Granted Patent
Utility
US 4,569,019 · App. 06/500,996
Video sound and system control circuit
Inventors:
David W. DiOrio, Bruce Ahrens, Robert Raible, Chaoynan E. Yang
Patented Case
View Patent ↗
Granted: Feb 4, 1986
Filed: Jun 3, 1983
Inventors
David W. DiOrio
Bruce Ahrens
Robert Raible
Chaoynan E. Yang
Assignee (at issue)
Commodore Business Machines, 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.