Granted Patent
Utility
US 4,490,743 · App. 06/378,569
Intercarrier signal detection circuit for a television receiver
Inventors:
Victor G. Mycynek, Jouke N. Rypkema
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: May 17, 1982
Inventors
Victor G. Mycynek
Jouke N. Rypkema
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.