Granted Patent
Utility
US 4,996,372 · App. 07/473,105
Process for oxidizing 2,6-diisopropylnaphthalene
Inventors:
Kenji Saeki, Hiroshi Fukuhara, Tokinori Agoo, Toru Taguchi, Hisaya Miki, Yutaka Haneda, Sadao Yoshimoto
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Feb 2, 1990
Inventors
Kenji Saeki
Hiroshi Fukuhara
Tokinori Agoo
Toru Taguchi
Hisaya Miki
Yutaka Haneda
Sadao Yoshimoto
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.