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:
Feb. 18, 1992
Filed:
Sep. 21, 1990
Applicant:
Inventor:
James N Lester, Essex, MA (US);
Assignee:
GTE Products Corporation, Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 84 ; 361 55 ; 361 91 ; 307127 ;
Abstract
A synchronized ballast for a discharge lamp having an increased dimming range. The ballast includes a combined overvoltage and reverse voltage protection device for an electronic circuit operable from a direct current supply is disclosed.