Granted Patent
Utility
US 4,469,688 · App. 06/393,552
Pesticidal cyano enol phosphates
Inventor:
Themistocles D. J. D'Silva
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Jun 30, 1982
Inventor
Themistocles D. J. D'Silva
Assignee (at issue)
Union Carbide Corporation
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.