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Expired European patentEurope

Non-tin-based, low toxicity anti-fouling agents

EP 0449975 B1 · Applicant: BATTELLE MEMORIAL INSTITUTE

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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 20, 1989 and granted April 23, 1997. A European patent lasts at most 20 years from filing, so its term ended December 20, 2009.
  • 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 June 20, 2015.
  • 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 20, 1989
PublishedOctober 9, 1991
GrantedApril 23, 1997
Term endedDecember 20, 2009
Application numberEP 90901469
Classification (CPC)C09D5/1625

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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