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Expired European patentEurope

Rapidly processable silver halide photographic light-sensitive element and processing method therefore

EP 0286331 B1 · Applicant: KONICA CORPORATION

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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 March 31, 1988 and granted February 1, 1995. A European patent lasts at most 20 years from filing, so its term ended March 31, 2008.
  • 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 1, 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.
FiledMarch 31, 1988
PublishedOctober 12, 1988
GrantedFebruary 1, 1995
Term endedMarch 31, 2008
Application numberEP 88302950
Classification (CPC)G03C1/815 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedMarch 31, 1988PublishedOct 12, 1988Patent grantedFeb 1, 1995Term endedMarch 31, 2008

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