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:
Sep. 28, 1999
Filed:
Nov. 08, 1996
Applicant:
Inventors:
Thomas F Soules, Richmond Heights, OH (US);
Joseph Darryl Michael, University Heights, OH (US);
David O Wharmby, Ilkley, GB;
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313635 ; 313113 ; 313493 ;
Abstract
An electrodeless fluorescent lamp having an envelope with an improved shape. The invented shape is shorter and the light-trapping area near the neck is substantially reduced or eliminated. The ratio of the operational width to the operational height of the envelope is preferably at least 1.5 and the reflector face angle is preferably less than 40.degree..