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EP 0270865 B1 · Applicant: ELF ATOCHEM ITALIA S.r.l.

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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 November 11, 1987 and granted August 25, 1993. A European patent lasts at most 20 years from filing, so its term ended November 11, 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 May 11, 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.
FiledNovember 11, 1987
PublishedJune 15, 1988
GrantedAugust 25, 1993
Term endedNovember 11, 2007
Application numberEP 87116676
Classification (CPC)C08L51/04 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedNov 11, 1987PublishedJune 15, 1988Patent grantedAug 25, 1993Term endedNov 11, 2007

Sources & verification