Granted Patent
Utility
US 6,777,866 · App. 10/315,988
Funnel structure of cathode ray tube
Inventors:
Hyeon-Soo Hong, Do Hoon Kim
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Dec 11, 2002
Inventors
Hyeon-Soo Hong
Do Hoon Kim
Assignee (at issue)
LG. Philips Displays Korea Co., Ltd.
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.