Golf ball

Games using tangible projectile – Golf – Ball

Reexamination Certificate

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Reexamination Certificate

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07086967

ABSTRACT:
A golf ball comprising a core, an intermediate layer, and a cover exhibits a good profile of rebound, feel and durability suited for low head speed amateur players when it satisfies the requirements that (Shore D hardness of the cover)−(Shore D hardness of the intermediate layer)>0, (initial velocity (in m/s) of the core enclosed with the intermediate layer)−(initial velocity (in m/s) of the core) >0, 0.90≦(Deflection amount of the core enclosed with the intermediate layer)/(Deflection amount of the core)≦1.00, and the total thickness (in mm) of the intermediate layer and the cover is up to 3.0 mm.

REFERENCES:
patent: 5306760 (1994-04-01), Sullivan
patent: 5312857 (1994-05-01), Sullivan
patent: 5830085 (1998-11-01), Higuchi et al.
patent: 5935022 (1999-08-01), Sugimoto et al.
patent: 5967908 (1999-10-01), Yamagishi et al.
patent: 6213896 (2001-04-01), Higuchi et al.
patent: 6514158 (2003-02-01), Nakamura et al.
patent: 2001/0016522 (2001-08-01), Watanabe et al.
patent: 2001/0031669 (2001-10-01), Ohama
patent: 2004/0198534 (2004-10-01), Sasaki
patent: 09-313643 (1997-12-01), None
patent: 10-305114 (1998-11-01), None
patent: WO 98/46671 (1998-10-01), None

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