Granted Patent
Utility
US 5,206,239 · App. 07/651,778
Pyrroloazepine derivatives
Inventors:
Akira Mizuno, Hidetsura Cho, Mikiko Hamaguchi, Toshio Tatsuoka, Takafumi Ishihara
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Feb 7, 1991
Inventors
Akira Mizuno
Hidetsura Cho
Mikiko Hamaguchi
Toshio Tatsuoka
Takafumi Ishihara
Assignee (at issue)
SUNTORY HOLDINGS LIMITED
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.