Granted Patent
Utility
US 6,244,508 · App. 08/982,074
Document of value having two seperate corresponding data
Inventor:
Walter Straub
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Dec 1, 1997
Inventor
Walter Straub
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.