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Expired European patentEurope

Alkali-soluble gap filling material forming composition for lithography

EP 1586945 B1 · Applicant: Nissan Chemical Industries, 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 December 25, 2003 and granted July 29, 2015. A European patent lasts at most 20 years from filing, so its term ended December 25, 2023.
  • 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.
FiledDecember 25, 2003
PublishedOctober 19, 2005
GrantedJuly 29, 2015
Term endedDecember 25, 2023
Application numberEP 03768236
Classification (CPC)H10P50/287 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedDec 25, 2003PublishedOct 19, 2005Patent grantedJuly 29, 2015Term endedDec 25, 2023

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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