Granted Patent
Utility
US 4,654,707 · App. 06/720,832
Method and apparatus for volume control of a BTSC multi-channel sound signal
Inventor:
Victor G. Mycynek
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Apr 8, 1985
Inventor
Victor G. Mycynek
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.