Granted Patent
Utility
US 5,463,135 · App. 08/147,826
Fluorinated benzils and a process for their preparation
Inventors:
Andreas Kanschik-Conradsen, Theodor Papenfuhs
Patented Case
View Patent ↗
Granted: Oct 31, 1995
Filed: Nov 4, 1993
Inventors
Andreas Kanschik-Conradsen
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.