Granted Patent
Utility
US 4,489,347 · App. 06/413,003
Sine-wave decoding technique
Inventor:
Michael L. Tentler
Patented Case
View Patent ↗
Granted: Dec 18, 1984
Filed: Aug 30, 1982
Inventor
Michael L. Tentler
Assignee (at issue)
Zenith Radio 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.