Granted Patent
Utility
US 4,822,822 · App. 06/923,274
Benzylamine derivatives, and use thereof
Inventors:
Masanobu Arita, Kiyoshi Arai, Nobuo Komoto, Setsuko Hirose, Takeshi Sekine
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Oct 27, 1986
Inventors
Masanobu Arita
Kiyoshi Arai
Nobuo Komoto
Setsuko Hirose
Takeshi Sekine
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.