IP Library › Granted Patent US 6,721,887
Granted Patent Utility
US 6,721,887 · Confirmation No. 6681

DATA COPYRIGHT MANAGEMENT SYSTEM

Inventor: Makoto Saito
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2004-02-19 IFEE Issue Fee Payment (PTO-85B) 1 View
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2003-08-04 RCEX Request for Continued Examination (RCE) 2 View
2003-08-04 IDS Information Disclosure Statement (IDS) Form (SB08) 3 View
2002-08-05 TRNA Transmittal of New Application 5 View
2002-08-05 ABST Abstract 1 View
2002-05-23 TRNA Transmittal of New Application 3 View
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2002-05-23 SPEC Specification 40 View
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2002-05-23 ABST Abstract 1 View
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2002-05-23 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,721,887
App. No.
10/152,584
Filed
2002-05-23
Granted
2004-04-13
Pub. No.
US20020178372A1
Art Unit
2132
PTA
0 days