Granted Patent
Utility
US 4,739,205 · App. 06/832,613
Telephone signal multiplexing system
Inventor:
James L. Fuhrman
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Feb 24, 1986
Inventor
James L. Fuhrman
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.