Granted Patent
Utility
US 4,993,063 · App. 07/289,810
Channel unit interface circuit
Inventor:
Frederick J. Kiko
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Dec 27, 1988
Inventor
Frederick J. Kiko
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.