Granted Patent
Utility
US 5,045,294 · App. 07/461,951
Process for preparing medium density granular sodium phosphates
Inventor:
Louis A. Highfill
Patented Case
View Patent ↗
Granted: Sep 3, 1991
Filed: Jan 8, 1990
Inventor
Louis A. Highfill
Assignee (at issue)
Monsanto Company
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.