Stranded mattress spring
US6944899B2 · kind B2 · utility
22Cited by
29References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2003 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Oct 15, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21F35/003
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress construction with a multi-strand coil spring is disclosed. The multi-strand coil spring can be designed with the same performance characteristic as a conventional solid wire coil spring, but at a lower manufacturing and material cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.