Granted Patent
Utility
US 5,281,740 · App. 07/923,955
Process for the preparation of 3'-aminopropyl 2-sulfatoethyl sulfone
Inventors:
Michael Meier, Heinrich Angenendt
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Sep 4, 1992
Inventors
Michael Meier
Heinrich Angenendt
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.