Steven E Grossbard

US Patent:

7396292, Jul 8, 2008

Filed:

Jul 10, 2007

Appl. No.:

11/827229

Inventors:

Steven Grossbard - Beverly Hills CA, US

International Classification:

A63B 53/04

US Classification:

473325, 473330, 473340

Abstract:

A golf putter having a shaft and a putting head connected to the shaft, where the putting head has a first contact surface, a rear wall, a top surface, and a sole. The first contact surface has a concave, partially-spherical face. In a version of the invention, the first contact surface has a first concave, cylindrical face instead of the partially-spherical face. Some versions have a second contact surface opposite the first contact surface. The first contact surface and the second contact surface may have a partially-spherical face, a cylindrical face, or a combination of the two faces. In embodiments with two contact surfaces, the shaft is configured to be reversible such that either contact surface can be used.

US Patent:

8597136, Dec 3, 2013

Filed:

Mar 8, 2013

Appl. No.:

13/791158

Inventors:

Steven Grossbard - Beverly Hills CA, US

International Classification:

A63B 53/04

US Classification:

473325, 473329, 473340

Abstract:

A golf putter having a shaft and a putting head connected to the shaft, where the putting head is configured with one or more flat faces to emit different sounds depending on whether the golfer has hit the sweet spot of the putter. In addition, the putter may have concave faces as an alternative means for training the golfer to hit the sweet spot of the putter.

US Patent:

7264557, Sep 4, 2007

Filed:

Jan 10, 2007

Appl. No.:

11/651866

Inventors:

Steven Grossbard - Beverly Hills CA, US

International Classification:

A63B 53/04

US Classification:

473325, 473330, 473340

Abstract:

A golf putter having a shaft and a putting head connected to the shaft, where the putting head has a first contact surface, a rear wall, a top surface, and a sole. The first contact surface has a concave, partially-spherical face. In a version of the invention, the first contact surface has a first concave, cylindrical face instead of the partially-spherical face. Some versions have a second contact surface opposite the first contact surface. The first contact surface and the second contact surface may have a partially-spherical face, a cylindrical face, or a combination of the two faces. In embodiments with two contact surfaces, the shaft is configured to be reversible such that either contact surface can be used.