IP Library › Granted Patent US 6,634,820
Granted Patent Utility
US 6,634,820 · Confirmation No. 8442

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2003-08-28 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-03-19 TRNA Transmittal of New Application 3 View
2001-03-19 SPEC Specification 29 View
2001-03-19 CLM Claims 5 View
2001-03-19 ABST Abstract 1 View
2001-03-19 DRW Drawings-only black and white line drawings 24 View
2001-03-19 OATH Oath or Declaration filed 6 View
2001-03-19 TRNA Transmittal of New Application 3 View
2001-03-19 SPEC Specification 29 View
2001-03-19 CLM Claims 5 View
2001-03-19 ABST Abstract 1 View
2001-03-19 DRW Drawings-only black and white line drawings 24 View
2001-03-19 OATH Oath or Declaration filed 6 View
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Quick Facts
Patent No.
US 6,634,820
App. No.
09/810,255
Filed
2001-03-19
Granted
2003-10-21
Pub. No.
US20020031390A1
Examiner
YAN, REN LUO
Art Unit
2854
PTA
-15 days