Granted Patent
Utility
US 6,115,057 · App. 08/918,547
Apparatus and method for allowing rating level control of the viewing of a program
Inventors:
Daniel S. Kwoh, Roy J. Mankovitz
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Aug 22, 1997
Inventors
Daniel S. Kwoh
Roy J. Mankovitz
Assignee (at issue)
INDEX SYSTEMS, 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.