Granted Patent
Utility
US 5,482,967 · App. 08/114,841
Condensed heterocyclic compounds, their production and use
Inventors:
Hideaki Natsugari, Hitoshi Ikeda, Takenori Ishimaru, Takayuki Doi
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Sep 2, 1993
Inventors
Hideaki Natsugari
Hitoshi Ikeda
Takenori Ishimaru
Takayuki Doi
Assignee (at issue)
Takeda Chemical 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.