Portable projection screen assembly
US7612938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2006 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Feb 1, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A portable screen assembly includes a first side support assembly connected to a fabric, a second side support assembly connected to the fabric, and a center support assembly. The first side support assembly has a first engagement subassembly fastened to the first side support assembly and the second side support assembly has a second engagement subassembly fastened to the second side support assembly. The center support assembly has a first receiving subassembly to receive a first engagement tab of the first engagement subassembly and also has a second receiving subassembly to receive a first engagement tab of the second engagement subassembly. The first receiving subassembly, the second receiving subassembly, the first engagement subassembly, and the second engagement subassembly hold the first side support assembly and the second side support assembly to the center support assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.