Mobile drilling rig with replaceable dolly

United States of America Patent

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Dec 8, 2009
Grant Date
Sep 20, 2007
app pub date
Mar 15, 2006
filing date
Mar 15, 2006

priority date (Note)
Expired

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Abstract

are provided each for supporting a portion of the carrier frame, and include a first plurality of wheels on a first plurality of axles. Each dolly assembly is adaptive for selective attachment to and detachment from the carrier frame, so that the dolly assemblies may be changed out for compliance with regulations and road conditions.

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Patent Owner(s)

Patent Owner	Address
XTREME DRILLING AND COIL SERVICES CORP	1402-500 4TH AVE S W CALGARY ALBERTA T2P 2V6

International Classification(s)

E21B:EARTH OR ROCK DRILLING

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Havinga, Richard D	Okotoks , CA	10	186
Wood, Thomas D	Calgary , CA	23	309

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Mobile drilling rig with replaceable dolly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11375928

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PATENT NO	7628229
APP PUB NO	20070215359A1
SERIAL NO	11375928
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
December 08, 2009	US,7628229,B2 US7628229B2	GRANTED PATENT AS SECOND PUBLICATION
September 20, 2007	US,20070215359,A1 US20070215359A1	FIRST PUBLISHED PATENT APPLICATION

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11375928

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