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.

Date of Patent:
Jan. 07, 2003

Filed:

Feb. 09, 2001
Applicant:
Inventors:

Takashi Maruko, Saitama, JP;

Hisashi Yamagishi, Saitama, JP;

Yutaka Masutani, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B 3/706 ;
U.S. Cl.
CPC ...
A63B 3/706 ;
Abstract

A golf ball includes a core, an intermediate layer, and a cover. At a boundary between the core and the intermediate layer or at a boundary between the intermediate layer and the cover, convex ribs are formed in a network pattern on a first layer such that the convex ribs intrude into a second layer. In addition, columnar projections are formed on the first layer at positions corresponding to the nodes of the network pattern such that the columnar projections intrude into the second layer deeper than the convex ribs.


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