Granted Patent
Utility
US 5,225,568 · App. 07/981,626
Process for the preparation of insecticidal, acaricidal and nematicidal 2-aryl-3-substituted-5-(trifluoromethyl)pyrrole compounds
Inventor:
Venkataraman Kameswaran
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Nov 25, 1992
Inventor
Venkataraman Kameswaran
Assignee (at issue)
American Cyanamid Company
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.