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Expired European patentEurope

Aluminium sheet with rough surface

EP 0720516 B1 · Applicant: ALCAN INTERNATIONAL LIMITED

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Overview

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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 September 21, 1994 and granted March 15, 2000. A European patent lasts at most 20 years from filing, so its term ended September 21, 2014.
  • 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 March 21, 2020.
  • 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.
FiledSeptember 21, 1994
PublishedJuly 10, 1996
GrantedMarch 15, 2000
Term endedSeptember 21, 2014
Application numberEP 94926999
Classification (CPC)B21B1/227 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedSep 21, 1994PublishedJuly 10, 1996Patent grantedMarch 15, 2000Term endedSep 21, 2014

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.