Granted Patent
Utility
US 5,840,928 · App. 08/813,348
Method for production of 3-formyl-tetrahydrofuran
Inventors:
Kenichi Satoh, Toshio Kitashima, Yutaka Chiba, Katsutoshi Kinoshita, Kenji Kodaka
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Mar 7, 1997
Inventors
Kenichi Satoh
Toshio Kitashima
Yutaka Chiba
Katsutoshi Kinoshita
Kenji Kodaka
Assignee (at issue)
MITSUI CHEMICALS, INC.
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.