Patent Yard Sign in
Expired European patentEurope

Invalidation method for valuable documents, and device for carrying out the method

EP 0232632 B1 · Applicant: BULL S.A.

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Google PatentsEPO PDF

Why it's free to use

  • Filed January 31, 1986 and granted June 7, 1989. A European patent lasts at most 20 years from filing, so its term ended January 31, 2006.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by July 31, 2011.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJanuary 31, 1986
PublishedAugust 19, 1987
GrantedJune 7, 1989
Term endedJanuary 31, 2006
Application numberEP 86400199
Classification (CPC)G07F19/20 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 31, 1986PublishedAug 19, 1987Patent grantedJune 7, 1989Term endedJan 31, 2006

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.