Patent ID: 6160495
Filing Date: 2000-12-12
Classification: F21W,F21Y,G08G,G09F

Abstract:
An illuminated sign, comprising:a uniformly thick panel of solid transparent material having large area frontwardly and rearwardly facing surfaces;separate first and second elongated and continuous passageways in said panel oriented between said frontwardly and rearwardly facing surfaces, said first passageway being oriented uniformly adjacent said frontwardly facing surface and said second passageway being oriented uniformly adjacent said rearwardly facing surface, both of said first and second passageways being visible through at least one of said frontwardly facing surface and said rearwardly facing surface;an electrically energizable gas sealed in each passageway; andspaced electrodes in each of said passageways so that electrical energy selectively applied to said electrodes in one passageway will effect an electrical energization of said gas therein independent of an electrical energization of said gas in an other of said passageways.