Selectively balanced golf club heads and method of head selection

Patent 5755624 Issued on May 26, 1998. Estimated Expiration Date:

January 22, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

1269745

Golf club head apparatus
Patent #: 3976299
Issued on: 08/24/1976
Inventor: Lawrence , et al.

Method for custom fitting golf clubs
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Inventor: Davis

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Issued on: 03/16/1993
Inventor: Solheim

Wood type golf clubs
Patent #: 5251901
Issued on: 10/12/1993
Inventor: Solheim, et al.

Method of assembling a metal golf club head
Patent #: 5294037
Issued on: 03/15/1994
Inventor: Schmidt

Hollow, metallic golf club head with relieved sole and dendritic structure
Patent #: 5301945
Issued on: 04/12/1994
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Golf club head with weight pad
Patent #: 5310186
Issued on: 05/10/1994
Inventor: Karsten

More ...

Inventor

Helmstetter, Richard C.

Assignee

Callaway Golf Company

Application

No. 580479 filed on 01/22/1996

US Classes:

473/291, Mass distribution473/345, Hollow body473/349, Particular material composition or mass distribution473/409Method

Examiners

Primary: Passaniti, Sebastiano
Assistant: Blau, Stephen

Attorney, Agent or Firm

Haefliger; William W.

Foreign Patent References

210023 TW. 07/12/1993
218119 TW. 12/12/1993
253201 TW. 08/12/1995
266486 TW. 12/12/1995

International Class

A63B 053/04

Abstract

A golf club head comprising a shell having toe and heel portions; a front wall defining a forward facing ball-striking face; and top and bottom walls, the bottom wall being metallic and having at least one local zone of relatively greater thickness, remaining extent of the bottom wall having thickness substantially less than the local zone of relatively greater thickness.