Granted Patent
Utility
US 6,783,038 · App. 10/221,516
Sliding gate for liquid metal flow control
Inventors:
Dong Xu, Lawrence J. Heaslip, James D. Dorricott
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Sep 13, 2002
Inventors
Dong Xu
Lawrence J. Heaslip
James D. Dorricott
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.