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Expired European patentEurope

Helically grooved multi-ribbed power transmission belt

EP 0665391 B1 · Applicant: THE GOODYEAR TIRE & RUBBER COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 March 9, 1994 and granted December 3, 1997. A European patent lasts at most 20 years from filing, so its term ended March 9, 2014.
  • 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 9, 2019.
  • 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 9, 1994
PublishedAugust 2, 1995
GrantedDecember 3, 1997
Term endedMarch 9, 2014
Application numberEP 94103578
Classification (CPC)F16G5/20

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMarch 9, 1994PublishedAug 2, 1995Patent grantedDec 3, 1997Term endedMarch 9, 2014

Sources & verification