Projection screen apparatus
US6981350B1 · kind B1 · utility
21Cited by
81References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F19/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection screen apparatus is disclosed for displaying an image projected by a projector. The projection screen apparatus includes a collapsible frame and a removable display sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.