Patent Yard Sign in
Expired European patentEurope

Process for modifying a polyethylene in an extruder

EP 0700769 B1 · Applicant: BP CHEMICALS S.N.C.

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed August 14, 1995 and granted March 29, 2000. A European patent lasts at most 20 years from filing, so its term ended August 14, 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 February 14, 2021.
  • 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 14, 1995
PublishedMarch 13, 1996
GrantedMarch 29, 2000
Term endedAugust 14, 2015
Application numberEP 95305665
Classification (CPC)C08F8/50 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedAug 14, 1995PublishedMarch 13, 1996Patent grantedMarch 29, 2000Term endedAug 14, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.