Granted Patent
Utility
US 5,707,919 · App. 08/552,775
Catalyst for preparing chlorine from hydrogen chloride
Inventors:
Katsuharu Miyata, Jyoji Morisaki, Teruo Hirayama, Hironori Kamachi, Kunihiro Yamada
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Nov 3, 1995
Inventors
Katsuharu Miyata
Jyoji Morisaki
Teruo Hirayama
Hironori Kamachi
Kunihiro Yamada
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.