Granted Patent
Utility
US 6,226,793 · App. 09/546,116
Apparatus and method for allowing rating level control of the viewing of a program
Inventor:
Daniel S. Kwoh
Patented Case
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Granted: May 1, 2001
Filed: Apr 10, 2000
Inventor
Daniel S. Kwoh
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.