Granted Patent
Utility
US 5,455,861 · App. 08/113,155
Secure telecommunications
Inventors:
David Faucher, Daniel Nelson Heer, Michael M. Kaplan, David P. Maher
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Aug 27, 1993
Inventors
David Faucher
Daniel Nelson Heer
Michael M. Kaplan
David P. Maher
Assignee (at issue)
AT&T CORP.
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.