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, 1991
Filed:
Sep. 26, 1989
Applicant:
Inventors:
Thomas H Yu, Richmond Heights, OH (US);
Ronald J Olwert, Concord Township, Lake County, OH (US);
Rolf S Bergman, Cleveland Heights, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01K / ;
U.S. Cl.
CPC ...
313579 ;
Abstract
Tungsten-halogen lamps operating at temperatures above 250.degree. C. which contain a mixture of phosphine, hydrogen, bromine and inert gas have been found to have superior life and lumen maintenance when the atomic ratio of phosphorus to bromine in the lamp is in the range of from 0.4-2.5.