Land rig
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 1, 2009
app pub date -
Jun 28, 2007
filing date -
Jun 28, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
A land rig including a mast, a substructure beneath the mast, the substructure having a top part, movement apparatus connected to the substructure, the movement apparatus connected to the mast, the movement apparatus for moving the mast and for moving the top part of the substructure. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
VARCO I/P | 10 000 RICHMOND HOUSTON TX 77042 |
International Classification(s)

- 2007 Application Filing Year
- E04H Class
- 340 Applications Filed
- 160 Patents Issued To-Date
- 47.06 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lee, Douglas Wayne | Houston, US | 1 | 56 |
# of filed Patents : 1 Total Citations : 56 | |||
McCoo, Marcus Sherwin | Katy, US | 3 | 68 |
# of filed Patents : 3 Total Citations : 68 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 56 Citation Count
- E04H Class
- 97.52 % this patent is cited more than
- 16 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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