Granted Patent
Utility
US 4,630,268 · App. 06/646,384
Communication circuit loopback test apparatus
Inventor:
Stephan M. Rodenbaugh
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Aug 30, 1984
Inventor
Stephan M. Rodenbaugh
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.