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Expired European patentEurope

Production of a gas hydrate slurry using a fluidized bed heat exchanger

EP 1159238 B1 · Applicant: MARATHON OIL COMPANY

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Overview

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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 26, 2000 and granted August 20, 2008. A European patent lasts at most 20 years from filing, so its term ended December 26, 2020.
  • 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 June 26, 2026.
  • 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 26, 2000
PublishedDecember 5, 2001
GrantedAugust 20, 2008
Term endedDecember 26, 2020
Application numberEP 00993706
Classification (CPC)B01J8/007 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedDec 26, 2000PublishedDec 5, 2001Patent grantedAug 20, 2008Term endedDec 26, 2020

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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