IP Library › Granted Patent US 6,723,457
Granted Patent Utility
US 6,723,457 · Confirmation No. 2578

PERPENDICULAR MAGNETIC RECORDING MEDIA, MANUFACTURING PROCESS OF THE SAME, AND MAGNETIC STORAGE APPARATUS USING THE SAME

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2009-06-29 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2009-06-26 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2004-03-04 IFEE Issue Fee Payment (PTO-85B) 1 View
2002-02-19 TRNA Transmittal of New Application 1 View
2002-02-19 SPEC Specification 18 View
2002-02-19 CLM Claims 2 View
2002-02-19 ABST Abstract 1 View
2002-02-19 DRW Drawings-only black and white line drawings 10 View
2002-02-19 OATH Oath or Declaration filed 4 View
2002-02-19 LET. Miscellaneous Incoming Letter 1 View
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Quick Facts
Patent No.
US 6,723,457
App. No.
10/076,655
Filed
2002-02-19
Granted
2004-04-20
Pub. No.
US20020197514A1
Art Unit
1773
PTA
0 days