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Expired European patentEurope

Method of improving anti-shudder durability of power transmission fluids

EP 1017768 B1 · Applicant: Infineum USA L.P.

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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 March 19, 1998 and granted August 8, 2001. A European patent lasts at most 20 years from filing, so its term ended March 19, 2018.
  • 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 19, 2023.
  • 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 19, 1998
PublishedJuly 12, 2000
GrantedAugust 8, 2001
Term endedMarch 19, 2018
Application numberEP 98911812
Classification (CPC)C10M163/00 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedMarch 19, 1998PublishedJuly 12, 2000Patent grantedAug 8, 2001Term endedMarch 19, 2018

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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