Granted Patent
Utility
US 6,604,636 · App. 09/781,958
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Inventors:
Jaime Rosello Sallen, Bryan James Christophersen, John Skinner, Simon Calverley
Patented Case
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Granted: Aug 12, 2003
Filed: Feb 14, 2001
Inventors
Jaime Rosello Sallen
Bryan James Christophersen
John Skinner
Simon Calverley
Assignee (at issue)
DE LA RUE INTERNATIONAL LIMITED
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.