Granted Patent
Utility
US 5,822,415 · App. 08/753,880
Method for counting pay per use feature activations in CPE
Inventor:
Ian R. Gordon
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Dec 2, 1996
Inventor
Ian R. Gordon
Assignee (at issue)
Nortel Networks 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.