Dynamic annular pressure control ap- paratus and method

Details for Australian Patent Application No. 2003211155 (hide)

International Classifications

Event Publications

17 July 2003 Complete Application Filed

Priority application(s): 60/358,226 20.02.02 US

9 October 2003 Application Open to Public Inspection

Published as AU-B-2003211155

17 April 2008 Application Accepted

Published as AU-B-2003211155

31 July 2008 Opposition Lodged

Secure Drilling International L.P. (Bermuda) has lodged an opposition against Shell Internationale Research Maatschappij B.V.

11 September 2008 Assignment before Grant

Shell Internationale Research Maatschappij B.V. The application has been assigned to @Balance B.V.

25 June 2009 Opposition Proceeding - Application Withdrawn

The opposition by Secure Drilling International L.P. (Bermuda) against @Balance B.V has been withdrawn.

25 June 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

Application withdrawn under section 141(1). This application has been accepted or advertised accepted. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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