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Expired European patentEurope

Danger detection device with detector

EP 0041952 B1 · Applicant: CERBERUS AG

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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 September 22, 1980 and granted July 10, 1985. A European patent lasts at most 20 years from filing, so its term ended September 22, 2000.
  • 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 March 22, 2006.
  • 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.
FiledSeptember 22, 1980
PublishedDecember 23, 1981
GrantedJuly 10, 1985
Term endedSeptember 22, 2000
Application numberEP 80901773
Classification (CPC)G08B17/107

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedSep 22, 1980PublishedDec 23, 1981Patent grantedJuly 10, 1985Term endedSep 22, 2000

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.