Granted Patent
Utility
US 5,909,491 · App. 08/744,682
Method for sending a secure message in a telecommunications system
Inventor:
Tie Luo
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Nov 6, 1996
Inventor
Tie Luo
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.