Granted Patent
Utility
US 5,726,234 · App. 08/776,911
Stabilized PVDC-containing PVC
Inventors:
Heinz Herbst, Kurt Hoffmann, Rudolf Pfaendner
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Feb 12, 1997
Inventors
Heinz Herbst
Kurt Hoffmann
Rudolf Pfaendner
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.