Granted Patent
Utility
US 5,889,770 · App. 08/718,512
Location updating for a packet-switched data service in a mobile communciation system
Inventors:
Timo Jokiaho, Markku Rautiola, Jari Hamalainen, Jussi Rajala
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: Oct 8, 1996
Inventors
Timo Jokiaho
Markku Rautiola
Jari Hamalainen
Jussi Rajala
Assignee (at issue)
Nokia Telecommunications Oy
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.