Granted Patent
Utility
US 4,422,869 · App. 06/255,209
Halogenated allylthioisopropyl N-methylcarbamates as herbicide extenders
Inventors:
Daniel L. Hyzak, Ferenc M. Pallos, Joanna K. Hsu
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Apr 20, 1981
Inventors
Daniel L. Hyzak
Ferenc M. Pallos
Joanna K. Hsu
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.