Granted Patent
Utility
US 4,704,725 · App. 06/829,531
Signal processing apparatus and methods
Inventors:
John Christopher Harvey, James W. Cuddihy
Patented Case
View Patent ↗
Granted: Nov 3, 1987
Filed: Feb 14, 1986
Inventors
John Christopher Harvey
James W. Cuddihy
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.