Self-contained offshore platform
Patent 4227831 Issued on October 14, 1980. Estimated Expiration Date: 
April 4, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 4, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3266208 3380520 3528497 3564802 InventorAssigneeApplicationNo. 05/893432 filed on 04/04/1978US Classes:405/196, With work deck vertically adjustable relative to floor175/7, Boring from floating support with submerged independent anchored guide base405/203Floatable to site and supported by marine floorExaminersPrimary: Stein, MervinAttorney, Agent or FirmInternational ClassesE02B 17/02 (20060101)E02B 17/00 (20060101) AbstractA self-contained jack up type drilling and production platform structure comprising a flotatable barge-like hull with support legs which can be jacked up and down to lower and raise the hull with respect to the surface of the sea. A removeable drilling module rests on top of the hull and extends over an opening therein between two of the support legs. Production equipment is arranged in the hull and communicates with the opening. Moveable conductor supports extend between the legs of the platform and serve to brace the drill string and production conduit conductors. | |
