Granted Patent
Utility
US 5,220,557 · App. 07/765,157
Multiple use digital transmitter/transceiver with time multiplexing
Inventor:
Edwin A. Kelley
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Sep 23, 1991
Inventor
Edwin A. Kelley
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.