Granted Patent
Utility
US 4,684,633 · App. 06/691,023
Phospholipid-emulsified prostaglandin composition
Inventors:
Takashi Imagawa, Kazumasa Yokoyama, Yutaka Mizushima
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Jan 14, 1985
Inventors
Takashi Imagawa
Kazumasa Yokoyama
Yutaka Mizushima
Assignee (at issue)
Green Cross Corporation
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.