Granted Patent
Utility
US 5,296,635 · App. 07/975,952
Preparation of bis(3-nitrophenoxy) compound
Inventors:
Motohiro Kase, Hitoshi Nakayama, Masaru Wada, Teruyuki Nagata, Akihiro Yamaguchi
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Nov 13, 1992
Inventors
Motohiro Kase
Hitoshi Nakayama
Masaru Wada
Teruyuki Nagata
Akihiro Yamaguchi
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.