Ball operated by-pass tool for use in drillstring
Details for Australian Patent Application No. 2003269103 (hide)
International Classifications
Event Publications
15 January 2004 Complete Application Filed
Priority application(s): 0220447.7 03.09.02 GB
13 May 2004 Application Open to Public Inspection
Published as AU-B-2003269103
17 April 2008 Application Accepted
Published as AU-B-2003269103
14 August 2008 Standard Patent Sealed
27 October 2011 Assignment Registered
Lee, Paul The patent has been assigned to Schoeller-Bleckmann Oilfield Equipment AG
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