Granted Patent
Utility
US 6,146,773 · App. 08/660,854
Security document and method for producing it
Inventor:
Wittich Kaule
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jun 10, 1996
Inventor
Wittich Kaule
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.