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Expired European patentEurope

Process cartridge and image forming apparatus

EP 0770932 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 June 15, 1993 and granted August 25, 1999. A European patent lasts at most 20 years from filing, so its term ended June 15, 2013.
  • 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 December 15, 2018.
  • 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.
FiledJune 15, 1993
PublishedMay 2, 1997
GrantedAugust 25, 1999
Term endedJune 15, 2013
Application numberEP 97200004
Classification (CPC)G03G15/0881 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJune 15, 1993PublishedMay 2, 1997Patent grantedAug 25, 1999Term endedJune 15, 2013

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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