Watermattress apparatus
US5513401A · kind A · utility
6Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/085
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A watermattress apparatus has a cushion body which is elastically compressed when a load has been exerted thereon. A case is laminated on the upper surface of the cushion body. The case has upper and lower surfaces and a receiving portion opening to the upper surface. A water bag formed of a flexible waterproof sheet and containing a liquid therein is received in the receiving portion. An envelope covers the laminated cushion body and case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.