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Expired European patentEurope

Improvements in atom probes

EP 0231247 B1 · Applicant: CEREZO, Alfred

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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 July 22, 1986 and granted October 10, 1990. A European patent lasts at most 20 years from filing, so its term ended July 22, 2006.
  • 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 January 22, 2012.
  • 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.
FiledJuly 22, 1986
PublishedAugust 12, 1987
GrantedOctober 10, 1990
Term endedJuly 22, 2006
Application numberEP 86904320
Classification (CPC)H01J49/0004 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJuly 22, 1986PublishedAug 12, 1987Patent grantedOct 10, 1990Term endedJuly 22, 2006

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.