Spring mattress
US5657500A · kind A · utility
12Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1996 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Apr 2, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/001
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Foldable spring mattress for divan-beds and the like, comprising at least one pair of elements (1a, 2a, 3a; 102, 103a) which are independent of one another and contain the springs (4) and the padding (6, 7, 8, 9, 10) and which are arranged adjacent to one another along their respective long edges (1b, 2b, 3b), said elements being joined together by means of stitches (11a) performed along the top edge of the same long sides and by means of a layer (12) of fabric attached to said elements along the external perimeter of the assembly and forming a single continuous upper closing surface for supporting the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.