IP Library › Granted Patent US 6,639,748
Granted Patent Utility
US 6,639,748 · Confirmation No. 7775

DISK DRIVE THAT DISCERNS THE POLARITY OF A HEAD SIGNAL FROM A SYNC MARK TO ENHANCE DATA DETECTION

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2006-06-05 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2003-07-25 IFEE Issue Fee Payment (PTO-85B) 1 View
2001-02-28 TRNA Transmittal of New Application 3 View
2001-02-28 ADS Application Data Sheet 1 View
2001-02-28 SPEC Specification 8 View
2001-02-28 CLM Claims 6 View
2001-02-28 ABST Abstract 1 View
2001-02-28 DRW Drawings-only black and white line drawings 7 View
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Quick Facts
Patent No.
US 6,639,748
App. No.
09/796,933
Filed
2001-02-28
Granted
2003-10-28
Art Unit
2697
PTA
0 days