Granted Patent
Utility
US 5,809,413 · App. 08/769,541
Over the air locking of user identity modules for mobile telephones
Inventors:
Paul S. Meche, Ahti Vaisanen
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: Dec 19, 1996
Inventors
Paul S. Meche
Ahti Vaisanen
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.