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Expired European patentEurope

A programming controller for a controller for electrical circuit systems and apparatus

EP 0002138 B1 · Applicant: CUTLER-HAMMER WORLD TRADE, INC.

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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 November 22, 1978 and granted April 14, 1982. A European patent lasts at most 20 years from filing, so its term ended November 22, 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 May 22, 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.
FiledNovember 22, 1978
PublishedMay 30, 1979
GrantedApril 14, 1982
Term endedNovember 22, 1998
Application numberEP 78300655
Classification (CPC)G05B19/056

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedNov 22, 1978PublishedMay 30, 1979Patent grantedApril 14, 1982Term endedNov 22, 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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