The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2002
Filed:
Feb. 10, 2000
Applicant:
Inventor:
David Hubbell, Saranac Lake, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21W / ; F21K 2/00 ;
U.S. Cl.
CPC ...
F21W / ; F21K 2/00 ;
Abstract
An illuminated sign comprises a front lens having a sign legend; an electroluminescent panel disposed behind the lens to provide lighting to the sign legend; a power source operably connected to the electroluminescent panel; a first sensor responsive to the headlights of an approaching vehicle and connected to the electroluminescent panel to activate the electroluminescent panel upon detection of the headlights; and a second sensor responsive to ambient light and connected to the electroluminescent panel such that the electroluminescent panel is OFF during daylight.