Granted Patent
Utility
US 6,364,000 · App. 08/935,846
Reinforced ceramic shell mold and method of making same
Inventors:
Rajeev Naik, John Corrigan
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Sep 23, 1997
Inventors
Rajeev Naik
John Corrigan
Assignee (at issue)
Howmet Research Corporation
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.