Granted Patent
Utility
US 5,471,002 · App. 08/292,723
Process for preparing trifluoromethylanilines
Inventors:
Wolfgang Appel, Gunter Siegemund
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Aug 18, 1994
Inventors
Wolfgang Appel
Gunter Siegemund
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.