Granted Patent
Utility
US 6,108,404 · App. 09/019,323
Method and system for testing a connection in a telephone network using interactive telephone response module
Inventors:
William Christopher Hardy, Earl L. Mannas
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Feb 5, 1998
Inventors
William Christopher Hardy
Earl L. Mannas
Assignee (at issue)
MCI Communications 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.