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Expired European patentEurope

Electron-emitting device, method of manufacturing the same and image-forming apparatus

EP 0660357 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 23, 1994 and granted April 9, 2003. A European patent lasts at most 20 years from filing, so its term ended June 23, 2014.
  • 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 23, 2019.
  • 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 23, 1994
PublishedJune 28, 1995
GrantedApril 9, 2003
Term endedJune 23, 2014
Application numberEP 94109787
Classification (CPC)H01J1/316 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJune 23, 1994PublishedJune 28, 1995Patent grantedApril 9, 2003Term endedJune 23, 2014

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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