Granted Patent
Utility
US 5,596,039 · App. 08/201,391
Diguanamines and preparation process, derivatives and use thereof
Inventors:
Tetsuya Oishi, Hiroshi Ozawa, Minato Karasawa, Masamitsu Inomata, Izumi Mega, Atsuyoshi Yamauchi
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Feb 24, 1994
Inventors
Tetsuya Oishi
Hiroshi Ozawa
Minato Karasawa
Masamitsu Inomata
Izumi Mega
Atsuyoshi Yamauchi
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.