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. 17, 1988
Filed:
Mar. 12, 1987
Applicant:
Inventor:
Kurt-Manfred Tischer, Wendlinger, DE;
Assignee:
Standard Elektrik Lorenz A. G., Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313422 ; 313495 ;
Abstract
Control plates in flat picture-reproducing devices are located between the cathode and the screen and serve to control the electron flow. Control plates are formed of layers of metal conductors having overlying openings. The width of the openings decreases with depth from both surfaces of the conductors. The openings can be formed by pairs of juxtaposed recesses formed in the sides of adjacent conductors.