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Expired European patentEurope

Image-receiving material for use in diffusion transfer reversal

EP 0276506 B1 · Applicant: AGFA-GEVAERT naamloze vennootschap

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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.

Why it's free to use

  • Filed December 14, 1987 and granted February 27, 1991. A European patent lasts at most 20 years from filing, so its term ended December 14, 2007.
  • 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 14, 2013.
  • 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 14, 1987
PublishedAugust 3, 1988
GrantedFebruary 27, 1991
Term endedDecember 14, 2007
Application numberEP 87202494
Classification (CPC)C08J7/056 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedDec 14, 1987PublishedAug 3, 1988Patent grantedFeb 27, 1991Term endedDec 14, 2007

Sources & verification