Granted Patent
Utility
US 6,051,920 · App. 09/028,993
Focusing electrode in electron gun for color cathode ray tube
Inventors:
Hyun Cheol KIM, Ki Bog Son
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Feb 25, 1998
Inventors
Hyun Cheol KIM
Ki Bog Son
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.