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Expired European patentEurope

A freeze resistant ink jet ink comprising polyethylene glycol and diethylene glycol

EP 1700892 B1 · Applicant: Brother Kogyo Kabushiki Kaisha

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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 8, 2006 and granted January 27, 2010. A European patent lasts at most 20 years from filing, so its term ended March 8, 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.
FiledMarch 8, 2006
PublishedSeptember 13, 2006
GrantedJanuary 27, 2010
Term endedMarch 8, 2026
Application numberEP 06251235
Classification (CPC)D06P5/30 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMarch 8, 2006PublishedSep 13, 2006Patent grantedJan 27, 2010Term endedMarch 8, 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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