IP Library Granted Patent US 6,568,458
Granted Patent Utility
US 6,568,458 · App. 10/022,470

Reinforced ceramic shell mold and method of making same

Inventors: Rajeev Naik, John Corrigan
Patented Case View Patent ↗
Granted: May 27, 2003 Filed: Oct 30, 2001
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,568,458
App. No.
10/022,470
Filed
2001-10-30
Granted
2003-05-27
Kind
B2