IP Library › Granted Patent US 6,657,520
Granted Patent Utility
US 6,657,520 · Confirmation No. 5075

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2015-05-21 IMIS Miscellaneous Internal Document 1 View
2003-10-14 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-10-18 TRNA Transmittal of New Application 1 View
2001-10-18 SPEC Specification 22 View
2001-10-18 CLM Claims 7 View
2001-10-18 ABST Abstract 1 View
2001-10-18 DRW Drawings-only black and white line drawings 10 View
2001-10-18 OATH Oath or Declaration filed 4 View
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Quick Facts
Patent No.
US 6,657,520
App. No.
09/978,556
Filed
2001-10-18
Granted
2003-12-02
Pub. No.
US20020097116A1
Art Unit
2817
PTA
-52 days