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Expired European patentEurope

Pipe elevator and method

EP 1840323 B1 · Applicant: NATIONAL-OILWELL, L.P.

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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.

Why it's free to use

  • Filed April 12, 2006 and granted September 30, 2009. A European patent lasts at most 20 years from filing, so its term ended April 12, 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.
FiledApril 12, 2006
PublishedOctober 3, 2007
GrantedSeptember 30, 2009
Term endedApril 12, 2026
Application numberEP 07012916
Classification (CPC)E21B19/06

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedApril 12, 2006PublishedOct 3, 2007Patent grantedSep 30, 2009Term endedApril 12, 2026

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