Shoe insole and the manufacture thereof
US4602442A · kind A · utility
32Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1983 |
| Grant date | Jul 29, 1986 |
| Priority date | — |
| Expiry date | Dec 12, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2437/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Shoe insoles comprise two layers of non-woven fibre fleece adhered to an impermeable plastics film. In preferred constructions at least one layer of woven reinforcing fabric is included and more than one plastics film layer may also be included in the insoles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.