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Expired European patentEurope

Aqueous surface treating agent for metal material, surface treating method and surface-treated metal material

EP 1847633 B1 · Applicant: NIHON PARKERIZING CO., LTD.

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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 January 31, 2006 and granted August 22, 2018. A European patent lasts at most 20 years from filing, so its term ended January 31, 2026.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJanuary 31, 2006
PublishedOctober 24, 2007
GrantedAugust 22, 2018
Term endedJanuary 31, 2026
Application numberEP 06713082
Classification (CPC)C23C22/74 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedJan 31, 2006PublishedOct 24, 2007Patent grantedAug 22, 2018Term endedJan 31, 2026

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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