Granted Patent
Utility
US 6,711,252 · App. 10/055,323
Method and system for implementing intermediary services in a telecommunication system
Inventor:
Kai Sahala
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Jan 22, 2002
Inventor
Kai Sahala
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.