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:
Feb. 03, 2009
Filed:
Mar. 18, 2005
Applicants:
Jean-luc Ricaud, St. Ismier, FR;
Christian Galmiche, Auxonne, FR;
Philippe Arnaud, Bellefond, FR;
Inventors:
Assignee:
Thomson Licensing, Boulogne Billancourt, FR;
Primary Examiner:
Int. Cl.
CPC ...
H01J 29/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrode gun for a cathode-ray tube, including at least a first electrode and a second electrode for shaping and focusing the electron beam emitted by a cathode is described. These electrodes are made of a non-oxidizing alloy whose coefficient of expansion between 20° C. and 300° C. lies between 4×10/° C. and 13×10/° C.