Article of footwear with lightweight sole assembly
US8809408B2 · kind B2 · utility
4Cited by
38References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Sep 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An article of footwear includes an upper and a sole assembly secured to the upper. The sole assembly includes a first portion having a lower ground engaging surface, an upper surface, and a recess formed in the upper surface. The upper surface of the first portion is in contact with the upper. A second portion is seated in the recess in the first portion and has an upper surface, with the upper surface of the second portion being in contact with the upper. The second portion comprises a foam material having a density less than 0.25 g/cm3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.