Granted Patent
Utility
US 5,252,746 · App. 07/859,796
Process for the preparation of insecticidal, nematicidal and acaricidal 2-halo-3-substituted-5-arylpyrrole compounds
Inventor:
Gregory T. Lowen
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Mar 30, 1992
Inventor
Gregory T. Lowen
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.