US3559223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long spar buoy construction and mooring method
Assignee: Global Marine Inc
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Filing: 1969-07-30
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Granted: 1971-02-02
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Expires: 1989-07-30
Abstract
Abstract A POSITIVELY BUOYANT LONG SPAR BUOY HAVING A LENGTH OF AT LEAST ABOUT 100 FEET AND A MAXIMUM BODY DIAMETER OF ABOUT 36 INCHES, THE BODY BEING FABRICATED OF LENGTHS OF PIPE RIGIDLY CONNECTED IN END-TO-END RELATION, THE BODY INCLUDING ANTI-FLOODING MEANS ADJACENT EACH INTERPIPE CONNECTION AND BEING BALLASTED TO FLOAT UPRIGHT WITH A SELECTED MINOR PORTION OF ITS LENGTH OUT OF WATER.
Inventors
- 👤 George S Lockwood Jr
- 👤 Robert K Atwater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/20; E02B3/24; B; B63; B63B; B63B22/00; B63B2211/00; B63B2211/02
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |