Granted Patent
Utility
US 4,415,779 · App. 06/274,592
Methods of and apparatus for testing telephone subscriber loop to locate a fault relative to a reference point
Inventor:
Howard Bowman
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: Jun 15, 1981
Inventor
Howard Bowman
Assignee (at issue)
Western Electric Company, 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.