US2863293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine drilling rig
Assignee: Noble Drilling Corp
•
Filing: 1954-09-21
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Granted: 1958-12-09
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Expires: 1974-09-21
Abstract
No abstract record available.
Inventors
- 👤 Harold V Plumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:51
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B2017/0056; E02B2017/0073; E02B2017/0086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2327118A
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US2367784A
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US2398351A
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US2550823A
Cited
US2656058A
Cited
US2505832A
Cited
US2600761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |