DE69918284D1

System for keying protected electronic data to particular media to prevent unauthorized copying

Abstract

This record has no abstract on file.

Term

Term ended

Expired 13 April 2019, 7.4 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

9 members in 5 offices

This recordMember, by publication datePriority claim

Priority claims8

Priority claims
DocumentOfficeKindDate
6149398United States of AmericaA
6149398United States of AmericaA
9908196United States of AmericaW
9908196United States of AmericaW
61493
PCTUS9908196
US19980061493
WO1999US08196

Members9

Family members, oldest first
DocumentOfficeKind
WO9955055A1World Intellectual Property Organization (WIPO)A1
WO0029928A1World Intellectual Property Organization (WIPO)A1
EP1072143A1European Patent Office (EPO)A1
JP2002512412AJapanA
US2003221113A1United States of AmericaA1
EP1072143B1European Patent Office (EPO)B1
DE69918284D1This recordGermanyD1
DE69918284T2GermanyT2
US7246246B2United States of AmericaB2