Patent Yard Sign in
Expired European patentEurope

AC pulse arc welding method

EP 1609554 B1 · Applicant: Daihen Corporation

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 21, 2005 and granted October 22, 2008. A European patent lasts at most 20 years from filing, so its term ended June 21, 2025.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 21, 2005
PublishedDecember 28, 2005
GrantedOctober 22, 2008
Term endedJune 21, 2025
Application numberEP 05253848
Classification (CPC)B23K9/0953 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedJune 21, 2005PublishedDec 28, 2005Patent grantedOct 22, 2008Term endedJune 21, 2025

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.