IP Library › Granted Patent US 4,654,332
Granted Patent Utility
US 4,654,332 · App. 06/124,253

Heterocyclic compounds

Inventors: Keith P. Parry, William G. Rathmell, Paul A. Worthington
Patented Case View Patent ↗
Granted: Mar 31, 1987 Filed: Feb 25, 1980
Inventors
Keith P. Parry
William G. Rathmell
Paul A. Worthington
Assignee (at issue)
IMPERIAL CHEMICAL INDUSTRIES LIMITED

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 4,654,332
App. No.
06/124,253
Filed
1980-02-25
Granted
1987-03-31
Kind
A