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:
Feb. 28, 1989
Filed:
Jun. 11, 1987
Jean J Collette, Bastogne, BE;
Pierre M Dauvister, Mersch, LU;
Bernard Jonette, Fischbach, LU;
Claude Lardo, Luxembourg, LU;
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A pneumatic tire (10) has a tread portion (11) comprising a plurality of circumferentially extending grooves (21,22,23) which divide the tread into axially spaced lands (24,25,26,27). Each land is subdivided into blocks (32X,32Y) by cross-slits (31). The blocks in each land (24,25,26,27) are arranged so that circumferentially adjacent blocks (32X,32Y) are axially offset relative to each other. The cross-slits (31A,31B,31C) in each land alternate circumferentially between axially extending cross-slits (31B) and biased angle cross-slits (31A,31C). The axially extending cross-slits (31B) are sipes and the biased angle cross-slits (31A,31C) may be either sipes or grooves.