Portable projection screen assembly
US7619814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2006 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Feb 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A portable screen assembly includes a first side support connected to a fabric, a second side support connected to the fabric, and a center support assembly. An expandable support brace is also included in the portable screen assembly. The expandable support brace is connected to the center support assembly, the first side support, and the second side support. A portable screen assembly capable of reproducing sound includes a first side support, a second side support, and a center support assembly. A speaker capable of reproducing sound is incorporated within at least one of the first side support, the second side support, and the center support assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.