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Expired European patentEurope

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EP 0628895 B1 · Applicant: WALCA SA

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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 May 28, 1993 and granted April 19, 1995. A European patent lasts at most 20 years from filing, so its term ended May 28, 2013.
  • 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 November 28, 2018.
  • 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.
FiledMay 28, 1993
PublishedDecember 14, 1994
GrantedApril 19, 1995
Term endedMay 28, 2013
Application numberEP 93810390
Classification (CPC)G04B39/02 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedMay 28, 1993PublishedDec 14, 1994Patent grantedApril 19, 1995Term endedMay 28, 2013

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.