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Expired European patentEurope

Cured rubber skim stock compositions having improved metal adhesion and metal adhesion retention, and tyre having said improvement

EP 0031398 B1 · Applicant: THE FIRESTONE 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 July 29, 1980 and granted March 14, 1984. A European patent lasts at most 20 years from filing, so its term ended July 29, 2000.
  • 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 January 29, 2006.
  • 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.
FiledJuly 29, 1980
PublishedJuly 8, 1981
GrantedMarch 14, 1984
Term endedJuly 29, 2000
Application numberEP 80104473
Classification (CPC)C08L7/00 +2 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedJuly 29, 1980PublishedJuly 8, 1981Patent grantedMarch 14, 1984Term endedJuly 29, 2000

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