IP Library Patent Application 09931897
Patent Application Utility
App. No. 09/931,897 · Confirmation No. 5184

MAGNETIC DISK APPARATUS INCLUDING MAGNETIC HEAD HAVING MULTILAYERED REPRODUCING ELEMENT USING TUNNELING EFFECT

Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362 View Patent ↗ View Publication ↗
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Code Description Pages PDF
2009-03-13 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-08-20 TRNA Transmittal of New Application 4 View
2001-08-20 A.PE Preliminary Amendment 7 View
2001-08-20 SPEC Specification 60 View
2001-08-20 CLM Claims 5 View
2001-08-20 ABST Abstract 1 View
2001-08-20 DRW Drawings-only black and white line drawings 17 View
2001-08-20 OATH Oath or Declaration filed 3 View
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Quick Facts
App. No.
09/931,897
Filed
2001-08-20
Granted
2002-11-19
Pub. No.
US20020018325A1
Art Unit
2652
PTA
-151 days