Granted Patent
Utility
US 6,027,685 · App. 08/951,007
Flow-directing device for molten metal pump
Inventor:
Paul V. Cooper
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Oct 15, 1997
Inventor
Paul V. Cooper
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.