Granted Patent
Utility
US 4,209,808 · App. 06/023,964
Stabilized automatic brightness control network in a video signal processing system including an automatic kinescope beam current limiter
Inventor:
Leopold A. Harwood
Patented Case
View Patent ↗
Granted: Jun 24, 1980
Filed: Mar 26, 1979
Inventor
Leopold A. Harwood
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.