Granted Patent
Utility
US 4,754,449 · App. 06/881,439
Wide bandwidth device for demodulating frequency division multiplexed signals
Inventor:
Rex J. Crookshanks
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Jul 2, 1986
Inventor
Rex J. Crookshanks
Assignee (at issue)
Hughes Aircraft Company
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.