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Expired European patentEurope

Refrigerating machine oil composition

EP 1681342 B1 · Applicant: IDEMITSU KOSAN 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 March 1, 2000 and granted February 16, 2011. A European patent lasts at most 20 years from filing, so its term ended March 1, 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 September 1, 2025.
  • 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.
FiledMarch 1, 2000
PublishedJuly 19, 2006
GrantedFebruary 16, 2011
Term endedMarch 1, 2020
Application numberEP 06110860
Classification (CPC)C10M161/00 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 1, 2000PublishedJuly 19, 2006Patent grantedFeb 16, 2011Term endedMarch 1, 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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