Energy return sole for footwear
US6944972B2 · kind B2 · utility
56Cited by
38References
18Claims
0Family size
Inventor
Key dates
| Filing date | Oct 7, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Nov 1, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/181
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.