Granted Patent
Utility
US 5,511,123 · App. 08/285,678
Symmetric cryptographic system for data encryption
Inventor:
Carlisle Adams
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Aug 4, 1994
Inventor
Carlisle Adams
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.