Granted Patent
Utility
US 4,897,252 · App. 07/295,409
Production of hydrogen peroxide
Inventors:
Robert N. Cochran, Lawrence M. Candela
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Jan 10, 1989
Inventors
Robert N. Cochran
Lawrence M. Candela
Assignee (at issue)
Arco Chemical Technology, L.P.
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.