US3358765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for freeing a well tool and cable
Assignee: Schlumberger Technology Corp
•
Filing: 1966-01-26
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Granted: 1967-12-19
•
Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 Blanc Edward R Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:35
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/12; E21B31/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A METHOD FOR FREEING A WELL TOOL DEPENDENTLY SUSPENDED FROM A SUSPENSION CABLE END LODGED IN A WELL BORE COMPRISING THE STEPS OF; COUPLING A FIRST MEMBER TO THE WELL TOOL; COUPLING A SECOND MEMBER TO THE SUSPENSION CABLE ABOVE SAID FIRST MEMBER; MOVING SAID FIRST AND SECOND MEMBERS APART WITH SUFFICIENT FORCE TO SEPARATE AT LEAST
Claim 2
Independent Claim
57 words
A METHOD FOR FREEING A WELL TOOL DEPENDENTLY SUSPENDED FROM A SUSPENSION CABLE END LODGED IN A WELL BORE COMPRISING THE STEPS OF; COUPLING A FIRST MEMBER TO THE WELL TOOL; COUPLING A SECOND MEMBER TO THE SUSPENSION CABLE ABOVE SAID FIRST MEMBER; MOVING SAID FIRST AND SECOND MEMBERS APART WITH SUFFICIENT FORCE TO SEPARATE AT LEAST
References Cited (Backward Citations)
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US1620382A
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US1855853A
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US1785299A
Cited
US2249358A
Cited
US2286550A
Cited
US2794619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |