US Patent 7308933 Power assisted lift for lubricator assembly
Patent 7308933 was granted and assigned to Paal on December, 2007 by the United States Patent and Trademark Office.
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Patent Inventor Names
Robert L. Moore0
Windel O. Mayfield0
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Patent abstract
An improved lubricator assembly for receiving a well plunger or other downhole tool wherein a hinge is connected between a lower portion and an upper riser of the lubricator assembly and a power lifting device is included for moving the upper riser off of and onto the lower portion of the lubricator assembly.
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US Patent 07308933 Power assisted lift for lubricator assembly US Patent 7308933 Power assisted lift for lubricator assembly
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Patent Number
07308933
Patent Number
7308933
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US Patent 07308933 Power assisted lift for lubricator assembly
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Is a
Current assignee
Patent jurisdiction
Patent number
07308933
Date of patent
December 18, 2007
Patent application number
10985369
Date Filed
November 10, 2004
Patent primary examiner
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