Granted Patent
Utility
US 4,541,859 · App. 06/564,188
Method for reducing the phytotoxicity of agricultural machine oil and a composition useful for the method
Inventors:
Takashi Tozawa, Masahiro Endo, Yukio Eiraku
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Dec 22, 1983
Inventors
Takashi Tozawa
Masahiro Endo
Yukio Eiraku
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.