Granted Patent
Utility
US 6,728,376 · App. 09/470,876
System for encrypting documents with stencils
Inventors:
R. Drews Dean, Matthew Franklin
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Dec 22, 1999
Inventors
R. Drews Dean
Matthew Franklin
Assignee (at issue)
Xerox 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.