Granted Patent
Utility
US 5,821,385 · App. 08/877,830
Process for the preparation of N-(2-carboxy-5-chloro-phenyl)glycine
Inventors:
Stefan Krause, Doris Neumann-Grimm, Theodor Papenfuhs
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Jun 18, 1997
Inventors
Stefan Krause
Doris Neumann-Grimm
Theodor Papenfuhs
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.