Granted Patent
Utility
US 5,358,734 · App. 08/158,083
Process for producing a blue emitting lamp phosphor
Inventors:
Joseph J. Lenox, Albert K. Fan
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: Nov 24, 1993
Inventors
Joseph J. Lenox
Albert K. Fan
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.