Granted Patent
Utility
US 6,392,194 · App. 09/550,792
Process for the MIG welding of aluminium and its alloys in pulsed mode or unmodulated-spray mode
Inventors:
Jean-Marie Fortain, Philippe Lefebvre, Gerard Plottier
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Apr 17, 2000
Inventors
Jean-Marie Fortain
Philippe Lefebvre
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.