Granted Patent
Utility
US 6,332,028 · App. 09/055,709
Dual-processing interference cancelling system and method
Inventor:
Joseph Marash
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Apr 7, 1998
Inventor
Joseph Marash
Assignee (at issue)
Andrea Electronics Corporation
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.