Footwear with enhanced cushioning
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United States of America Patent
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Nov 4, 2008
Grant Date -
Apr 13, 2006
app pub date -
Oct 12, 2004
filing date -
Oct 12, 2004
priority date (Note) -
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Abstract
Footwear includes an insole of low density polyurethane and an integral border for attaching the insole to the upper and having an integral support surface for attaching a steel shank. The footwear includes the insole and two contiguous cushioning layers.
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