Granted Patent
Utility
US 4,646,133 · App. 06/683,437
Adaptive comb filter and interpolator
Inventors:
David L. Blanchard, Paul A. Snopko
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Dec 18, 1984
Inventors
David L. Blanchard
Paul A. Snopko
Assignee (at issue)
Zenith Electronics LLC
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.