Patent US3353596A successfully refreshed from Google Patents.
US3353596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing hanger and method of testing packing thereon
Assignee: Atlantic Richfield Co
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Filing: 1965-06-30
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Granted: 1967-11-21
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN UNDERWATER TUBING HEAD APPARATUS FOR PRODUCING A WELL DRILLED IN A FORMATION UNDERLYING A BODY OF WATER, COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A SIDE OUTLET AND A SECOND TUBULAR MEMBER HAVING A SIDE OUTLET IN AXIAL REGISTRY WITH THE SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER BEING DISPOSED WITHIN SAID FIRST TUBULAR MEMBER, MEANS INCLUDING A LOCKING MEMBER FOR AUTOMATICALLY LOCKING SAID SECOND TUBULAR MEMBER AGAINST AXIAL MOVEMENT AS SAID SECOND TUBULAR MEMBER IS LOWERED TO A POSITION WHERE SAID SIDE OUTLET OF SAID SECOND TUBULAR MEMBER ARE IN AXIAL REGISTRY WITH SAID SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, MEANS FOR BIASING SAID LOCKING MEMBER TO LOCKING POSITION, AND MEANS INDEPENDENT OF WELL PRESSURE ENGAGEABLE WITH SAID LOCKING MEMBER TO HOLD SAID LOCKING MEMBER IN SAID LOCKING POSITION.
Claim 2
Dependent Claim
137 words
AN UNDERWATER TUBING HEAD APPARATUS FOR PRODUCING A WELL DRILLED IN A FORMATION UNDERLYING A BODY OF WATER, COMPRISING IN COMBINATION: A FIRST TUBULAR MEMBER HAVING A SIDE OUTLET AND A SECOND TUBULAR MEMBER HAVING A SIDE OUTLET IN AXIAL REGISTRY WITH THE SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, SAID SECOND TUBULAR MEMBER BEING DISPOSED WITHIN SAID FIRST TUBULAR MEMBER, MEANS INCLUDING A LOCKING MEMBER FOR AUTOMATICALLY LOCKING SAID SECOND TUBULAR MEMBER AGAINST AXIAL MOVEMENT AS SAID SECOND TUBULAR MEMBER IS LOWERED TO A POSITION WHERE SAID SIDE OUTLET OF SAID SECOND TUBULAR MEMBER ARE IN AXIAL REGISTRY WITH SAID SIDE OUTLET OF SAID FIRST TUBULAR MEMBER, MEANS FOR BIASING SAID LOCKING MEMBER TO LOCKING POSITION, AND MEANS INDEPENDENT OF WELL PRESSURE ENGAGEABLE WITH SAID LOCKING MEMBER TO HOLD SAID LOCKING MEMBER IN SAID LOCKING POSITION.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |