Granted Patent
Utility
US 5,708,041 · App. 08/800,753
Foamable molding compositions
Inventors:
Helmut Scheckenbach, Axel Schonfeld, Siegfried K. Weis
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Feb 14, 1997
Inventors
Helmut Scheckenbach
Axel Schonfeld
Siegfried K. Weis
Assignee (at issue)
Hoechst 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.