Granted Patent
Utility
US 6,424,719 · App. 09/363,674
Acoustic crosstalk cancellation system
Inventors:
Gary W. Elko, Darren Ward
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jul 29, 1999
Inventors
Gary W. Elko
Darren Ward
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.