Granted Patent
Utility
US 4,763,353 · App. 06/830,058
Terminal based adjunct call manager for a communication system
Inventors:
Leonard Mark Canale, Michael J. Collins, Paul J. O'Brien, Lisa Scott, Martin H. Singer
Patented Case
View Patent ↗
Granted: Aug 9, 1988
Filed: Feb 14, 1986
Inventors
Leonard Mark Canale
Michael J. Collins
Paul J. O'Brien
Lisa Scott
Martin H. Singer
Assignees (at issue)
American Telephone and Telegraph, Co.
AT&T Information 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.