Granted Patent
Utility
US 5,175,365 · App. 07/714,909
Nitro- and cyanoguanidines as selective preemergence herbicides and plant defoliants
Inventors:
Robert L. Arotin, Bryant Leonidas Walworth, Michele Marini
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Jun 14, 1991
Inventors
Robert L. Arotin
Bryant Leonidas Walworth
Michele Marini
Assignee (at issue)
American Cyanamid 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.