Granted Patent
Utility
US 6,728,339 · App. 10/222,183
Apparatus and method for E911 detection and callback monitoring
Inventors:
Dennis Kucmerowski, David Vander Meiden
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Aug 16, 2002
Inventors
Dennis Kucmerowski
David Vander Meiden
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.