Granted Patent
Utility
US 5,659,088 · App. 08/456,839
Process for the preparation of 4-fluorothiophenol
Inventors:
Helmut Fiege, Ferdinand Hagedorn, Wolfgang Eymann, Otto Neuner, Herbert Muller
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 1, 1995
Inventors
Helmut Fiege
Ferdinand Hagedorn
Wolfgang Eymann
Otto Neuner
Herbert Muller
Assignee (at issue)
Bayer Aktiengesellschaft
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.