Granted Patent
Utility
US 6,131,160 · App. 09/288,986
Method and apparatus for an adapter card providing conditional access in a communication system
Inventors:
Douglas Dillon, Robert D. Cassagnol
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Apr 9, 1999
Inventors
Douglas Dillon
Robert D. Cassagnol
Assignee (at issue)
HUGHES ELECTRONICS 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.