Granted Patent
Utility
US 4,947,429 · App. 07/442,474
Pay per view television signaling method
Inventors:
Charles B. Bestler, Richard W. Citta, Paul M. Gosc
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Nov 22, 1989
Inventors
Charles B. Bestler
Richard W. Citta
Paul M. Gosc
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.