Granted Patent
Utility
US 4,914,098 · App. 07/084,652
Substituted thioureas, isothioureas and carbodiimides and their use as pesticides
Inventors:
Manfred Boger, Jozef Drabek, Josef Ehrenfreund, Odd Kristiansen
Patented Case
View Patent ↗
Granted: Apr 3, 1990
Filed: Aug 12, 1987
Inventors
Manfred Boger
Jozef Drabek
Josef Ehrenfreund
Odd Kristiansen
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.