Granted Patent
Utility
US 6,479,133 · App. 09/381,639
Document having a value
Inventors:
Wittich Kaule, Gerhard Stenzel
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 7, 2000
Inventors
Wittich Kaule
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.