Granted Patent
Utility
US 6,084,957 · App. 08/952,043
Method for setting up a telephone connection and an exchange system
Inventors:
Petri Jyvala, Jouni Kinnunen
Patented Case
View Patent ↗
Granted: Jul 4, 2000
Filed: Nov 4, 1997
Inventors
Petri Jyvala
Jouni Kinnunen
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.