Granted Patent
Utility
US 6,456,331 · App. 09/728,413
Method and apparatus for displaying textual or graphic data on the screen of television receivers
Inventor:
Daniel S. Kwoh
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Dec 1, 2000
Inventor
Daniel S. Kwoh
Assignee (at issue)
Gemstar Development Corporation
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.