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Expired European patentEurope

Equalized load distribution slips for spider and elevator

EP 1726774 B1 · Applicant: Weatherford/Lamb, Inc.

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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 May 11, 2006 and granted April 18, 2012. A European patent lasts at most 20 years from filing, so its term ended May 11, 2026.
  • 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.
FiledMay 11, 2006
PublishedNovember 29, 2006
GrantedApril 18, 2012
Term endedMay 11, 2026
Application numberEP 06270046
Classification (CPC)E21B19/07

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMay 11, 2006PublishedNov 29, 2006Patent grantedApril 18, 2012Term endedMay 11, 2026

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.