Granted Patent
Utility
US 6,808,613 · App. 10/018,709
Oxidizing electrolytic method for obtaining a ceramic coating at the surface of a metal
Inventor:
Jacques Beauvir
Patented Case
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Granted: Oct 26, 2004
Filed: Mar 27, 2002
Inventor
Jacques Beauvir
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.