Granted Patent
Utility
US 5,495,470 · App. 08/157,899
Alarm correlation system for a telephone network
Inventors:
Edward Tyburski, Paul R. Hartmann
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Nov 23, 1993
Inventors
Edward Tyburski
Paul R. Hartmann
Assignee (at issue)
Applied Digital Access, 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.