US2941370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offshore platforms
Assignee: WESTERN GULF OIL CO
•
Filing: 1956-01-19
•
Granted: 1960-06-21
•
Expires: 1976-01-19
Abstract
No abstract record available.
Inventors
- 👤 Walker Edward Wilfrid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/021; E02B2017/0056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US937612A
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US1094033A
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US1868494A
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US2077044A
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US2187871A
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US2416848A
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US2637978A
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US2600761A
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US2777669A
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US2775095A
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US2579703A
Cited
US2772539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |