Patent Yard Sign in
Expired European patentEurope

Manufacturing method for polycarbonate

EP 0779312 B1 · Applicant: GENERAL ELECTRIC COMPANY

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 December 10, 1996 and granted May 3, 2000. A European patent lasts at most 20 years from filing, so its term ended December 10, 2016.
  • 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 10, 2022.
  • 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 10, 1996
PublishedJune 18, 1997
GrantedMay 3, 2000
Term endedDecember 10, 2016
Application numberEP 96308931
Classification (CPC)C08G64/307

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedDec 10, 1996PublishedJune 18, 1997Patent grantedMay 3, 2000Term endedDec 10, 2016

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.