Granted Patent
Utility
US 4,288,719 · App. 06/018,907
CRT With means for suppressing arcing therein
Inventor:
Karl G. Hernqvist
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Mar 9, 1979
Inventor
Karl G. Hernqvist
Assignee (at issue)
RCA Corporation
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.