Granted Patent
Utility
US 5,974,138 · App. 09/231,534
System and method for detecting customer premises equipment alerting signals
Inventors:
Sharad Deepak Sambhwani, David G. Shaw
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jan 14, 1999
Inventors
Sharad Deepak Sambhwani
David G. Shaw
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.