Granted Patent
Utility
US 5,019,155 · App. 07/380,846
Herbicidal granular compositions
Inventors:
Masaomi Kimpara, Kaiji Kawai, Hiroshi Kikuchi, Masai Sato
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Jul 14, 1989
Inventors
Masaomi Kimpara
Kaiji Kawai
Hiroshi Kikuchi
Masai Sato
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.