Granted Patent
Utility
US 5,700,754 · App. 08/543,999
Barium/calcium catalyst and a process for producing the same
Inventors:
Kanichiro Inui, Shunji Oshima
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Oct 17, 1995
Inventors
Kanichiro Inui
Shunji Oshima
Assignee (at issue)
Chisso Corporation
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.