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:
Jul. 17, 2001
Filed:
Sep. 15, 1998
Applicant:
Inventors:
Tom Van Zutphen, Eindhoven, NL;
Frederik C. Gehring, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/100 ;
U.S. Cl.
CPC ...
H01J 3/100 ;
Abstract
Cathode ray tube comprising an electron gun which is constructed in such a way that the gas pressure near the electron-emissive layer (,) of the cathode is lower than in the other parts of the tube. This can be achieved by reducing the aperture between the G,(,) and G,(,), by providing the G,(,) with a skirt (,). The wall of the skirt, the G,and the G,may also be at least partly coated with a getter (,).