Granted Patent
Utility
US 6,830,637 · App. 10/160,751
Large diameter tungsten-lanthana rod
Inventors:
Ricky D. Morgan, Thomas J. Dixon, Harry D. Martin, III
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: May 31, 2002
Inventors
Ricky D. Morgan
Thomas J. Dixon
Harry D. Martin, III
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.