Granted Patent
Utility
US 4,612,378 · App. 06/610,145
Process for the preparation of .beta.-(benzothiazolylthio)- and .beta.-(benzimidazolylthio-carboxylic acids
Inventors:
Hans Bosshard, Hans Greuter
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: May 14, 1984
Inventors
Hans Bosshard
Hans Greuter
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.