Granted Patent
Utility
US 5,694,460 · App. 08/597,756
Circuit and method for reducing common mode interference in telephone instruments
Inventor:
Brian Albert Wittman
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Feb 7, 1996
Inventor
Brian Albert Wittman
Assignee (at issue)
LUCENT TECHNOLOGIES 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.