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:
Oct. 06, 1987
Filed:
Jan. 23, 1986
Applicant:
Inventor:
Katsuharu Mitsutake, Itami, JP;
Assignee:
Toyo Tire & Rubber Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
1522 / ;
Abstract
A pneumatic tire for motor vehicles having a plurality of zigzag grooves formed in its tread circumferentially thereof, the tire being characterized in that the bottom of each of the grooves is stepped to provide a deep groove bottom along one of the walls defining the groove and a shallow flat groove bottom along the other wall.