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. 22, 1991
Filed:
Dec. 22, 1989
Applicant:
Inventors:
Assignee:
GTE Products Corporation, Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; H01J / ;
U.S. Cl.
CPC ...
315 56 ; 315 58 ; 315235 ; 315260 ;
Abstract
A negative glow discharge lamp, which includes a light transmitting envelope containing a noble gas film material and a pair of electrodes disposed in the envelope. Ballast capacitors are placed within the base of the lamp and preferably within a cavity formed within the wall of the base surrounding a necked-down portion of the envelope.