Granted Patent
Utility
US 6,034,973 · App. 08/827,543
Subscriber loop extension system for
Inventor:
Lelon Wayne Sanderson
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Mar 28, 1997
Inventor
Lelon Wayne Sanderson
Assignee (at issue)
Digi International 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.