Granted Patent
Utility
US 5,310,920 · App. 07/991,051
N-vinylimidazolidine derivatives insecticides containing same as an effective ingredient
Inventors:
Kenji Kodaka, Michihiko Nakaya, Katsutoshi Kinoshita, Koichi Ebihara, Hirozumi Matsuno, Shirou Shiraishi, Kazutomi Ohnuma, Ei-ich Yamada
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Dec 15, 1992
Inventors
Kenji Kodaka
Michihiko Nakaya
Katsutoshi Kinoshita
Koichi Ebihara
Hirozumi Matsuno
Shirou Shiraishi
Kazutomi Ohnuma
Ei-ich Yamada
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.