Granted Patent
Utility
US 4,451,705 · App. 06/383,315
Call completion circuit and method
Inventors:
Edmund T. Burke, Patrick Gorman, James A. Henderson, Nicholas K. Smith
Patented Case
View Patent ↗
Granted: May 29, 1984
Filed: May 28, 1982
Inventors
Edmund T. Burke
Patrick Gorman
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.