Granted Patent
Utility
US 6,204,213 · App. 09/399,071
Whisker reinforced ceramic cutting tool and composition thereof
Inventors:
Pankaj K. Mehrotra, William Roy Huston
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Sep 18, 1999
Inventors
Pankaj K. Mehrotra
William Roy Huston
Assignee (at issue)
Kennametal PC Inc.
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.