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Expired European patentEurope

Stabilized polypropylene

EP 0003058 B1 · Applicant: CIBA-GEIGY AG

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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 December 29, 1978 and granted February 16, 1983. A European patent lasts at most 20 years from filing, so its term ended December 29, 1998.
  • 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 June 29, 2004.
  • 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.
FiledDecember 29, 1978
PublishedJuly 25, 1979
GrantedFebruary 16, 1983
Term endedDecember 29, 1998
Application numberEP 78101873
Classification (CPC)C08K5/5317 +1 more

Timeline

Timeline From EPO dates

1979198119831985198719891991199319951997Application filedDec 29, 1978PublishedJuly 25, 1979Patent grantedFeb 16, 1983Term endedDec 29, 1998

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.