Shoe with deflective and compressionable mid-sole
US4536974A · kind A · utility
118Cited by
10References
9Claims
0Family size
Inventor
Key dates
| Filing date | Nov 4, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Nov 4, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A shoe containing a plurality of pairs of transverse ribs provided between the mid-sole and the outer sole. All of the ribs are provided with at least one bowed or convex surface running the length of the rib. When weight is placed upon the sole, each of the ribs initially begins to deflect and then the ribs are compressed. The ribs begin to become compressed when one of each pair of the ribs would intrude upon an adjacent rib of a second pair of ribs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.