False ceiling or wall
US4083157A · kind A · utility
21Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 10, 1976 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | May 10, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44C7/022
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A false ceiling or wall comprising a frame which can be fixed to the edges of a ceiling or wall and is adapted to hold a sheet having a rigid edge. The frame includes a rail having an abutment thereon and shoulder forming a free space therebetween to receive a rigid edge of the sheet. The rigid edge of the sheet has a hook shape which engages the shoulder when in place, and the shoulder extends in a direction to that in which the sheet material exerts tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.