Granted Patent
Utility
US 6,558,445 · App. 10/107,718
Dry fertilizer compositions and method for making the same
Inventor:
Gregory S. Hunter
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Mar 26, 2002
Inventor
Gregory S. Hunter
Assignee (at issue)
LUZENAC AMERICA, 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.