Shoe bottom for sports shoes
US4922631A · kind A · utility
195Cited by
12References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Jan 18, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The shank of a shoe bottom is stiffened by a stiffening member against bending in both directions about first and second axes transverse to the longitudinal axis of the shoe while permitting relative twisting movement of the front and rear sole portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.