Granted Patent
Utility
US 5,087,740 · App. 07/561,483
Process for purifying N-phosphonomethylglycine
Inventor:
Lowell R. Smith
Patented Case
View Patent ↗
Granted: Feb 11, 1992
Filed: Jul 30, 1990
Inventor
Lowell R. Smith
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.