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. 20, 1981
Filed:
Oct. 29, 1979
Applicant:
Inventor:
Wolfgang Walter, Brookline, MA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313487 ;
Abstract
A fluorescent lamp having a high color rendering index and high efficacy comprises a glass envelope having electrodes at its ends and contains a fill including mercury and a starting gas, and a phosphor coating on the inner surface of the glass envelope, the phosphor coating comprising a blend of four narrow band emitting phosphors.