Granted Patent
Utility
US 5,261,002 · App. 07/850,593
Method of issuance and revocation of certificates of authenticity used in public key networks and other systems
Inventors:
Radia J. Perlman, Charles W. Kaufman
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Mar 13, 1992
Inventors
Radia J. Perlman
Charles W. Kaufman
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.