Granted Patent
Utility
US 5,475,157 · App. 08/256,245
Process for producing aromatic hydroxylic compound
Inventors:
Shintaro Araki, Hiroshi Iwasaki, Hiroyasu Ohno, Isao Hashimoto, Teruaki Mukaiyama
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Sep 2, 1994
Inventors
Shintaro Araki
Hiroshi Iwasaki
Hiroyasu Ohno
Isao Hashimoto
Teruaki Mukaiyama
Assignee (at issue)
Mitsui Petrochemical 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.