Granted Patent
Utility
US 5,250,502 · App. 07/861,047
Method for enhancing the herbicidal activity of formulations containing solid imidazolinyl benzoic acid esters with bisulfate
Inventor:
Charles Paul Grasso
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Apr 1, 1992
Inventor
Charles Paul Grasso
Assignee (at issue)
American Cyanamid 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.