Granted Patent
Utility
US 4,897,486 · App. 07/212,028
5-trifluoromethylpyridyl-2-oxy-4-fluoroanilines as intermediates
Inventor:
Manfred Boger
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jun 23, 1988
Inventor
Manfred Boger
Assignee (at issue)
Ciba-Geigy
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.