Roll-up sign
US4103445A · kind A · utility
42Cited by
13References
11Claims
0Family size
Inventors
Key dates
| Filing date | Sep 2, 1976 |
| Grant date | Aug 1, 1978 |
| Priority date | — |
| Expiry date | Sep 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F7/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable sign assembly comprising a rigid knockdown frame and a flexible display web. In a collapsed condition elements of the sign assembly afford a relatively small package size which is conveniently handled and economically shipped. The sign is quickly assembled and disassembled by simple manipulation of the frame elements. In accordance with an important aspect of the invention, the display web is provided with relatively high elastic elongation properties and the frame is arranged to slightly stretch the web to thereby completely tension it and ensure that it is drawn into a planar configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.