Granted Patent
Utility
US 6,765,343 · App. 10/163,297
Funnel in cathode ray tube
Inventor:
Byoung-Chul Kim
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Jun 7, 2002
Inventor
Byoung-Chul 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.