Granted Patent
Utility
US 6,589,313 · App. 09/950,443
Process and apparatus for adding particulate solid material to molten metal
Inventors:
Jean-Francois Bilodeau, Laszlo Kiss, Carl Lakroni
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Sep 10, 2001
Inventors
Jean-Francois Bilodeau
Laszlo Kiss
Carl Lakroni
Assignee (at issue)
Alcan 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.