Torsion system for an article of footwear
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United States of America Patent
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May 3, 2011
Grant Date -
Sep 20, 2001
app pub date -
Jun 9, 1999
filing date -
Jun 9, 1998
priority date (Note) -
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Abstract
An article of footwear includes a torsion system constructed of a material and configured to allow, in a pre-selected manner, rotation of a forefoot portion of the article of footwear relative to a rearfoot portion of the article of footwear about a longitudinal axis of the article while substantially precluding bending in an intermediate portion thereof.
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