Granted Patent
Utility
US 4,376,205 · App. 06/254,549
Process for the preparation of indoles from anilines and ethanolamines
Inventors:
Fujio Matsuda, Takazo Kato
Patented Case
View Patent ↗
Granted: Mar 8, 1983
Filed: Apr 15, 1981
Inventors
Fujio Matsuda
Takazo Kato
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.