Energy return sole for footwear
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 20, 2005
Grant Date -
Jun 10, 2004
app pub date -
Oct 7, 2003
filing date -
Apr 9, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An article of footwear having an upper, an outsole defining a ground engaging surface, and a sole disposed between the upper and the outsole. The sole includes an energy return system having a first rigid plate, a second rigid plate spaced a predetermined distance from the first rigid plate, and at least one separating element disposed therebetween to maintain the spacing between the plates.
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