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:
Jan. 23, 1990
Filed:
Dec. 28, 1988
Applicant:
Inventors:
Kurt M Tischer, Wendlingen, DE;
Uwe Mayer, Kirchheim/Teck, DE;
Assignee:
Nokia Unterhaltungselektronik, Pforzheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315366 ; 3151691 ; 313422 ;
Abstract
In a flat, vacuum-enclosed picture-reproducing device having a phosphor-coated glass faceplate and a shallow tray-shaped rear housing in which a cathode consisting of a periodic array of oxide-coated heating wires is located in front of a counterelectrode, and which contains a control arrangement between the cathode and the faceplate, a perforated anode is present between the heating wires and the control arrangement, which consists of two layers of electrodes, and the counterelectrode has segments arranged perpendicular to the longitudinal dimension of the oxide-coated heating wires.