Patent US3605414A successfully refreshed from Google Patents.
US3605414A
Expired / Lapsed
US
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Submerged well head platform
Assignee: Individual
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Filing: 1968-11-27
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Granted: 1971-09-20
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Expires: 1988-11-27
Abstract
Abstract THE INVENTION RELATES TO AN OFFSHORE PLATFORM ADAPTED TO BE SUBMERGED AND POSITIONED ON THE FLOOR OF A BODY OF WATER WHEREBY TO SUPPORT AN UNDER WATER WELL HEAD OR SIMILAR EQUIPMENT A PREDETERMINED DISTANCE ABOVE THE FLOOR. THE PLATFORM IS PARTICULARLY ADAPTED FOR USE IN A SUBSTRATUM CHARACTERIZED BY AN UNCONSOLIDATED OR MUDDY COMPOSITION WHICH WOULD ORDINARILY BE INADEQUATE TO STABLY SUPPORT THE WELL HEAD AS WELL AS DRILLING CASING AND THE LIKE. A PRIMARY SUPPORT FACTOR IS CONTRIBUTED BY A FOUNDATION PAD CONNECTED TO, AND DEPENDING FROM THE CONDUCTOR PIPE, WHICH PAD IS SUPPORTED AT THE OCEAN FLOOR THEREBY ESTABLISHING A FIRM HOUSING FOR THE CONDUCTOR PIPE.
Inventors
- 👤 Joseph W Westmoreland Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:18
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/12; E21B7/128; E21B41/00; E21B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |