Granted Patent
Utility
US 5,905,340 · App. 08/971,702
High intensity discharge lamp with treated electrode
Inventors:
Rober J. Karlotski, Timothy Kelly, Galina Zilberstein
Patented Case
View Patent ↗
Granted: May 18, 1999
Filed: Nov 17, 1997
Inventors
Rober J. Karlotski
Timothy Kelly
Galina Zilberstein
Assignee (at issue)
OSRAM SYLVANIA Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.