US3310107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater well method and apparatus
Assignee: FMC Corp
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Filing: 1963-10-23
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Granted: 1967-03-21
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 John R Yancey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:50
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/01; E21B33/00; E21B33/02; E21B33/03; E21B33/035
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
IN A METHOD FOR COMPLETING A WELL THROUGH A WELLHEAD AND A BLOWOUT PREVENTER ATTACHED TO THE TOP OF THE WELLHEAD, THE STEPS OF LOWERING A STRING OF PIPE THROUGH SAID PREVENTER AND WELLHEAD, HANGING SAID STRING IN THE WELLHEAD IN FLUID-TIGHT RELATION THEREWITH, SAID STRING BEING BLOCKED TO THE FLOW OF FLUID UPWARD THEREIN FROM THE WELL INTO THE WELLHEAD, REPLACING THE BLOWOUT PREVENTER WITH A FLOW LINE AND ATTACHED FLOW LINE ADAPTER THAT CONNECTS TO SAID WELLHEAD AND ESTABLISHES FLUID COMMUNICATION BETWEEN SAID STRING AND SAID FLOW LINE, AND OPENING SAID STRING TO THE PASSAGE OF FLUID UPWARD THROUGH SAID STRING, INTO SAID WELLHEAD AND ADAPTER, AND INTO SAID FLOW LINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |