Granted Patent
Utility
US 5,497,421 · App. 08/314,181
Method and apparatus for protecting the confidentiality of passwords in a distributed data processing system
Inventors:
Charles W. Kaufman, Morrie Gasser, Butler W. Lampson, Joseph Tardo, Kannan Alagappan
Patented Case
View Patent ↗
Granted: Mar 5, 1996
Filed: Sep 28, 1994
Inventors
Charles W. Kaufman
Morrie Gasser
Butler W. Lampson
Joseph Tardo
Kannan Alagappan
Assignee (at issue)
Digital Equipment Corporation
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.