Granted Patent
Utility
US 4,954,546 · App. 07/317,039
PVC resin blend compositions stabilized with lauryltin compounds
Inventors:
Gerd Abeler, Hans Sander
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Feb 28, 1989
Inventors
Gerd Abeler
Hans Sander
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.