Granted Patent
Utility
US 5,550,896 · App. 08/268,902
Authentication hierarchical structure of switching nodes for storage of authentication information
Inventor:
David Chavez
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Jun 30, 1994
Inventor
David Chavez
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.