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Expired European patentEurope

Polydisperse propylene polymer and process for producing the same

EP 1004603 B1 · Applicant: CHISSO CORPORATION

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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 August 13, 1998 and granted January 15, 2003. A European patent lasts at most 20 years from filing, so its term ended August 13, 2018.
  • 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 February 13, 2024.
  • 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.
FiledAugust 13, 1998
PublishedMay 31, 2000
GrantedJanuary 15, 2003
Term endedAugust 13, 2018
Application numberEP 98937812
Classification (CPC)C08F10/06

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedAug 13, 1998PublishedMay 31, 2000Patent grantedJan 15, 2003Term endedAug 13, 2018

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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