Granted Patent
Utility
US 4,536,209 · App. 06/308,825
N-(3-substituted oxyphenyl)tetrahydrophthalimides and herbicidal composition
Inventors:
Tetsuo Jikihara, Masatsugu Oda, Bunji Natsume, Hisao Watanabe, Seiichi Suzuki
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Oct 5, 1981
Inventors
Tetsuo Jikihara
Masatsugu Oda
Bunji Natsume
Hisao Watanabe
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.