Granted Patent
Utility
US 4,161,594 · App. 05/541,911
Dialcohols
Inventors:
Hans Batzer, Jurgen Habermeier, Daniel Porret
Patented Case
View Patent ↗
Granted: Jul 17, 1979
Filed: Jan 17, 1975
Inventors
Hans Batzer
Jurgen Habermeier
Daniel Porret
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.