IP Library › Granted Patent US 6,812,920
Granted Patent Utility PCT National Stage
US 6,812,920 · Confirmation No. 4036

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Inventor: Hiroshi Otsuka
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2004-07-21 IFEE Issue Fee Payment (PTO-85B) 1 View
2004-06-08 LET. Miscellaneous Incoming Letter 1 View
2004-06-08 DRW Drawings-only black and white line drawings 3 View
2001-04-18 LET. Miscellaneous Incoming Letter 33 View
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Quick Facts
Patent No.
US 6,812,920
App. No.
09/807,725
Filed
2001-04-18
Granted
2004-11-02
Examiner
LAO, LUNYI
Art Unit
2673
PTA
0 days