Granted Patent
Utility
US 6,263,790 · App. 09/332,842
Machine for security printing on security paper
Inventors:
Hans Wyssmann, Johann Emil Eitel, Kurt Georg Nagler, Johannes Georg Schaede
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Jun 14, 1999
Inventors
Hans Wyssmann
Johann Emil Eitel
Kurt Georg Nagler
Johannes Georg Schaede
Assignee (at issue)
De La Rue Giori S.A.
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.