Shoe sole with cushioning element capable of ensuring forced air circulation in the inner section of the shoe
US5974694A · kind A · utility
22Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | May 27, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
This patent application concerns a molded plastic sole with pliable pumping cushion which, as the person wearing the same walks, forces air into the shoe and through an evacuation chamber with which the sole is fitted and which is connected to the exterior by one or more breather holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.