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Expired European patentEurope

Partially polymerized mixture of diethylene glycol (allyl carbonate) compounds

EP 1044227 B1 · Applicant: PPG Industries Ohio, Inc.

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Overview

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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 December 16, 1998 and granted April 28, 2004. A European patent lasts at most 20 years from filing, so its term ended December 16, 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 June 16, 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.
FiledDecember 16, 1998
PublishedOctober 18, 2000
GrantedApril 28, 2004
Term endedDecember 16, 2018
Application numberEP 98963281
Classification (CPC)C08F18/24

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedDec 16, 1998PublishedOct 18, 2000Patent grantedApril 28, 2004Term endedDec 16, 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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