Granted Patent
Utility
US 6,528,010 · App. 09/778,038
Molten metal handling vessel
Inventors:
Donald R. Zacharias, Norbert A. Strobel
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Feb 7, 2001
Inventors
Donald R. Zacharias
Norbert A. Strobel
Assignees (at issue)
Foseco International Limited
Stelco 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.