Granted Patent
Utility
US 4,293,720 · App. 06/146,080
Process for preparation of hydroperoxides
Inventors:
Tetsuo Iwaki, Yukio Takahashi, Shuji Moriuchi, Hisamitsu Kaneko
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: May 2, 1980
Inventors
Tetsuo Iwaki
Yukio Takahashi
Shuji Moriuchi
Hisamitsu Kaneko
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.