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Expired European patentEurope

Collapsible building block for erecting toy buildings that fall down flat

EP 1156863 B1 · Applicant: Christiansen, Lyle J.

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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 November 27, 2000 and granted September 22, 2004. A European patent lasts at most 20 years from filing, so its term ended November 27, 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 May 27, 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.
FiledNovember 27, 2000
PublishedNovember 28, 2001
GrantedSeptember 22, 2004
Term endedNovember 27, 2020
Application numberEP 00980806
Classification (CPC)A63H33/06

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedNov 27, 2000PublishedNov 28, 2001Patent grantedSep 22, 2004Term endedNov 27, 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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