Granted Patent
Utility
US 6,643,513 · App. 10/241,276
Method and apparatus for providing immediate ciphering after an inter-system UTRAN-GSM handover
Inventors:
Juha Timonen, Pasi Laitinen
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Sep 10, 2002
Inventors
Juha Timonen
Pasi Laitinen
Assignee (at issue)
Nokia
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.