Granted Patent
Utility
US 4,540,429 · App. 06/383,449
4-Phenyl-1,2,3-thiadiazoles as herbicide extenders
Inventors:
Joanna K. Hsu, Arnold D. Gutman
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: Jun 1, 1982
Inventors
Joanna K. Hsu
Arnold D. Gutman
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.