Granted Patent
Utility
US 5,974,142 · App. 08/407,782
Secure telecommunications
Inventors:
Daniel Nelson Heer, Michael M. Kaplan, Joseph P. Randolph
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Mar 17, 1995
Inventors
Daniel Nelson Heer
Michael M. Kaplan
Joseph P. Randolph
Assignee (at issue)
LUCENT TECHNOLOGIES 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.