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European application, no grantEurope

Process and apparatus for the conservation treatment of paper

EP 0273902 A2 · Applicant: Republik ÖSTERREICH, vertreten durch das BUNDESMINISTERIUM FÜR WISSENSCHAFT UND FORSCHUNG,

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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 28, 1987 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 28, 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 28, 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 28, 1987
PublishedJuly 6, 1988
GrantedNever granted
Term endedDecember 28, 2007
Application numberEP 87890296
Classification (CPC)D21H25/18

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedDec 28, 1987PublishedJuly 6, 1988Term endedDec 28, 2007

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