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Expired European patentEurope

Plugging a hollow profile of a spirally wound pipe

EP 1677967 B1 · Applicant: Oy KWH Pipe AB

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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 October 20, 2004 and granted January 28, 2009. A European patent lasts at most 20 years from filing, so its term ended October 20, 2024.
  • 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.
FiledOctober 20, 2004
PublishedJuly 12, 2006
GrantedJanuary 28, 2009
Term endedOctober 20, 2024
Application numberEP 04791443
Classification (CPC)B29C69/001 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 20, 2004PublishedJuly 12, 2006Patent grantedJan 28, 2009Term endedOct 20, 2024

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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