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. 04, 2004
Filed:
Jun. 11, 2002
Applicant:
Inventors:
Robert Peter Scholl, Roetgen, DE;
Rainer Hilbig, Aachen, DE;
Achim Koerber, Kerkrade, NL;
Johannes Baier, Wuerselen, DE;
Thomas Juestel, Aachen, DE;
Peter J. Schmidt, Aachen, DE;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/720 ; H01J 6/112 ;
U.S. Cl.
CPC ...
H01J 1/720 ; H01J 6/112 ;
Abstract
A low-pressure gas discharge lamp having a gas discharge vessel containing a gas filling with a chalcogenide of the elements of the 4th main group of the periodic systems of elements and a buffer gas, and having inner or outer electrodes and means for generating and maintaining a low-pressure gas discharge.