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Putter head

  • US 8,287,401 B2
  • Filed: 10/31/2007
  • Issued: 10/16/2012
  • Est. Priority Date: 11/28/2006
  • Status: Expired due to Fees
First Claim
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1. A golf club comprising:

  • a putter head comprising;

    a face;

    a first group of grooves which are mutually-parallel grooves; and

    a second group of grooves which differ in depth from the first group of grooves,wherein the face includes the first group of grooves and the second group of grooves, andwherein a ratio W/S between a width W (mm) of grooves of the first group and a pitch S (mm) between the grooves of the first group ranges from 0.5 to 2.0;

    wherein the face is formed from an insert material which differs from a material of a main body; and

    a second insert material is made of a synthetic resin having Shore A hardness falling within a range from 90 to 98.

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