Granted Patent
Utility
US 6,076,657 · App. 09/048,558
Apparatus for continuously casting metal
Inventors:
Erich Luginbuhl, Michel Meyer, Rudolf Roder, Marcel Witschi, Ernst Zurcher
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Mar 26, 1998
Inventors
Erich Luginbuhl
Michel Meyer
Rudolf Roder
Marcel Witschi
Ernst Zurcher
Assignee (at issue)
Nichols Aluminum
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.