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. 29, 1995
Filed:
Dec. 17, 1993
Applicant:
Inventors:
Takashi Maruko, Yokohama, JP;
Toshio Chikaraishi, Akishima, JP;
Assignee:
Bridgestone Sports, Co., Ltd. of 45, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273216 ; 273225 ; 273230 ;
Abstract
In a thread-wound golf ball comprising a solid center, a thread rubber layer and a cover, the solid center has a single structure and is continuously increased in hardness from its center to its outer surface such that the difference in hardness between the center and 2 mm inside the outer surface is at least about 4 in JIS C scale hardness. The ball is improved in hitting feel.