Granted Patent
Utility
US 4,699,921 · App. 06/763,618
Pharmaceuticals containing prostaglandin I.sub.2
Inventors:
Masakatsu Shibasaki, Mikiko Sodeoka, Yuji Ogawa, Toshiaki Mase, Akira Ishibashi, Daijiro Horii, Toshiji Kanayama, Katsuhiko Iseki, Masaki Shinoda, Chiyoko Ishiyama, Yoshio Hayashi
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Aug 8, 1985
Inventors
Masakatsu Shibasaki
Mikiko Sodeoka
Yuji Ogawa
Toshiaki Mase
Akira Ishibashi
Daijiro Horii
Toshiji Kanayama
Katsuhiko Iseki
Masaki Shinoda
Chiyoko Ishiyama
Yoshio Hayashi
Assignees (at issue)
Mitsubishi Yuka Pharmaceutical Co., Ltd.
Sagami Chemical Research Center
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.