Granted Patent
Utility
US 5,192,799 · App. 07/895,417
Coumaran group containing amine compounds and their acid addition salts and quaternary ammonium salts and the use thereof as anti arrhythmic agents and as psychotropic agents
Inventors:
Ikuo Tomino, Masaharu Ishiguro, Takumi Kitahara, Keiichi Yokoyama, Noriaki Kihara, Joji Kamiya, Kanji Yoshihara, Masaaki Ishii, Akira Mizuchi, Kazutoshi Horikomi, Akira Awaya, Takuo Nakano
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Jun 5, 1992
Inventors
Ikuo Tomino
Masaharu Ishiguro
Takumi Kitahara
Keiichi Yokoyama
Noriaki Kihara
Joji Kamiya
Kanji Yoshihara
Masaaki Ishii
Akira Mizuchi
Kazutoshi Horikomi
Akira Awaya
Takuo Nakano
Assignee (at issue)
Mitsui Petrochemical 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.