Granted Patent
Utility
US 5,565,612 · App. 08/435,794
Substituted 2-chloro-3,4,5-trifluorobenzenes and a process for their preparation
Inventors:
Ralf Pfirmann, Thomas Schach
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: May 5, 1995
Inventors
Ralf Pfirmann
Thomas Schach
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.