Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 22, 2007
Patent Application Number
11047445
Date Filed
January 31, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A sole assembly for an article of footwear comprises a midsole, a sole having a heel region, and a first wave spring disposed within a vacuity located within the heel region. The wave spring includes a top surface and a bottom surface. A plate, resting upon the top surface of the wave spring, is unsecured to the midsole and sized to permit movement within the vacuity along with the wave spring responsive to a rolling footstrike.
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