![]() ![]() ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Grant date Links. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ConocoPhillips Holding Co Original Assignee ConocoPhillips Holding Co Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Gerald H Orr Mcguire Lewis John W Tynan Current Assignee (The listed assignees may be inaccurate. US3209830A - Stuffing box assembly - Google Patents US3209830A - Stuffing box assembly - Google Patents Stuffing box assembly Info Publication number US3209830A US3209830A US26886563A US3209830A US 3209830 A US3209830 A US 3209830A US 26886563 A US26886563 A US 26886563A US 3209830 A US3209830 A US 3209830A Authority US Grant status Grant Patent type Prior art keywords polished rod extension tube annulus box pumping Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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