Athletic shoe and sole therefor
US4302892A · kind A · utility
155Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An athletic shoe having an upper, an outer sole, and an intermediate sole, the intermediate sole being made essentially of a peripheral portion extending the full length of the shoe and underlying the inner and outer peripheral sides and the periphery of the heel, and surrounding an inner core portion. The peripheral portion of the intermediate sole is made of a relatively hard closed cell foam and the core portion is made of a relatively soft closed cell foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.