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Expired European patentEurope

Color toner, two-component type developer, image forming apparatus, color image forming method and process for producing a color toner

EP 0720063 B1 · Applicant: CANON KABUSHIKI KAISHA

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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 December 21, 1995 and granted June 28, 2000. A European patent lasts at most 20 years from filing, so its term ended December 21, 2015.
  • 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 June 21, 2021.
  • 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.
FiledDecember 21, 1995
PublishedJuly 3, 1996
GrantedJune 28, 2000
Term endedDecember 21, 2015
Application numberEP 95309363
Classification (CPC)G03G9/081 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedDec 21, 1995PublishedJuly 3, 1996Patent grantedJune 28, 2000Term endedDec 21, 2015

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.