Granted Patent
Utility
US 6,403,664 · App. 09/883,673
Combination of metal salts of ricinoleic acid with reactive amines in producing polyurethane forms
Inventors:
Ralf Hoffmann, Hans-Heinrich Schlons
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jun 18, 2001
Inventors
Ralf Hoffmann
Hans-Heinrich Schlons
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.