Anti-friction two-ply athletic sock
US4843844A · kind A · utility
40Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Mar 23, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD10B2403/023
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A knit sock, especially for jogging or other athletic activity, has a foot portion which includes an inner ply having a first inner surface formed to make relatively high frictional contact with the skin of the wearer and a second, outer surface having relatively low frictional characteristics. The inner ply is inserted within and fixed to an outer ply which includes a first inner surface having relatively low frictional characteristics disposed adjacent said second surface of said first ply and a second, outer surface having a relatively high frictional surface adapted to make contact with the interior of a shoe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.