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:
Dec. 21, 1982
Filed:
Mar. 10, 1980
Applicant:
Inventors:
Malcolm Higton, London, GB;
Aron Vecht, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ;
U.S. Cl.
CPC ...
313503 ; 29 2511 ; 29 2513 ; 2523 / ; 2523 / ; 313506 ; 313509 ; 427 12 ; 427 64 ; 427 66 ; 427157 ;
Abstract
This invention provides phosphors for use in electroluminescent devices. Each phosphor contains a dopant and at least one of the sulphides of the group consisting of strontium, calcium, barium and magnesium sulphide.