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Expired European patentEurope

Photographic developer and method for developing silver halide photographic light sensitive material by use thereof

EP 0874276 B1 · Applicant: KONICA CORPORATION

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Overview

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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.

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Why it's free to use

  • Filed April 18, 1998 and granted October 4, 2000. A European patent lasts at most 20 years from filing, so its term ended April 18, 2018.
  • 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 18, 2023.
  • 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 18, 1998
PublishedOctober 28, 1998
GrantedOctober 4, 2000
Term endedApril 18, 2018
Application numberEP 98107101
Classification (CPC)G03C5/305 +1 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedApril 18, 1998PublishedOct 28, 1998Patent grantedOct 4, 2000Term endedApril 18, 2018

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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