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. 25, 1976
Filed:
Oct. 10, 1974
George A Kupsky, State College, PA (US);
Panel Technology, Inc., Lewistown, PA (US);
Abstract
There is disclosed an improved gaseous discharge display device having segmented electrodes, typically cathode electrodes, shaped in the form of segments of characters to be displayed, a viewing plate carrying an opposing electrode, typically an anode electrode, there being one such anode electrode for each character position to be displayed and a seal sealing the electrodes and a gaseous medium at glow discharge pressure therein. The cathode electrodes are a sputter resistant material selected from the group consisting of silicon carbide, tungsten boride, chromium boride, molybdenum boride and molybdenum disilicide, these sputter resistant materials being in powder form deposited upon the dielectric substrate to form at least some of the electrodes and in a preferred form, the sputter resistant material is applied as a coating to conventional precious metal electrodes such as silver.