Granted Patent
Utility
US 6,385,451 · App. 09/394,951
Handover between mobile communication networks
Inventors:
Juha Kalliokulju, Matti Turunen
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Sep 13, 1999
Inventors
Juha Kalliokulju
Matti Turunen
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.