Patent US3305015A successfully refreshed from Google Patents.
US3305015A
Expired / Lapsed
US
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Tubing head apparatus and method
Assignee: Atlantic Richfield Co
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Filing: 1963-09-20
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Granted: 1967-02-21
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
- 👤 Jr Charles E Wakefield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:25
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN UNDERWATER TUBING HEAD APPARATUS FOR CONTROLLING THE FLOW OF OIL AND GAS FROM A WELL DRILLED IN A FORMATION UNDERLYING A BODY OF WATER, COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A SIDE OUTLET, A SECOND TUBULAR MEMBER HAVING A SIDE OUTLET ADJACENT THE SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER BEING DISPOSED WITHIN SAID FIRST TUBULAR MEMBER AND OF A CONFIGURATION TO FORM AN ANNULUS BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, MEANS INDEPENDENT OF WELL PRESSURE FOR MECHANICALLY LOCKING SAID SECOND TUBULAR MEMBER TO SAID FIRST TUBULAR MEMBER, MEANS FOR SEALING SAID ANNULUS ABOUT SAID OUTLET, AND MEANS FOR HYDRAULICALLY EXTRUDING SAID SEALING MEANS IN SAID ANNULUS.
Claim 2
Dependent Claim
115 words
AN UNDERWATER TUBING HEAD APPARATUS FOR CONTROLLING THE FLOW OF OIL AND GAS FROM A WELL DRILLED IN A FORMATION UNDERLYING A BODY OF WATER, COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A SIDE OUTLET, A SECOND TUBULAR MEMBER HAVING A SIDE OUTLET ADJACENT THE SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER BEING DISPOSED WITHIN SAID FIRST TUBULAR MEMBER AND OF A CONFIGURATION TO FORM AN ANNULUS BETWEEN SAID FIRST AND SECOND TUBULAR MEMBERS, MEANS INDEPENDENT OF WELL PRESSURE FOR MECHANICALLY LOCKING SAID SECOND TUBULAR MEMBER TO SAID FIRST TUBULAR MEMBER, MEANS FOR SEALING SAID ANNULUS ABOUT SAID OUTLET, AND MEANS FOR HYDRAULICALLY EXTRUDING SAID SEALING MEANS IN SAID ANNULUS.
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |