IP Library Granted Patent US 6,574,311
Granted Patent Utility
US 6,574,311 · App. 09/792,726

Apparatus and method for detecting a bridged tap and/or an end-of-line of a conventional telephone line using delay-line time-domain reflectometry

Inventors: Rebecca Ross, Regis J. Nero, Jr., Christopher S. Detka
Patented Case View Patent ↗
Granted: Jun 3, 2003 Filed: Feb 23, 2001
Inventors
Rebecca Ross
Regis J. Nero, Jr.
Christopher S. Detka
Assignee (at issue)
Tollgrade Communications, 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,574,311
App. No.
09/792,726
Filed
2001-02-23
Granted
2003-06-03
Kind
B1