Granted Patent
Utility
US 6,231,745 · App. 09/416,767
Cathode collector bar
Inventors:
Graham E. Homley, Donald P. Ziegler
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Oct 13, 1999
Inventors
Graham E. Homley
Donald P. Ziegler
Assignee (at issue)
ALCOA 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.