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Expired European patentEurope

Device for the cathodic protection of metal parts from corrosion

EP 0229115 B1 · Applicant: D 3 CATHODIC PRODUCTS-KORROSIONSSCHUTZPRODUKTE GESELLSCHAFT M.B.H.

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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 14, 1986 and granted November 28, 1990. A European patent lasts at most 20 years from filing, so its term ended July 14, 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 14, 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 14, 1986
PublishedJuly 22, 1987
GrantedNovember 28, 1990
Term endedJuly 14, 2006
Application numberEP 86904027
Classification (CPC)C23F13/02

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJuly 14, 1986PublishedJuly 22, 1987Patent grantedNov 28, 1990Term endedJuly 14, 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

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