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Expired European patentEurope

Improved chelator for anaerobic sealants

EP 0282292 B1 · Applicant: LOCTITE (IRELAND) Ltd.

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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 March 10, 1988 and granted April 29, 1992. A European patent lasts at most 20 years from filing, so its term ended March 10, 2008.
  • 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 September 10, 2013.
  • 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 10, 1988
PublishedSeptember 14, 1988
GrantedApril 29, 1992
Term endedMarch 10, 2008
Application numberEP 88302068
Classification (CPC)C09K3/10

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedMarch 10, 1988PublishedSep 14, 1988Patent grantedApril 29, 1992Term endedMarch 10, 2008

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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