Granted Patent
Utility
US 6,325,204 · App. 09/226,841
Method and drive apparatus for continuously casting metal in a continuous block caster
Inventor:
Ernst Zurcher
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Jan 7, 1999
Inventor
Ernst Zurcher
Assignee (at issue)
Nichols Aluminum - Golden, 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.