Granted Patent
Utility
US 6,385,296 · App. 09/412,846
System to test a connection in a telephone network
Inventors:
William Christopher Hardy, Earl L. Mannas
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Oct 6, 1999
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.