Granted Patent
Utility
US 6,405,369 · App. 08/875,868
Smart card chaining in pay television systems
Inventor:
Yossef Tsuria
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Apr 3, 1998
Inventor
Yossef Tsuria
Assignee (at issue)
News Datacom 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.