Granted Patent
Utility
US 4,943,434 · App. 07/240,790
Insecticidal hydrogenated neem extracts
Inventor:
Zev Lidert
Patented Case
View Patent ↗
Granted: Jul 24, 1990
Filed: Sep 2, 1988
Inventor
Zev Lidert
Assignee (at issue)
Rohm and Haas 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.