PRODUCING MALEIC ANHYDRIDE FROM A C4 STREAM IN A OXYGENATE TO OLEFIN PROCESS

Details for Australian Patent Application No. 2002316130 (hide)

Owner EXXONMOBIL CHEMICAL PATENTS INC.

Inventors CHENG, Minquan; RAO, Krishna, K.

Pub. Number AU-A-2002316130

PCT Number PCT/US02/15780

PCT Pub. Number WO2003/006414

Priority 60/304,942 12.07.01 US

Filing date 17 May 2002

Wipo publication date 29 January 2003

International Classifications

C07C 051/00 Preparation of carboxylic acids or their salts, halides, or anhydrides

Event Publications

9 January 2003 Complete Application Filed

  Priority application(s): 60/304,942 12.07.01 US

22 May 2003 Application Open to Public Inspection

  Published as AU-A-2002316130

8 April 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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