Granted Patent
Utility
US 4,231,009 · App. 05/938,243
Deflection yoke with a magnet for reducing sensitivity of convergence to yoke position
Inventor:
William H. Barkow
Patented Case
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Granted: Oct 28, 1980
Filed: Aug 30, 1978
Inventor
William H. Barkow
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.