Granted Patent
Utility
US 4,301,085 · App. 06/140,404
Process for the production of methyl-alkyl tin dichlorides
Inventors:
Wolfgang Wehner, Hans-Gunter Kostler
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Apr 14, 1980
Inventors
Wolfgang Wehner
Hans-Gunter Kostler
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.