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Substantially non-crosslinked ethylene-methylacrylate copolymers grafted with a grafting agent and processes for their preparation

EP 0494875 A1 · Applicant: CHEVRON RESEARCH AND TECHNOLOGY COMPANY

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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 2, 1990 and never granted as a European patent. Had it been granted, its 20-year term would have ended August 2, 2010.
  • 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 2, 2016.
  • 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 2, 1990
PublishedJuly 22, 1992
GrantedNever granted
Term endedAugust 2, 2010
Application numberEP 90912629
Classification (CPC)C08F255/02 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedAug 2, 1990PublishedJuly 22, 1992Term endedAug 2, 2010

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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