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Expired European patentEurope

Numerical control method

EP 0171435 B1 · Applicant: FANUC LTD.

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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 January 26, 1985 and granted September 25, 1991. A European patent lasts at most 20 years from filing, so its term ended January 26, 2005.
  • 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 July 26, 2010.
  • 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.
FiledJanuary 26, 1985
PublishedFebruary 19, 1986
GrantedSeptember 25, 1991
Term endedJanuary 26, 2005
Application numberEP 85900755
Classification (CPC)G05B19/4067

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJan 26, 1985PublishedFeb 19, 1986Patent grantedSep 25, 1991Term endedJan 26, 2005

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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