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Expired European patentEurope

Silver halide photographic material

EP 0452848 B1 · Applicant: FUJI PHOTO FILM CO., LTD.

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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 April 15, 1991 and granted March 26, 1997. A European patent lasts at most 20 years from filing, so its term ended April 15, 2011.
  • 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 October 15, 2016.
  • 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.
FiledApril 15, 1991
PublishedOctober 23, 1991
GrantedMarch 26, 1997
Term endedApril 15, 2011
Application numberEP 91105967
Classification (CPC)G03C1/46 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedApril 15, 1991PublishedOct 23, 1991Patent grantedMarch 26, 1997Term endedApril 15, 2011

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