Granted Patent
Utility
US 4,245,356 · App. 06/034,045
Frequency translator
Inventor:
Ben R. Hallford
Patented Case
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Granted: Jan 13, 1981
Filed: Apr 27, 1979
Inventor
Ben R. Hallford
Assignee (at issue)
Rockwell International 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.