Patent Yard Sign in
Expired European patentEurope

Process and device for the automatic tracking of welding joints

EP 0006389 B1 · Applicant: LA SOUDURE AUTOGENE FRANCAISE

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 June 19, 1979 and granted September 2, 1981. A European patent lasts at most 20 years from filing, so its term ended June 19, 1999.
  • 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 December 19, 2004.
  • 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.
FiledJune 19, 1979
PublishedJanuary 9, 1980
GrantedSeptember 2, 1981
Term endedJune 19, 1999
Application numberEP 79400402
Classification (CPC)B23K9/1274

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedJune 19, 1979PublishedJan 9, 1980Patent grantedSep 2, 1981Term endedJune 19, 1999

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.