Granted Patent
Utility
US 6,004,503 · App. 09/165,847
Method of making a ceramic arc tube for metal halide lamps
Inventor:
Jeffrey T. Neil
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Oct 2, 1998
Inventor
Jeffrey T. Neil
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.