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Expired European patentEurope

Dye set for improved color quality for ink-jet printers

EP 0877064 B1 · Applicant: Hewlett-Packard Company

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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.

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Why it's free to use

  • Filed April 30, 1998 and granted March 31, 2004. A European patent lasts at most 20 years from filing, so its term ended April 30, 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 30, 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 30, 1998
PublishedNovember 11, 1998
GrantedMarch 31, 2004
Term endedApril 30, 2018
Application numberEP 98303377
Classification (CPC)C09D11/40

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedApril 30, 1998PublishedNov 11, 1998Patent grantedMarch 31, 2004Term endedApril 30, 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

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