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:
Jun. 17, 1980
Filed:
Apr. 27, 1978
Applicant:
Inventors:
Francois A Lavallee, Cleveland Heights, OH (US);
Raymond H Pritschau, Highland Heights, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548180 ; 548334 ; 25230128 ; 548224 ;
Abstract
A series of solid organic luminescent materials is disclosed comprising the condensation product of a substituted aromatic primary amine with an alkyl ester of a hydroxy aromatic acid having an alkyl group containing up to about 6 carbon atoms. The present organic phosphors can be excited with 3650 Angstrom radiation to provide efficient red color emission. A process for the preparation of these phosphors is also disclosed.