Granted Patent
Utility
US 4,496,591 · App. 06/311,306
Insecticidal bis-carbamate sulfides
Inventors:
John A. Durden, Jr., Themistocles D. J. D'Silva
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Oct 14, 1981
Inventors
John A. Durden, Jr.
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.