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Expired European patentEurope

Process for after passivating phosphated metal surfaces using titanium and/or manganese and/or cobalt and/or nickel and/or copper cations containing solutions

EP 0149720 B1 · Applicant: Gerhard Collardin GmbH

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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 17, 1984 and granted October 26, 1988. A European patent lasts at most 20 years from filing, so its term ended September 17, 2004.
  • 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 17, 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.
FiledSeptember 17, 1984
PublishedJuly 31, 1985
GrantedOctober 26, 1988
Term endedSeptember 17, 2004
Application numberEP 84111060
Classification (CPC)C23C22/83

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedSep 17, 1984PublishedJuly 31, 1985Patent grantedOct 26, 1988Term endedSep 17, 2004

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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