US3533030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wellhead assembly to aid relocation of subsea wells
Assignee: Mobil Oil AS
•
Filing: 1968-09-25
•
Granted: 1970-10-06
•
Expires: 1988-09-25
Abstract
No abstract record available.
Inventors
- 👤 Wallace B Allen
- 👤 Floyd E Blount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:46
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/0007; E21B41/0014; E21B33/00; E21B33/02; E21B33/03; E21B33/035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3027951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |