Granted Patent
Utility
US 6,658,140 · App. 09/402,360
Method and arrangement for obtaining image information relating to surface structures
Inventors:
Juergen Hillmann, Uwe Richter
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Dec 16, 1999
Inventors
Juergen Hillmann
Uwe Richter
Assignee (at issue)
Heimann Biometric Systems 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.