Granted Patent
Utility
US 6,444,059 · App. 08/875,113
Product for a welded construction made of AlMgMn alloy having improved mechanical strength
Inventors:
Guy-Michel Raynaud, Jean-Luc Hoffmann, Laurent Cottignies, Georges Pillet
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Jul 25, 1997
Inventors
Guy-Michel Raynaud
Jean-Luc Hoffmann
Laurent Cottignies
Georges Pillet
Assignee (at issue)
Pechiney Rhenalu
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.