Granted Patent
Utility
US 6,772,922 · App. 10/257,744
One-piece inner nozzle and clamping device for holding such a nozzle
Inventors:
Jean-Luc Renard, Vincent Boisdequin, Calogero Lattuca, Mariano Collura
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Oct 16, 2002
Inventors
Jean-Luc Renard
Vincent Boisdequin
Calogero Lattuca
Mariano Collura
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.