IP Library › Granted Patent US 6,498,813
Granted Patent Utility
US 6,498,813 · Confirmation No. 4398

METHOD OF TRANSMISSION FOR PROTECTION OF DATA REPRODUCTION ACCORDING TO BOTH MEDIUM AND APPARATUS PROTECTION LEVELS

Inventor: Takayuki Sugahara
Patented Case View Patent ↗ View Publication ↗
⬇ PDF
 Code Description Pages PDF
2005-05-26 EBCC.AD Notice of Change of Address Place in File Wrapper Due to Electronic Business Center(EBC) Customer Number Update 1 View
2001-11-26 TRNA Transmittal of New Application 2 View
2001-11-26 SPEC Specification 34 View
2001-11-26 CLM Claims 2 View
2001-11-26 ABST Abstract 1 View
2001-11-26 DRW Drawings-only black and white line drawings 16 View
2001-11-26 OATH Oath or Declaration filed 2 View
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Quick Facts
Patent No.
US 6,498,813
App. No.
09/991,665
Filed
2001-11-26
Granted
2002-12-24
Pub. No.
US20020031174A1
Examiner
LEE, Y YOUNG
Art Unit
2613
PTA
-2 days