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Expired European patentEurope

Circuit arrangement for a rectifier

EP 1081841 B1 · Applicant: EWM Hightec Welding GmbH

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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.

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Why it's free to use

  • Filed August 26, 2000 and granted February 10, 2010. A European patent lasts at most 20 years from filing, so its term ended August 26, 2020.
  • 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 February 26, 2026.
  • 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.
FiledAugust 26, 2000
PublishedMarch 7, 2001
GrantedFebruary 10, 2010
Term endedAugust 26, 2020
Application numberEP 00118568
Classification (CPC)H02M7/4826 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedAug 26, 2000PublishedMarch 7, 2001Patent grantedFeb 10, 2010Term endedAug 26, 2020

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

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