Biased document backing
US9264571B2 · kind B2 · utility
0Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2007 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Dec 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0422
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A document backing extending in a plane is resiliently biased in a direction substantially parallel to the plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.