Granted Patent
Utility
US 6,344,149 · App. 09/189,484
Polycrystalline diamond member and method of making the same
Inventor:
Edward J. Oles
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Nov 10, 1998
Inventor
Edward J. Oles
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.