Granted Patent
Utility
US 4,472,189 · App. 06/453,557
Stannic N-phosphonomethyglycine and its use as a herbicide
Inventor:
Michael P. Prisbylla
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Dec 27, 1982
Inventor
Michael P. Prisbylla
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.