Granted Patent
Utility
US 6,115,821 · App. 09/103,749
Conditional access system, display of authorization status
Inventors:
Charles F. Newby, Michael V. Harding
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Jun 24, 1998
Inventors
Charles F. Newby
Michael V. Harding
Assignee (at issue)
TITAN COMPANY LIMITED
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.