Granted Patent
Utility
US 6,656,889 · App. 09/955,785
Thermoplastic molding compositions containing additive mixtures
Inventor:
Herbert Eichenauer
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Sep 18, 2001
Inventor
Herbert Eichenauer
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.