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.:

US 7815521 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 19, 2010

Filed:

Dec. 01, 2006
Applicants:

Wataru Ban, Chichibu, JP;

Vinh-duy Thai Nguyen, Lake Forest, CA (US);

Inventors:

Wataru Ban, Chichibu, JP;

Vinh-Duy Thai Nguyen, Lake Forest, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 53/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a golf club head comprising, a face, a plurality of score line grooves formed in the face, traces formed in the face by milling; and a pair of side surfaces of the score line groove including a first surface that is contiguous with the face and a second surface that is contiguous with the first surface in the depth direction of the score line groove. A first angle that is formed by each first surface of the pair of side surfaces is larger than a second angle that is formed by each second surface of the pair of surfaces. The face in which the traces are formed has the arithmetic mean deviation of the profile (Ra) of not less than 4.00 μm.


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Ban, Wataru. (2010). Golf club head (U.S. Patent No. 7815521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7815521

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