Granted Patent
Utility
US 4,422,982 · App. 06/393,574
Method for preparation of N-phosphonomethylglycine
Inventor:
N. Subramanian
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Jun 30, 1982
Inventor
N. Subramanian
Assignee (at issue)
Stauffer Chemical 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.