DE69123680D1

Method and apparatus for protecting multiple copies of computer software from unauthorized use

Abstract

This record has no abstract on file.

Term

Term ended

Expired 4 September 2011, 15.1 years ago.

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

8 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
DocumentOfficeKindDate
59280890United States of AmericaA
592808
US19900592808

Members8

Family members, oldest first
DocumentOfficeKind
US5081676AUnited States of AmericaA
CA2051576A1CanadaA1
EP0478969A2European Patent Office (EPO)A2
EP0478969A3European Patent Office (EPO)A3
CA2051576CCanadaC
EP0478969B1European Patent Office (EPO)B1
DE69123680D1This recordGermanyD1
DE69123680T2GermanyT2