Granted Patent
Utility
US 6,579,937 · App. 09/868,516
Thermoplastic moulding materials
Inventors:
Norbert Güntherberg, Josef Wunsch, Peter Ittemann, Konrad Knoll, Norbert Niessner
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jun 18, 2001
Inventors
Norbert Güntherberg
Josef Wunsch
Peter Ittemann
Konrad Knoll
Norbert Niessner
Assignee (at issue)
BASF SE
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.