Shoe insole
US4680877A · kind A · utility
12Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Jun 26, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/38
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An insole structure having an outer contour corresponding to the shape of the sole of the foot has outer layers between which are located inner layers. The outer layers are made from a wear resistant material such as beechwood, and the inner layers are made from a lighter material such as poplar. The separately cut layers are glued together and shaped to form an anatomically contoured, substantially rigid structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.