Granted Patent
Utility
US 6,678,357 · App. 09/963,242
Internet protocol (IP) emergency connections (ITEC) telephony
Inventors:
Peggy M. Stumer, Robert Stampfl, Alfons Fartmann, Walter Hipfinger
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Sep 26, 2001
Inventors
Peggy M. Stumer
Robert Stampfl
Alfons Fartmann
Walter Hipfinger
Assignee (at issue)
Siemens Information and Communication Networks, Inc.
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.