US2959015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for removing marine drilling rigs
Assignee: Jersey Production Research Co
•
Filing: 1956-08-28
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Granted: 1960-11-08
•
Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert W Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:45
CPC Classifications
E; E02; E02B; E02B17/00; E21; E21B; E21B15/00; E21B15/02; E02B2017/0039; E02B2017/0047; E02B2017/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US67031A
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US2475933A
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US2829741A
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FR1112143A
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GB763864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |