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:
May. 28, 1985
Filed:
Aug. 02, 1983
Applicant:
Inventors:
Burkhard Speit, Mainz-Mombach, DE;
Karl Mennemann, Taunusstein, DE;
Georg Gliemeroth, Mainz-Finthen, DE;
Assignee:
Schott Glaswerke, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
501 60 ; 313480 ; 252478 ; 501 56 ; 501 57 ; 501 58 ; 501 59 ; 501 61 ; 501 62 ; 501 63 ; 501 64 ; 501 74 ; 501 75 ; 501 76 ; 501 78 ;
Abstract
These objects have been attained by providing highly absorbent lead containing alkali metal silicate glasses for cathode ray tube image screens, having a linear absorption coefficient .mu. of >30 cm.sup.-1 (0.6 .ANG.) and with a high resistance to discoloration by X-ray and electron radiation, comprises, in weight percent: