Granted Patent
Utility
US 6,734,609 · App. 10/125,425
Cathode in CRT and method for fabricating the same
Inventor:
Byung Mook Weon
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Apr 19, 2002
Inventor
Byung Mook Weon
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.