Tapered bearing assembly cover plate and well drilling equipment comprising same

Details for Australian Patent Application No. 2008294056 (hide)

Owner Williams, J.

Inventors Williams, John R.

Agent Shelston IP

Pub. Number AU-A-2008294056

PCT Pub. Number WO2009/029150

Priority 60/966,280 27.08.07 US; 12/082,883 15.04.08 US

Filing date 8 July 2008

Wipo publication date 5 March 2009

International Classifications

E21B 33/08 (2006.01) Sealing or packing boreholes or wells

Event Publications

4 March 2010 PCT application entered the National Phase

  PCT publication WO2009/029150 Priority application(s): WO2009/029150

14 April 2011 Assignment before Grant

  Williams, John The application has been assigned to Hampton IP Holdings Co., LLC

16 August 2012 Amendment Made

  The nature of the amendment is: Application to proceed under the number 2008101296

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