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Expired European patentEurope

Method for controlling the melting points and molecular weights of syndiotactic polyolefins using metallocene catalyst systems

EP 0773239 B1 · Applicant: FINA TECHNOLOGY, INC.

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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 June 22, 1993 and granted December 5, 2001. A European patent lasts at most 20 years from filing, so its term ended June 22, 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 December 22, 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.
FiledJune 22, 1993
PublishedMay 14, 1997
GrantedDecember 5, 2001
Term endedJune 22, 2013
Application numberEP 97100762
Classification (CPC)C08F10/00 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJune 22, 1993PublishedMay 14, 1997Patent grantedDec 5, 2001Term endedJune 22, 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

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