Granted Patent
Utility
US 5,159,229 · App. 07/628,313
Metal halide lamp having CO in gas fill
Inventors:
Edmund M. Passmore, William M. Keeffe
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 17, 1990
Inventors
Edmund M. Passmore
William M. Keeffe
Assignee (at issue)
GTE Products Corporation
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.