Granted Patent
Utility
US 5,998,920 · App. 08/977,888
Conductive coating for the interior of a cathode ray tube
Inventor:
Sang Mun Kim
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Nov 25, 1997
Inventor
Sang Mun Kim
Assignee (at issue)
LG ELECTRONICS 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.