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Expired European patentEurope

Document recognition and automatic indexing for optical character recognition

EP 0481979 B1 · Applicant: EASTMAN KODAK COMPANY

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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 May 15, 1989 and granted October 20, 1993. A European patent lasts at most 20 years from filing, so its term ended May 15, 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 November 15, 2014.
  • 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.
FiledMay 15, 1989
PublishedApril 29, 1992
GrantedOctober 20, 1993
Term endedMay 15, 2009
Application numberEP 89906581
Classification (CPC)G06F40/174 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMay 15, 1989PublishedApril 29, 1992Patent grantedOct 20, 1993Term endedMay 15, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.