Method for preparing oxydiphthalic anhydrides using bicarbonate as catalyst

Details for Australian Patent Application No. 2004215434 (hide)

International Classifications

Event Publications

29 September 2005 PCT application entered the National Phase

PCT publication WO2004/076436 Priority application(s): WO2004/076436

5 June 2008 Assignment before Grant

General Electric Company The application has been assigned to SABIC Innovative Plastics IP B.V.

20 August 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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