Granted Patent
Utility
US 4,256,482 · App. 06/077,762
Herbicidal composition
Inventors:
Erwin J. Wittmann, Alfred Diskus, Engelbert Auer
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Sep 21, 1979
Inventors
Erwin J. Wittmann
Alfred Diskus
Engelbert Auer
Assignee (at issue)
Chemie Linz GmbH
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.