SII MEGADIAMOND, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0294,514 FRICTION STIR WELDING IMPROVEMENTS FOR METAL MATRIX COMPOSITES, FERROUS ALLOYS, NON-FERROUS ALLOYS, AND SUPERALLOYS USING A SUPERABRASIVE TOOLAbandonedJul 13, 09Dec 03, 09[B23K]
2006/0175,382 Tool geometries for friction stir spot welding of high melting temperature alloysAbandonedFeb 15, 06Aug 10, 06[B23K]
2006/0032,333 Solid state processing of industrial blades, edges and cutting elementsAbandonedMar 24, 05Feb 16, 06[B23D]
2006/0032,891 Solid state processing of materials through friction stir processing and friction stir mixingAbandonedMar 24, 05Feb 16, 06[B23K]
2005/0051,602 Control system for friction stir welding of metal matrix composites, ferrous alloys, non-ferrous alloys, and superalloysAbandonedMay 13, 04Mar 10, 05[B23K]
4797241 Method for producing multiple polycrystalline bodiesExpiredMay 20, 85Jan 10, 89[C04B]
4664705 Infiltrated thermally stable polycrystalline diamondExpiredJul 30, 85May 12, 87[C22C]
4662348 Burnishing diamondExpiredJun 20, 85May 05, 87[F41B]
4647546 Polycrystalline cubic boron nitride compactExpiredOct 30, 84Mar 03, 87[C04B]
4629373 Polycrystalline diamond body with enhanced surface irregularitiesExpiredJun 22, 83Dec 16, 86[B23B]
4627503 Multiple layer polycrystalline diamond compactExpiredAug 12, 83Dec 09, 86[E21B]
4570726 Curved contact portion on engaging elements for rotary type drag bitsExpiredMar 04, 85Feb 18, 86[E21B]
4529048 Inserts having two components anchored together at a non-perpendicular angle of attachment for use in rotary type drag bitsExpiredJan 20, 83Jul 16, 85[E21B]
4527643 Rotary cutting member for drilling holesExpiredFeb 07, 83Jul 09, 85[E21B]
4525178 Composite polycrystalline diamondExpiredApr 16, 84Jun 25, 85[B24D]

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