Insole with exchangeable reliant pieces
US4557060A · kind A · utility
109Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An insole for a sports shoe comprises an insole body of foam synthetic resin having recesses formed therein at the forefoot and heel areas. Corresponding pieces are of material having higher durometer hardness than that of the insole body and inserted in the recesses to provide good properties required for various kinds of sports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.