Granted Patent
Utility
US 4,423,237 · App. 06/381,136
Benzodioxane herbicides
Inventor:
Don R. Baker
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: May 24, 1982
Inventor
Don R. Baker
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.