US3217805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine well completion apparatus
Assignee: Pan American Petroleum Corp
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Filing: 1963-05-16
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Granted: 1965-11-16
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Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 George C Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:30
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035; Y; Y10; Y10S; Y10S285/00; Y10S285/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
APPARATUS FOR COMPLETING A WELL AT A MARINE LOCATION COMPRISING A SLIP JOINT MADE UP OF AN INNER CYLINDRICAL HOLLOW MANDREL AND AN OUTER BARREL, MEANS FOR FORMING A SLIDING SEAL BETWEEN SAID MANDREL AND SAID BARREL, MEANS FOR CONNECTING THE BOTTOM OF SAID SLIP JOINT TO THE WELL CASING, A WELL HEAD ATTACHED TO THE TOP OF SAID SLIP JOINT, SAID WELL HEAD INCLUDING MEANS FOR SUPPORTING A TUBING STRING THEREIN, AND MEANS FOR RAISING AND LOWERING SAID WELL HEAD, THE LENGTH OF SAID SLIP JOINT BEING SUFFICIENT TO PERMIT SAID WELL HEAD TO BE LIFTED ABOVE THE SURFACE OF THE WATER, AND LOWERED TO A LEVEL SUFFICIENTLY LOW TO AVOID SHIPS, SERIOUS WAVE ACTION AND THE LIKE.
Claim 2
Dependent Claim
119 words
APPARATUS FOR COMPLETING A WELL AT A MARINE LOCATION COMPRISING A SLIP JOINT MADE UP OF AN INNER CYLINDRICAL HOLLOW MANDREL AND AN OUTER BARREL, MEANS FOR FORMING A SLIDING SEAL BETWEEN SAID MANDREL AND SAID BARREL, MEANS FOR CONNECTING THE BOTTOM OF SAID SLIP JOINT TO THE WELL CASING, A WELL HEAD ATTACHED TO THE TOP OF SAID SLIP JOINT, SAID WELL HEAD INCLUDING MEANS FOR SUPPORTING A TUBING STRING THEREIN, AND MEANS FOR RAISING AND LOWERING SAID WELL HEAD, THE LENGTH OF SAID SLIP JOINT BEING SUFFICIENT TO PERMIT SAID WELL HEAD TO BE LIFTED ABOVE THE SURFACE OF THE WATER, AND LOWERED TO A LEVEL SUFFICIENTLY LOW TO AVOID SHIPS, SERIOUS WAVE ACTION AND THE LIKE.
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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |