Granted Patent
Utility
US 5,901,201 · App. 08/856,309
Switch-based line continuity verification method and system
Inventor:
Jerome W. Schull
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: May 14, 1997
Inventor
Jerome W. Schull
Assignee (at issue)
BellSouth Corporation
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.