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:
Apr. 29, 1997
Filed:
Dec. 30, 1994
Applicant:
Inventors:
Joseph J Lenox, Towanda, PA (US);
Richard I Manahan, Dushore, PA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; H01J / ;
U.S. Cl.
CPC ...
2523 / ; 427 67 ; 427 71 ; 313486 ; 313489 ;
Abstract
The maintenance of a fluorescent lamp containing terbium-activated cerium magnesium aluminate phosphor is improved by combining the phosphor with a small particle size aluminum oxide and wet-milling the phosphor/aluminum oxide mixture before applying the phosphor to the interior of a fluorescent lamp envelope.