Granted Patent
Utility
US 6,235,789 · App. 08/530,148
Benzocycloalkene compounds, their production and use
Inventors:
Shigenori Ohkawa, Osamu Uchikawa, Masaomi Miyamoto
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: May 28, 1997
Inventors
Shigenori Ohkawa
Osamu Uchikawa
Masaomi Miyamoto
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.