Granted Patent
Utility
US 6,586,700 · App. 09/886,138
Process for the MIG welding of aluminum and its alloys with a shielding gas of the Ar/He/O2 type
Inventors:
Jean-Marie Fortain, Philippe Lefebvre, Jean-Yves Mouton, Gerard Plottier
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Jun 22, 2001
Inventors
Jean-Marie Fortain
Philippe Lefebvre
Jean-Yves Mouton
Gerard Plottier
Assignee (at issue)
L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude
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.