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:
Jan. 17, 1978
Filed:
Sep. 08, 1976
Applicant:
Inventors:
Willem Lambertus Wanmaker, deceased, LATE OF Eindhoven, NL;
Lambertus Wilhelmus Manders, Eindhoven, NL;
Johannes Wilhelmus TER Vrugt, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313487 ;
Abstract
A fluorescent lamp requiring a smaller amount of luminescent material than is normally required. The luminescent layer is composed of component layers, the component layers which do not face the discharge contain a mixture of the luminescent material and a white pigment which reflects ultraviolet radiation.