Granted Patent
Utility
US 4,591,915 · App. 06/601,595
Remote volume control by means of frequency modulation feedback loop
Inventors:
Mircho A. Davidov, Lance J. Katzfey
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Apr 18, 1984
Inventors
Mircho A. Davidov
Lance J. Katzfey
Assignee (at issue)
Oak Industries 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.