Granted Patent
Utility
US 5,238,605 · App. 07/840,676
Process for the preparation of a stabiliser for halogen-containing polymers
Inventors:
Gerd Abeler, Reiner Fuchs, Kornelia Malzacher
Patented Case
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Granted: Aug 24, 1993
Filed: Feb 21, 1992
Inventors
Gerd Abeler
Reiner Fuchs
Kornelia Malzacher
Assignee (at issue)
Ciba-Geigy
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.