Article of footwear with lightweight sole assembly
US7941938B2 · kind B2 · utility
124Cited by
38References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Feb 20, 2030 |
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.