Granted Patent
Utility
US 5,756,840 · App. 08/763,512
Process for the preparation of a particularly pure monochloroacetic
Inventors:
Frank Ebmeyer, Detlef Kampmann, Ulf Otto Paulus-Von Russdorf, Rudolf Rossmeissl
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Dec 11, 1996
Inventors
Frank Ebmeyer
Detlef Kampmann
Ulf Otto Paulus-Von Russdorf
Rudolf Rossmeissl
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.