Granted Patent
Utility
US 4,518,986 · App. 06/454,446
Apparatus for accurate adjustment of kinescope black level bias
Inventors:
Werner Hinn, Hans-Rudolf Fecht
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Dec 29, 1982
Inventors
Werner Hinn
Hans-Rudolf Fecht
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.