Granted Patent
Utility
US 5,284,562 · App. 07/870,672
Non-consumable anode and lining for aluminum electrolytic reduction cell
Inventors:
Theodore R. Beck, Richard J. Brooks
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Apr 17, 1992
Inventors
Theodore R. Beck
Richard J. Brooks
Assignees (at issue)
Electrochemical Technology Corp.
Brooks Rand Inc
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.