Athletic shoe with Y support
US4676011A · kind A · utility
74Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | May 16, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B5/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An athletic shoe employs a pair of spring structures in such a way that an arm of a Y-shaped spring on one side of the ankle fastens under tension to a corresponding arm of a spring on the other side of the ankle. The springs are preferably of sheet material conforming to and affixed to the upper. The two springs may be formed as a wrap-around single member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.