Granted Patent
Utility
US 5,883,111 · App. 08/685,907
Heterocyclic compounds and their use as angiotensin antagonists
Inventors:
Takehiko Naka, Yoshiyuki Inada
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Jul 22, 1996
Inventors
Takehiko Naka
Yoshiyuki Inada
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.