IP Library › Granted Patent US 6,640,731
Granted Patent Utility
US 6,640,731 · Confirmation No. 7786

DUAL TUNGSTEN CARBIDE BOOT

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2003-08-11 IFEE Issue Fee Payment (PTO-85B) 1 View
2003-08-11 LET. Miscellaneous Incoming Letter 2 View
2003-07-23 LET. Miscellaneous Incoming Letter 3 View
2003-07-23 DRW Drawings-only black and white line drawings 12 View
2002-06-25 TRNA Transmittal of New Application 2 View
2002-06-25 SPEC Specification 17 View
2002-06-25 CLM Claims 14 View
2002-06-25 ABST Abstract 1 View
2002-06-25 DRW Drawings-only black and white line drawings 12 View
2002-06-25 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,640,731
App. No.
10/179,629
Filed
2002-06-25
Granted
2003-11-04
Art Unit
3671
PTA
0 days