Granted Patent
Utility
US 4,449,017 · App. 06/383,314
ACD Combined handset and headset arrangement
Inventors:
Edmund T. Burke, Joseph F. Catalano, James A. Henderson, Nicholas K. Smith
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: May 28, 1982
Inventors
Edmund T. Burke
Joseph F. Catalano
James A. Henderson
Nicholas K. Smith
Assignee (at issue)
Bell Telephone Laboratories, 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.