Granted Patent
Utility
US 5,266,553 · App. 07/779,896
Method of manufacturing a dry water-soluble herbicidal salt composition
Inventors:
James Champion, Conrad Harwell
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Oct 21, 1991
Inventors
James Champion
Conrad Harwell
Assignee (at issue)
Riverdale 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.