Patent · US Expired

Putter head

US6471600B2 · kind B2 · utility

190Cited by

12References

10Claims

0Family size

Assignee

Callaway Golf Company · US

Inventors

Larry G. Tang · Carlsbad, US
Roger Cleveland · Los Angeles, US
Richard C. Helmstetter · Carlsbad, US
Augustin W. Rollinson · Carlsbad, US
Wayne H. Byrne · Murrieta, US
Luke R. Williams · Carlsbad, US

Key dates

Filing date	May 22, 2002
Grant date	Oct 29, 2002
Priority date	—
Expiry date	May 22, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA63B60/50
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A putter-type club head (20) having a central aperture (32) with a rearward center of gravity is disclosed herein. The putter-type club head (20) has a body (22) that is preferably composed of stainless steel. The body (22) has a face portion (24), a crown portion (26), a sole portion (28) and an aft-mass portion (30). The face portion (24), the crown portion (26), the sole portion (28) and the aft-mass portion (30) define the central aperture (32). The crown portion (26) extends rearward from the face portion (24) over the aft-mass portion (30). The central aperture (32) separates the crown portion (26) from the sole portion (28) and the face portion (24) from the aft-mass portion (30). The crown portion (26) has an alignment means (40) thereon for aiming a golf ball during putting.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.