Granted Patent
Utility
US 6,036,232 · App. 08/952,211
Data carrier with an optically variable element
Inventors:
Wittich Kaule, Reinhard Plaschka
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Mar 3, 1998
Inventors
Wittich Kaule
Reinhard Plaschka
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.