Footwear with enhanced cushioning
US7444766B2 · kind B2 · utility
10Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jan 27, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B23/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.