Mattress
US4286344A · kind A · utility
61Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1979 |
| Grant date | Sep 1, 1981 |
| Priority date | — |
| Expiry date | Dec 21, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G7/0507
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mattress includes a pair of ridges made of elastomeric material and disposed respectively on both sides of an elastomeric layer which is laid on the top of a spring unit and covered with an outer covering, the ridges protruding from the elastomeric layer. Each ridge partially or fully extends in the longitudinal direction of the elastomeric layer. A user lying on the mattress is prevented from falling from the mattress by the ridges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.