Granted Patent
Utility
US 5,342,903 · App. 08/055,656
Process for the preparation of adducts of epoxides and alcohols
Inventors:
Heinz Wolleb, Andreas Hafner, William M. Rolfe
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Apr 30, 1993
Inventors
Heinz Wolleb
Andreas Hafner
William M. Rolfe
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.