Granted Patent
Utility
US 5,721,777 · App. 08/366,084
Escrow key management system for accessing encrypted data with portable cryptographic modules
Inventor:
Matthew A. Blaze
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Dec 29, 1994
Inventor
Matthew A. Blaze
Assignee (at issue)
LUCENT TECHNOLOGIES INC.
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.