Granted Patent
Utility
US 6,760,425 · App. 09/835,427
Interworking between services in telecommunications network
Inventor:
Heikki Tuunanen
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Apr 16, 2001
Inventor
Heikki Tuunanen
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.