Granted Patent
Utility
US 6,487,288 · App. 09/331,520
Intelligent network switching point and control point
Inventor:
Heikki Tuunanen
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Jun 22, 1999
Inventor
Heikki Tuunanen
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.