A pneumatic tire having a plurality of main grooves and a large number of sipes extending between adjacent main grooves and opening to both grooves is characterized in that the sipe has substantially uniform width in the depth direction at the both end portions opening to the main grooves, and has an expanded width portion at the bottom of the sipe at at least the greater part of the remaining portion except for the uniform width portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile