Granted Patent
Utility
US 5,688,994 · App. 08/768,334
Process for preparing N-phosphonomethyliminodiacetic acid
Inventors:
Sherrol L. Baysdon, David Lee Taxter
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Dec 17, 1996
Inventors
Sherrol L. Baysdon
David Lee Taxter
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.