US3142338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tools
Assignee: Individual
•
Filing: 1960-11-14
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Granted: 1964-07-28
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:40
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A WELL TOOL ASSEMBLY INCLUDING, A TUBULAR SUPPORT ADAPTED TO BE CONNECTED IN A WELL PIPE STRING AND LOWERED IN A WELL BORE, AN UPPER GRIPPING MEANS MOUNTED ON THE SUPPORT AND MOVABLE INTO GRIPPING POSITION TO LOCK THE ASSEMBLY AGAINST MOVEMENT IN ONE DIRECTION WITHIN THE WELL BORE, A LOWER GRIPPING MEANS MOUNTED ON THE SUPPORT AND MOVABLE INTO GRIPPING POSITION TO LOCK THE ASSEMBLY AGAINST MOVEMENT IN THE OTHER DIRECTION WITHIN SAID WELL BORE, A HYDRAULICALLY-ACTUATED PART MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE UPPER GRIPPING MEANS TO MOVE SAID GRIPPING MEANS INTO GRIPPING POSITION WHEN SAID PART IS ACTUATED, A SECOND HYDRAULICALLYACTUATED PART MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE LOWER GRIPPING MEANS TO MOVE SAID LOWER GRIPPING MEANS INTO GRIPPING POSITION WHEN SAID PART IS ACTUATED, THE TUBULAR SUPPORT HAVING MEANS FOR CONDUCTING PRESSURE FLUID FROM THE TUBULAR SUPPORT TO THE HYDRAUCLICALLY-ACTUATED PARTS TO OPERATE THE SAME AND THEREBY MOVE THE UPPER AND LOWER GRIPPING MEANS INTO GRIPPING POSITION, AND NORMALLY INACTIVE MEANS FORMING PART OF THE TUBULAR SUPPORT ADAPTED WHEN ACTUATED TO ENGAGE AND
Claim 2
Dependent Claim
181 words
A WELL TOOL ASSEMBLY INCLUDING, A TUBULAR SUPPORT ADAPTED TO BE CONNECTED IN A WELL PIPE STRING AND LOWERED IN A WELL BORE, AN UPPER GRIPPING MEANS MOUNTED ON THE SUPPORT AND MOVABLE INTO GRIPPING POSITION TO LOCK THE ASSEMBLY AGAINST MOVEMENT IN ONE DIRECTION WITHIN THE WELL BORE, A LOWER GRIPPING MEANS MOUNTED ON THE SUPPORT AND MOVABLE INTO GRIPPING POSITION TO LOCK THE ASSEMBLY AGAINST MOVEMENT IN THE OTHER DIRECTION WITHIN SAID WELL BORE, A HYDRAULICALLY-ACTUATED PART MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE UPPER GRIPPING MEANS TO MOVE SAID GRIPPING MEANS INTO GRIPPING POSITION WHEN SAID PART IS ACTUATED, A SECOND HYDRAULICALLYACTUATED PART MOUNTED ON THE SUPPORT AND ENGAGEABLE WITH THE LOWER GRIPPING MEANS TO MOVE SAID LOWER GRIPPING MEANS INTO GRIPPING POSITION WHEN SAID PART IS ACTUATED, THE TUBULAR SUPPORT HAVING MEANS FOR CONDUCTING PRESSURE FLUID FROM THE TUBULAR SUPPORT TO THE HYDRAUCLICALLY-ACTUATED PARTS TO OPERATE THE SAME AND THEREBY MOVE THE UPPER AND LOWER GRIPPING MEANS INTO GRIPPING POSITION, AND NORMALLY INACTIVE MEANS FORMING PART OF THE TUBULAR SUPPORT ADAPTED WHEN ACTUATED TO ENGAGE AND
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |