Granted Patent
Utility
US 6,593,403 · App. 09/694,861
Additive mixture for improving the mechanical properties of polymers
Inventors:
Dirk Simon, Rudolf Pfaendner, Andreas Steinert
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Oct 24, 2000
Inventors
Dirk Simon
Rudolf Pfaendner
Andreas Steinert
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.