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Expired European patentEurope

Method of removing residual toner from surface of photoconductive member for use in electrostatic copying apparatus of the transfer type

EP 0001413 B1 · Applicant: MITA INDUSTRIAL CO. LTD.

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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 September 18, 1978 and granted August 5, 1981. A European patent lasts at most 20 years from filing, so its term ended September 18, 1998.
  • 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 March 18, 2004.
  • 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.
FiledSeptember 18, 1978
PublishedApril 18, 1979
GrantedAugust 5, 1981
Term endedSeptember 18, 1998
Application numberEP 78100927
Classification (CPC)G03G21/0005

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedSep 18, 1978PublishedApril 18, 1979Patent grantedAug 5, 1981Term endedSep 18, 1998

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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