Granted Patent
Utility
US 4,463,385 · App. 06/394,422
Kinescope black level current sensing apparatus
Inventor:
Robert Preston Parker
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Jul 1, 1982
Inventor
Robert Preston Parker
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.