Mattress
US3956783A · kind A · utility
10Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Oct 21, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/682
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress is formed of a core element and a covering. The covering comprises a nonwoven fabric which is formed by needle punching batts of thermoplastic staple. One side of the needle punched batt is heated to fuse the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.