Granted Patent
Utility
US 6,442,689 · App. 09/123,732
Apparatus and method for demonstrating and confirming the status of a digital certificates and other data
Inventor:
Paul C. Kocher
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Jul 28, 1998
Inventor
Paul C. Kocher
Assignee (at issue)
ValiCert, 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.