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Expired European patentEurope

Resin blends of maleic anhydride grafts of olefin polymers for extrusion coating onto metal foil substrates

EP 0504386 B1 · Applicant: THE DOW CHEMICAL COMPANY

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Overview

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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 October 15, 1991 and granted February 11, 1998. A European patent lasts at most 20 years from filing, so its term ended October 15, 2011.
  • 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 April 15, 2017.
  • 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.
FiledOctober 15, 1991
PublishedSeptember 23, 1992
GrantedFebruary 11, 1998
Term endedOctober 15, 2011
Application numberEP 91919683
Classification (CPC)C08L51/06 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedOct 15, 1991PublishedSep 23, 1992Patent grantedFeb 11, 1998Term endedOct 15, 2011

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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