Granted Patent
Utility
US 3,947,787 · App. 05/536,350
Mechanical TV control unit
Inventor:
Patrick R. J. Court
Patented Case
View Patent ↗
Granted: Mar 30, 1976
Filed: Dec 26, 1974
Inventor
Patrick R. J. Court
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.