Granted Patent
Utility
US 5,567,910 · App. 08/248,643
Coating for ammonium nitrate prills
Inventor:
Arun Chattopadhyay
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: May 25, 1994
Inventor
Arun Chattopadhyay
Assignee (at issue)
ICI Canada, 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.