Granted Patent
Utility
US 4,760,145 · App. 06/901,388
Certain 6,7-methylene dioxydihydro or tetrahydro-isoquinoline derivatives
Inventors:
Yoshiharu Morita, Naoshi Imaki, Hisao Takayanagi, Tadashi Shirasaka, Tetsuro Shimpuku, Yuki Takuma, Mari Oishi
Patented Case
View Patent ↗
Granted: Jul 26, 1988
Filed: Aug 28, 1986
Inventors
Yoshiharu Morita
Naoshi Imaki
Hisao Takayanagi
Tadashi Shirasaka
Tetsuro Shimpuku
Yuki Takuma
Mari Oishi
Assignee (at issue)
Mitsubishi 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.