Granted Patent
Utility
US 5,378,398 · App. 07/731,179
Method of treating europium activated strontium tetraborate phosphor
Inventors:
Anthony F. Kasenga, Joseph J. Lenox, John S. Tulk
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Jul 15, 1991
Inventors
Anthony F. Kasenga
Joseph J. Lenox
John S. Tulk
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.