Granted Patent
Utility
US 5,841,848 · App. 08/646,445
System and method for completing telephone calls to emergency telephone numbers in highly concentrated access systems
Inventor:
James Patrick Dunn
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: May 7, 1996
Inventor
James Patrick Dunn
Assignee (at issue)
LUCENT TECHNOLOGIES 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.