Shoes and sole springs for shoes
US11793270B2 · kind B2 · utility
0Cited by
18References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2020 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jun 25, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/184
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A shoe has a shoe upper configured to receive a foot of a user, a sole coupled the shoe upper and having a cavity, and a sole spring in the cavity. The sole spring has a first leg and an opposite second leg, and the sole spring is removably positioned in the cavity. Accordingly, when the user presses the shoe into contact with a support surface, the first leg and the second leg flex toward each other thereby cushioning the foot of the user, and when the user moves the shoe away from the support surface the first leg and the second flex away from each other thereby propelling the user away from the support surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.