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Expired European patentEurope

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EP 0488697 B1 · Applicant: BELLPLEX LIMITED

EPO PDF

Overview

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

Read the whole patent

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.

Why it's free to use

  • Filed November 28, 1991 and granted August 14, 1996. A European patent lasts at most 20 years from filing, so its term ended November 28, 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 May 28, 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.
FiledNovember 28, 1991
PublishedJune 3, 1992
GrantedAugust 14, 1996
Term endedNovember 28, 2011
Application numberEP 91310970
Classification (CPC)A47B96/066

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedNov 28, 1991PublishedJune 3, 1992Patent grantedAug 14, 1996Term endedNov 28, 2011

Sources & verification