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Expired European patentEurope

Method and device for lining construction in sewer followed by simultaneous filling of back-fill material

EP 1281902 B1 · Applicant: SEKISUI CHEMICAL CO., LTD.

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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 11, 2001 and granted April 20, 2011. A European patent lasts at most 20 years from filing, so its term ended December 11, 2021.
  • 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.
FiledDecember 11, 2001
PublishedFebruary 5, 2003
GrantedApril 20, 2011
Term endedDecember 11, 2021
Application numberEP 01270723
Classification (CPC)B29C63/32 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedDec 11, 2001PublishedFeb 5, 2003Patent grantedApril 20, 2011Term endedDec 11, 2021

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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