Cushion
US6866915B2 · kind B2 · utility
71Cited by
23References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2003 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Mar 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A support cushion including a first underlying layer made from a flexible foam, at least one side of the first underlying layer being configured with a non-plane surface. The support cushion also includes a second underlying layer made from a flexible foam, at least one side of the second underlying layer being configured with a non-plane surface. The second underlying layer is placed in abutment with the first underlying layer. The support cushion further includes an overlying layer placed in abutment with the second underlying layer, the overlying layer being made from a visco-elastic foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.