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Expired European patentEurope

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EP 0453429 B1 · Applicant: BLAGDEN INDUSTRIES PUBLIC LIMITED COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 February 27, 1991 and granted October 13, 1993. A European patent lasts at most 20 years from filing, so its term ended February 27, 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 August 27, 2016.
  • 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.
FiledFebruary 27, 1991
PublishedOctober 23, 1991
GrantedOctober 13, 1993
Term endedFebruary 27, 2011
Application numberEP 91870034
Classification (CPC)B65D7/045

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 27, 1991PublishedOct 23, 1991Patent grantedOct 13, 1993Term endedFeb 27, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.