Granted Patent
Utility
US 6,444,007 · App. 09/511,216
Production of metal foams
Inventors:
Wilfried Knott, Andreas Weier
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Feb 23, 2000
Inventors
Wilfried Knott
Andreas Weier
Assignee (at issue)
GOLDSCHMIDT HOLDING GMBH
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.