Nonstructural buoyancy can

Details for Australian Patent Application No. 2002238025 (hide)

Owner ExxonMobil Upstream Research Company

Inventors Berner, Paul; Mortazavi, Mehrdad; Campbell, Brad, R.

Agent Watermark

Pub. Number AU-B-2002238025

PCT Pub. Number WO2002/063127

Priority 60/266,583 05.02.01 US

Filing date 4 February 2002

Wipo publication date 19 August 2002

Acceptance publication date 19 April 2007

International Classifications

E21B 17/01 (2006.01) Drilling rods or pipes

Event Publications

13 February 2003 Application Open to Public Inspection

  Published as AU-B-2002238025

19 April 2007 Application Accepted

  Published as AU-B-2002238025

16 August 2007 Standard Patent Sealed

28 August 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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