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Expired European patentEurope

Method of and apparatus for use in reinforcing a piling structure, and a precast concrete pile for use in the method

EP 0069181 B1 · Applicant: Lin, Juei-Tse

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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 December 31, 1981 and granted January 16, 1985. A European patent lasts at most 20 years from filing, so its term ended December 31, 2001.
  • 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 July 1, 2007.
  • 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.
FiledDecember 31, 1981
PublishedJanuary 12, 1983
GrantedJanuary 16, 1985
Term endedDecember 31, 2001
Application numberEP 81306196
Classification (CPC)E02D3/12 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedDec 31, 1981PublishedJan 12, 1983Patent grantedJan 16, 1985Term endedDec 31, 2001

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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