Granted Patent
Utility
US 5,825,849 · App. 08/522,215
Loop-back test system using a suppressed ringing connection
Inventors:
Stuart Mandel Garland, David B. Smith
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Aug 31, 1995
Inventors
Stuart Mandel Garland
David B. Smith
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.