US3454083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fail-safe subsea fluid transportation system
Assignee: Mobil Oil AS
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Filing: 1967-06-29
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Granted: 1969-07-08
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Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Warren B Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:19
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B43/017; B; B63; B63C; B63C11/00; B63C11/34; B63C11/36; B63G; B63G8/00; B63G8/40; B63G2008/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |