Granted Patent
Utility
US 4,292,070 · App. 06/133,270
N-Substituted tetrahydrophthalimide and herbicidal composition
Inventors:
Osamu Wakabayashi, Kuni Matsuya, Hiroki Ohta, Tetsuo Jikihara, Seiichi Suzuki
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Mar 24, 1980
Inventors
Osamu Wakabayashi
Kuni Matsuya
Hiroki Ohta
Tetsuo Jikihara
Seiichi Suzuki
Assignee (at issue)
Mitsubishi Chemical Industries, Ltd.
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.