PORTABLE DRILLING MAST STRUCTURE

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20070074460A1
SERIAL NO

11463333

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A portable drilling mast structure comprising a lower drilling mast having a lower end pivotally coupled to a base. A hinge is coupled to an upper end of the lower drilling mast and a lower end of an upper drilling mast. The drilling mast structure has a first position wherein the lower drilling mast is parallel to the base and the upper drilling mast is disposed between the lower drilling mast and the base. The drilling mast structure has a second position wherein the lower drilling mast is perpendicular to the base and the upper drilling mast is aligned with the lower drilling mast.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL-OILWELL L P10000 RICHMOND AVENUE SUITE 400 HOUSTON TX 77042-4200

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Belik, Jaroslav Pearland, TX 33 829

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