Granted Patent
Utility
US 4,937,353 · App. 07/267,708
Preparation process for indoles
Inventors:
Akihide Kudoh, Tadatoshi Honda, Makoto Kotani, Kazuhiro Terada, Takeshi Tsuda, Shinji Kiyono
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Nov 3, 1988
Inventors
Akihide Kudoh
Tadatoshi Honda
Makoto Kotani
Kazuhiro Terada
Takeshi Tsuda
Shinji Kiyono
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.