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:
Jun. 16, 1998
Filed:
Jan. 21, 1997
Applicant:
Inventor:
Hideaki Kawamatsu, Miyakonojo, JP;
Assignee:
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473290 ; 473331 ;
Abstract
A set of golf clubs including a number of golf clubs which are numbered serially and having progressively increasing loft angles from long irons to short irons. In a cross section of a number of face line grooves arranged on a striking face, the striking face and a groove slope face form a corner portion having a cross-sectional angle which decreases gradually from the long irons to the short irons.