LED-illuminated outdoor sign
US6705033B1 · kind B1 · utility
19Cited by
4References
1Claims
0Family size
Inventors
Key dates
| Filing date | May 13, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jul 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0091
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A street sign sealed against weather elements during outdoor use consisting of an assemblage of panels, one of which is of unnotched and inwardly notched word-forming letter two portions of width of its acrylic plastic construction material, and peripheral LEDs optically arranged to illuminate by impingement said letters of said notched width portion rendered visible through said unnotched width portion which serves as a weather seal for said illuminated display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.