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Expired European patentEurope

Process for plasticization and pumping of low bulk density plastics

EP 0105233 B1 · Applicant: UNION CARBIDE CORPORATION

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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 September 12, 1983 and granted March 9, 1988. A European patent lasts at most 20 years from filing, so its term ended September 12, 2003.
  • 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 March 12, 2009.
  • 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.
FiledSeptember 12, 1983
PublishedApril 11, 1984
GrantedMarch 9, 1988
Term endedSeptember 12, 2003
Application numberEP 83108996
Classification (CPC)B29C48/37 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedSep 12, 1983PublishedApril 11, 1984Patent grantedMarch 9, 1988Term endedSep 12, 2003

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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