IP Library Granted Patent US 4,496,591
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,496,591
App. No.
06/311,306
Filed
1981-10-14
Granted
1985-01-29
Kind
A