Granted Patent
Utility
US 6,745,628 · App. 10/206,234
Method and apparatus for testing thin material
Inventor:
Bernd Wunderer
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Jul 29, 2002
Inventor
Bernd Wunderer
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.