Granted Patent
Utility
US 5,463,148 · App. 08/238,582
Process for the preparation of chlorofluoronitrobenzenes
Inventors:
Theodor Papenfuhs, Andreas Kanschik-Conradsen, Wilfried Pressler
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: May 5, 1994
Inventors
Theodor Papenfuhs
Andreas Kanschik-Conradsen
Wilfried Pressler
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.