Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 14, 2010
Patent Application Number
11649418
Date Filed
January 4, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
Shoe sole that promotes a natural walking gait by promoting the natural step motion of a barefoot person walking in sand. The shoe sole has is a single-shot injection molded sole that has a continuously, irregularly curved lower surface and a multi-contoured upper surface. The lower surface has a radius of curvature in the heel area that is smaller than the radius of curvature in the toe area. The upper surface has an arch support, a depression for cradling the ball of the foot, and flex zones that promote flexing of the shoe sole in the longitudinal and transverse direction.
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