Abrasive tool making process – material – or composition – With inorganic material
Reexamination Certificate
2009-12-08
2011-11-15
Lorengo, Jerry A (Department: 1731)
Abrasive tool making process, material, or composition
With inorganic material
C051S293000
Reexamination Certificate
active
08057562
ABSTRACT:
Thermally stable ultra-hard polycrystalline materials and compacts comprise an ultra-hard polycrystalline body that wholly or partially comprises one or more thermally stable ultra-hard polycrystalline region. A substrate can be attached to the body. The thermally stable ultra-hard polycrystalline region can be positioned along all or a portion of an outside surface of the body, or can be positioned beneath a body surface. The thermally stable ultra-hard polycrystalline region can be provided in the form of a single element or in the form of a number of elements. The thermally stable ultra-hard polycrystalline region can be formed from precursor material, such as diamond and/or cubic boron nitride, with an alkali metal catalyst material. The mixture can be sintered by high pressure/high temperature process.
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Connolly Bove & Lodge & Hutz LLP
Lorengo Jerry A
Smith International Inc.
Wood Jared
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