Granted Patent
Utility
US 5,356,866 · App. 08/065,495
Furobenzopyran derivatives, process for preparation of same and herbicides containing same as active components
Inventors:
Kiyoshi Arai, Masayuki Ooka, Fumiaki Koizumi, Sadafumi Koda, Yasunaga Iwasaki, Yoshiro Kanemoto
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: May 24, 1993
Inventors
Kiyoshi Arai
Masayuki Ooka
Fumiaki Koizumi
Sadafumi Koda
Yasunaga Iwasaki
Yoshiro Kanemoto
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.