Exercise-enhancing walking shoe
US4934073A · kind A · utility
74Cited by
18References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jul 13, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Jul 13, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/187
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A walking shoe is provided between its outer and inner soles, and substantially hidden by the ramp at the instep and toe, with a reverse wedge, i.e., one which increases in thickness in the forward direction. The reverse wedge terminates forwards of the shoe heel. The reverse wedge and the sole of which it forms a part remain flexible. The objective is the provision of a shoe which enhances the amount of exercise provided to the wearer's foot and leg muscles while walking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.