US3566608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for transportable off-shore island
Assignee: Individual
•
Filing: 1969-02-24
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Granted: 1971-03-02
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Expires: 1989-02-24
Abstract
Abstract A LEG SUPPORTING A MARITIME PLATFORM COMPRISES A BUOYANT BASE HELD SUBMERGED BY A WEIGHT RESTING ON THE SEA BOTTOM, THE WEIGHT BEING TIED TO THE BASE BY A HOISTING CABLE WHOSE TENSION CONTROLS A PAIR OF VALVES FOR PARTLY FLOODING OR VENTING THE BASE TO REDUCE OR INCREASE ITS BUOYANCY IN A MANNER COMPENSATING FOR CHANGES IN THE LOAD OF THE PLATFORM.
Inventors
- 👤 Hubertus Ramme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:58
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/09; B; B63; B63B; B63B35/00; B63B35/44; B63B35/4413; E21B15/00; E21B15/02
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |