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:
Oct. 26, 1993
Filed:
Mar. 24, 1992
Applicant:
Inventors:
Glenn D Garbowicz, Rosemont, IL (US);
Edmond Daniel, Chicago, IL (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315 88 ; 315 90 ; 315 91 ; 315 92 ; 315 93 ; 315159 ;
Abstract
A lighting system having a primary light source and an emergency lamp. The emergency lamp is turned on and remains on upon failure or removal from the system of the primary light source. The system also includes a control device for sensing when the voltage across the primary light source rises above a predetermined level in determining when to turn on the emergency lamp.
Garbowicz, Glenn. (1993). Gaseous discharge lamp system with auxiliary lamp (U.S. Patent No. 5256946). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5256946
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile