Granted Patent
Utility
US 6,419,813 · App. 09/721,847
Cathode connector for aluminum low temperature smelting cell
Inventors:
Craig W. Brown, Theodore R. Beck, Patrick B. Frizzle
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Nov 25, 2000
Inventors
Craig W. Brown
Theodore R. Beck
Patrick B. Frizzle
Assignee (at issue)
Northwest Aluminum Technologies
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.