Granted Patent
Utility
US 6,616,782 · App. 10/117,637
Thermal shock-resistant ceramic article
Inventor:
Eric Hanse
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Apr 5, 2002
Inventor
Eric Hanse
Assignee (at issue)
VESUVIUS CRUCIBLE COMPANY
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.