Granted Patent
Utility
US 4,042,794 · App. 05/616,654
Method and means for detecting an outgoing failure in a bidirectional communications span and looping the same in response thereto
Inventors:
Paul J. Lima, Todd V. Townsend
Patented Case
View Patent ↗
Granted: Aug 16, 1977
Filed: Sep 25, 1975
Inventors
Paul J. Lima
Todd V. Townsend
Assignee (at issue)
Lynch Communications Systems, Inc.
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.