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Expired European patentEurope

Process for the gas phase polymerization of alpha-olefins

EP 0695313 B1 · Applicant: MONTELL NORTH AMERICA 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 February 15, 1995 and granted January 28, 1998. A European patent lasts at most 20 years from filing, so its term ended February 15, 2015.
  • 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 August 15, 2020.
  • 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.
FiledFebruary 15, 1995
PublishedFebruary 7, 1996
GrantedJanuary 28, 1998
Term endedFebruary 15, 2015
Application numberEP 95910484
Classification (CPC)B01J8/0015 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedFeb 15, 1995PublishedFeb 7, 1996Patent grantedJan 28, 1998Term endedFeb 15, 2015

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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