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Expired European patentEurope

Composition and method for controlling biological growth using stabilized sodium hypobromite in synergistic combinations

EP 1493333 B1 · Applicant: NALCO CHEMICAL COMPANY

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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 August 11, 2000 and granted March 12, 2014. A European patent lasts at most 20 years from filing, so its term ended August 11, 2020.
  • 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 February 11, 2026.
  • 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.
FiledAugust 11, 2000
PublishedJanuary 5, 2005
GrantedMarch 12, 2014
Term endedAugust 11, 2020
Application numberEP 04022539
Classification (CPC)C02F1/50 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedAug 11, 2000PublishedJan 5, 2005Patent grantedMarch 12, 2014Term endedAug 11, 2020

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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