Box spring support for mattresses
US8555435B1 · kind B1 · utility
1Cited by
18References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2013 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Feb 6, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C23/043
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A box spring (9) having a rigid perimeter wall (16) to provide a firm foundation to support an edge of a mattress (1) where individuals normally sit. A layer of coil springs (20) rests on a center portion (2) of the box spring and extends above the rigid perimeter wall to provide active support to a center portion of the mattress where individuals normally lie.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.