Patent Number: 6,309,310

Title: Wood-type golf club heads provided with vertical grooves on hitting surface

Abstract: A wood-type golf club head is provided with vertical grooves adjacent at each end of the ball hitting surface in order to enhance the desired gear effect when balls are hit on the toe and heel of the club.

Inventors: Shira; Chester S. (San Diego, CA)

Assignee: Carbite, Inc.

International Classification: A63B 53/04 (20060101); A63B 053/04 ()

Expiration Date: 10/30/2018