Sealed derrick structure for polar vessels

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9205894
APP PUB NO 20130291780A1
SERIAL NO

13881368

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Provided is an enclosed derrick structure of an arctic ship, which provides an installation space for an exhaust unit at an upper portion of an enclosed derrick. The enclosed derrick structure of the arctic ship includes: an enclosed derrick; a crown block section disposed at an upper portion of the enclosed derrick such that a crown block is installed and an installation workspace is formed thereinside; and an exhaust unit installed in the installation workspace to communicate with the exterior.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
TRANSOCEAN SEDCO FOREX VENTURES LIMITEDGEORGE TOWN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brittin, D Scott Katy, US 6 7
Lee, Yu Young Gyeongsangnam-do, KR 5 5

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 8, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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