Granted Patent
Utility
US 6,503,603 · App. 09/381,642
Printed document having a value and comprising a luminescent authenticity feature
Inventors:
Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Dec 10, 1999
Inventors
Wittich Kaule
Gerhard Schwenk
Gerhard Stenzel
Assignee (at issue)
GIESECKE & DEVRIENT GMBH
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.