Granted Patent
Utility
US 6,776,219 · App. 09/399,123
Castable refractory investment mold materials and methods of their use in infiltration casting
Inventors:
James A. Cornie, Maxim Seleznev, Brett M. Schulz, Shiyu Zhang
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Sep 20, 1999
Inventors
James A. Cornie
Maxim Seleznev
Brett M. Schulz
Shiyu Zhang
Assignee (at issue)
Metal Matrix Cast Composites LLC
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.