Granted Patent
Utility
US 3,971,067 · App. 05/580,356
Automatic beam current limiter
Inventor:
Marvin Neil Norman
Patented Case
View Patent ↗
Granted: Jul 20, 1976
Filed: May 23, 1975
Inventor
Marvin Neil Norman
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.