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Expired European patentEurope

Chromium plating process for producing non-iridescent, adherent, bright chromium deposits at high efficiencies and substantially free of cathodic low current density etching

EP 0196053 B1 · Applicant: M & T CHEMICALS, 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 March 25, 1986 and granted June 14, 1989. A European patent lasts at most 20 years from filing, so its term ended March 25, 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 September 25, 2011.
  • 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.
FiledMarch 25, 1986
PublishedOctober 1, 1986
GrantedJune 14, 1989
Term endedMarch 25, 2006
Application numberEP 86104058
Classification (CPC)C25D3/10

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 25, 1986PublishedOct 1, 1986Patent grantedJune 14, 1989Term endedMarch 25, 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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