Granted Patent
Utility
US 4,328,377 · App. 06/204,172
Process for producing phenolic compounds
Inventors:
Akira Mori, Sekijiro Noda, Hiroshi Osuo, Akio Kanazawa, Tadahiko Nishimura, Masatoshi Yamamoto, Yoshio Tomatsu
Patented Case
View Patent ↗
Granted: May 4, 1982
Filed: Nov 5, 1980
Inventors
Akira Mori
Sekijiro Noda
Hiroshi Osuo
Akio Kanazawa
Tadahiko Nishimura
Masatoshi Yamamoto
Yoshio Tomatsu
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.