Granted Patent
Utility
US 5,596,568 · App. 08/459,668
Apparatus for protecting a telecommunications network from false alarm conditions due to T1 line signal interruption
Inventor:
Donald F. Fleshren
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Jun 2, 1995
Inventor
Donald F. Fleshren
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.