| 发明名称 |
Footwear with enhanced cushioning |
| 摘要 |
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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| 申请公布号 |
US7444766(B2) |
申请公布日期 |
2008.11.04 |
| 申请号 |
US20040963885 |
申请日期 |
2004.10.12 |
| 申请人 |
ROCKY BRANDS WHOLESALE LLC |
发明人 |
MITCHELL DAVID P. |
| 分类号 |
A43B13/18;A43B13/38 |
主分类号 |
A43B13/18 |
| 代理机构 |
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代理人 |
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| 主权项 |
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