Granted Patent
Utility
US 6,744,871 · App. 09/852,703
Method for routing service calls in a telecommunication network, as well as a telecommunication network, switching center and program module therefor
Inventors:
Wolfgang Lautenschlager, Hartmut Weik, Heike Felbecker-Janho
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: May 11, 2001
Inventors
Wolfgang Lautenschlager
Hartmut Weik
Heike Felbecker-Janho
Assignee (at issue)
ALCATEL
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.