Granted Patent
Utility
US 4,432,909 · App. 06/453,086
Amine oxanilic acid salts as herbicide extenders
Inventor:
Rayman Y. Wong
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Dec 27, 1982
Inventor
Rayman Y. Wong
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.