Granted Patent
Utility
US 6,184,617 · App. 08/359,551
Electron guns for precluding distortion of beam spots
Inventor:
Jin Yeol Choi
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Dec 19, 1994
Inventor
Jin Yeol Choi
Assignee (at issue)
Goldstar 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.