IP Library › Granted Patent US 6,646,221
Granted Patent Utility
US 6,646,221 · Confirmation No. 4834

METHOD FOR REPAIRING RESISTANCE SPOT WELDS IN ALUMINUM SHEET MATERIALS

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2003-09-10 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-04-15 TRNA Transmittal of New Application 1 View
2002-04-15 SPEC Specification 8 View
2002-04-15 CLM Claims 2 View
2002-04-15 ABST Abstract 1 View
2002-04-15 DRW Drawings-only black and white line drawings 1 View
2002-04-15 OATH Oath or Declaration filed 5 View
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Quick Facts
Patent No.
US 6,646,221
App. No.
10/122,534
Filed
2002-04-15
Granted
2003-11-11
Pub. No.
US20030192863A1
Art Unit
1725
PTA
0 days