Signs and displays having easily interchangeable information panels
US5809677A · kind A · utility
14Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F11/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sign wherein individual film panels bearing graphical information are interconnected as an uninterrupted web by way of interconnecting plastic zippers. The web, which is composed of a series of film panel transparencies, is wound and unwound from spaced apart rollers for presenting the individual panels for viewing through a window in a housing. The concept of releasably interconnecting film panels is also used in stationary signs such as menu boards in fast food restaurants to provide for easy interchange of the panels when it is desired to present different menu items and prices, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.