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Expired European patentEurope

The stabilization of dye images produced in photographic materials

EP 0265196 B1 · Applicant: EASTMAN KODAK COMPANY (a New Jersey corporation)

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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 October 19, 1987 and granted January 2, 1992. A European patent lasts at most 20 years from filing, so its term ended October 19, 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 April 19, 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.
FiledOctober 19, 1987
PublishedApril 27, 1988
GrantedJanuary 2, 1992
Term endedOctober 19, 2007
Application numberEP 87309193
Classification (CPC)C07F9/657154 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedOct 19, 1987PublishedApril 27, 1988Patent grantedJan 2, 1992Term endedOct 19, 2007

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