Granted Patent
Utility
US 4,378,239 · App. 06/257,850
N-Methylcarbamoyloxy benzaldehyde imine herbicide extenders
Inventors:
Daniel L. Hyzak, Llewellyn W. Fancher, Edmund J. Gaughan, Joanna K. Hsu
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Apr 27, 1981
Inventors
Daniel L. Hyzak
Llewellyn W. Fancher
Edmund J. Gaughan
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.