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Expired European patentEurope

Liquid developer compositions

EP 0670525 B1 · Applicant: XEROX CORPORATION

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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 February 16, 1995 and granted November 28, 2001. A European patent lasts at most 20 years from filing, so its term ended February 16, 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 August 16, 2020.
  • 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.
FiledFebruary 16, 1995
PublishedSeptember 6, 1995
GrantedNovember 28, 2001
Term endedFebruary 16, 2015
Application numberEP 95301009
Classification (CPC)G03G9/135 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedFeb 16, 1995PublishedSep 6, 1995Patent grantedNov 28, 2001Term endedFeb 16, 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.