Ceiling panel and lens
US4449344A · kind A · utility
5Cited by
7References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Jan 4, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B9/363
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ceiling panel having an elongated bottom face and an opening with opposite parallel edges, two moldings respectively having first portions engaging the edges and second portions spaced outwardly away from the portions and above the opening, and a lens placed on the moldings between the second portions, the lens being held in place by downwardly bent areas of the second portions while the moldings are held in place at the edges by the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.