Cutting elements with improved cutting element interface...

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Reexamination Certificate

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Reexamination Certificate

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06962218

ABSTRACT:
Cutting elements having a non-planar substrate interface surface including a band and an ultra hard material layer over the interface surface are provided. Also provided are earth boring bits incorporating such cutting elements.

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Diamond-Edge Geometry, Diamond Bits—Genesis—Advanced Cutter Technology, 2002 Baker Hughes Incorporated, 1 page.
Search Report under Section 17(6) for U.K. Application No. GB0407674.1; Oct. 28, 2004; 3 pages.

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