Aqueous-based oil well drilling fluids containing high amylose starch polymers

Details for Australian Patent Application No. 2003200789 (hide)

Owner Elementis Specialties, Inc.

Inventors Dino, David

Agent Baldwin Shelston Waters

Pub. Number AU-A-2003200789

Priority 10/107119 28.03.02 US

Filing date 4 March 2003

Wipo publication date 16 October 2003

International Classifications

C09K 007/02

Event Publications

20 March 2003 Complete Application Filed

  Priority application(s): 10/107119 28.03.02 US

16 October 2003 Application Open to Public Inspection

  Published as AU-A-2003200789

2 October 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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