IP Library › Granted Patent US 6,643,420
Granted Patent Utility
US 6,643,420 · Confirmation No. 4720

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2003-08-19 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-06-25 TRNA Transmittal of New Application 2 View
2002-06-25 A.PE Preliminary Amendment 6 View
2002-06-25 SPEC Specification 19 View
2002-06-25 CLM Claims 7 View
2002-06-25 ABST Abstract 1 View
2002-06-25 DRW Drawings-only black and white line drawings 3 View
2002-06-25 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,643,420
App. No.
10/178,337
Filed
2002-06-25
Granted
2003-11-04
Pub. No.
US20030123814A1
Examiner
HEALY, BRIAN
Art Unit
2874
PTA
-61 days