Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 23, 2013
Patent Application Number
12571327
Date Filed
September 30, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An article of footwear includes a sole having a forefoot portion, a heel portion and an outsole having a bottom surface including a primary ground contacting surface. The bottom surface of the outsole includes a forefoot bulge and a heel bulge which provide the footwear with controlled instability for providing dynamic conditioning of the wearer's muscles during the gait cycle.
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