Cushion
US6602579B2 · kind B2 · utility
39Cited by
23References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jul 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cushion having an underlying polyurethane foam or flexible layer which includes a non-plane surface, and an overlying visco-elastic foam layer positioned adjacent to the non-plane surface of the underlying layer, the cushion being adapted for suitably supporting a load, such as a human body, positioned thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.