IP Library › Granted Patent US 5,454,889
Granted Patent Utility
US 5,454,889 · App. 08/109,152

Prill coating

Inventors: Melvin A. McNicol, Fortunato Villamagna, J. P. Michel Couture
Patented Case View Patent ↗
Granted: Oct 3, 1995 Filed: Aug 19, 1993
Inventors
Melvin A. McNicol
Fortunato Villamagna
J. P. Michel Couture
Assignees (at issue)
ICI Canada, Inc.
ICI Explosives USA Inc.

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 5,454,889
App. No.
08/109,152
Filed
1993-08-19
Granted
1995-10-03
Kind
A