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:
Mar. 09, 1999
Filed:
May. 16, 1997
Applicant:
Inventors:
Neil Anthony Fox, Winchcombe, GB;
Peter Michael Tyler, Woodmancote, GB;
Assignee:
Smiths Industries Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313633 ; 313632 ; 313631 ; 313491 ;
Abstract
A cold cathode electrode for a discharge lamp has a metal substrate supporting a layer of diamond, so as to increase the electron yield of the electrode. The substrate may be a helical nickel wire with a layer of diamond forming it into a continuous tube.