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Expired European patentEurope

Photographic element and process adapted to provide high contrast development

EP 0364166 B1 · Applicant: EASTMAN KODAK COMPANY (a New Jersey 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 October 5, 1989 and granted December 18, 1996. A European patent lasts at most 20 years from filing, so its term ended October 5, 2009.
  • 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 5, 2015.
  • 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 5, 1989
PublishedApril 18, 1990
GrantedDecember 18, 1996
Term endedOctober 5, 2009
Application numberEP 89310215
Classification (CPC)G03C1/061 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedOct 5, 1989PublishedApril 18, 1990Patent grantedDec 18, 1996Term endedOct 5, 2009

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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