Granted Patent
Utility
US 6,137,950 · App. 08/279,628
Bar code matrix television calendar
Inventor:
Henry C. Yuen
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Jul 25, 1994
Inventor
Henry C. Yuen
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.