Footwear having a variable sized interior
US5937543A · kind A · utility
14Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1997 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Aug 22, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B3/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A variable size footwear includes a sole, an upper fixed to the sole and an nsole overlying the sole within the upper. An inner sock of elastic material is fixed to the sole and/or insole. The sock in an unstressed state is smaller than the upper, but is expandable to a size conforming to interior walls of the upper. The sock is fixed at an upper edge thereof to the upper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.