Granted Patent
Utility
US 6,790,916 · App. 10/368,708
Process for the preparation of soft, low-shrinkage, thermoplastic polyurethane elastomers which can be easily released from the mold
Inventors:
Wolfgang Brauer, Herbert Heidingsfeld, Hans-Georg Hoppe, Hans-Georg Wussow, Eva Brigitte Eggeling, Wolfgang Rohrig
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Feb 19, 2003
Inventors
Wolfgang Brauer
Herbert Heidingsfeld
Hans-Georg Hoppe
Hans-Georg Wussow
Eva Brigitte Eggeling
Wolfgang Rohrig
Assignee (at issue)
Bayer Aktiengesellschaft
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.