Granted Patent
Utility
US 5,055,591 · App. 07/173,024
Process for the preparation of octahydropenta(b)pyrrole carboxylates
Inventors:
Hansjorg Urbach, Rainer Henning, Hans Wissmann, Volker Teetz
Patented Case
View Patent ↗
Granted: Oct 8, 1991
Filed: Mar 23, 1988
Inventors
Hansjorg Urbach
Rainer Henning
Hans Wissmann
Volker Teetz
Assignee (at issue)
Hoechst GmbH
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.