US3075584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well tools and manipulating devices therefor
Assignee: Individual
•
Filing: 1959-02-12
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Granted: 1963-01-29
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Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:12
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1291; E21B33/1292
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A WELL DEVICE ADAPTED TO BE LOWERED INTO A WELL CASING COMPRISING, A SUPPORT PIPE, A SLEEVE ROTATABLY AND SLIDABLY MOUNTED ON THE SUPPORT PIPE, A NUT THREADED ON THE SLEEVE, MEANS ON SAID PIPE FOR SUPPORTING SAID SLEEVE AND NUT, FIRST FRICTION MEANS HAVING ELEMENTS FOR ENGAGING THE WALL OF THE WELL CASING TO RESIST ROTATION AND MEANS ASSOCIATED WITH SAID FRICTION MEANS AND ENGAGEABLE WITH THE NUT FOR RESISTING ROTATION OF THE NUT, SECOND FRICTION MEANS HAVING ELEMENTS FOR ENGAGING THE WALL OF THE WELL CASING TO RESIST ROTATION AND MEANS ASSOCIATED WITH SAID SECOND FRICTION MEANS AND ENGAGEABLE WITH THE SLEEVE FOR RESISTING ROTATION OF THE SLEEVE, FIRST SELECTIVELY ENGAGING CLUTCH MEANS CARRIED BY THE SLEEVE AND SUPPORT PIPE AT ONE END OF THE DEVICE AND ENGAGED WHEN THE SLEEVE AND PIPE
Claim 2
Dependent Claim
135 words
A WELL DEVICE ADAPTED TO BE LOWERED INTO A WELL CASING COMPRISING, A SUPPORT PIPE, A SLEEVE ROTATABLY AND SLIDABLY MOUNTED ON THE SUPPORT PIPE, A NUT THREADED ON THE SLEEVE, MEANS ON SAID PIPE FOR SUPPORTING SAID SLEEVE AND NUT, FIRST FRICTION MEANS HAVING ELEMENTS FOR ENGAGING THE WALL OF THE WELL CASING TO RESIST ROTATION AND MEANS ASSOCIATED WITH SAID FRICTION MEANS AND ENGAGEABLE WITH THE NUT FOR RESISTING ROTATION OF THE NUT, SECOND FRICTION MEANS HAVING ELEMENTS FOR ENGAGING THE WALL OF THE WELL CASING TO RESIST ROTATION AND MEANS ASSOCIATED WITH SAID SECOND FRICTION MEANS AND ENGAGEABLE WITH THE SLEEVE FOR RESISTING ROTATION OF THE SLEEVE, FIRST SELECTIVELY ENGAGING CLUTCH MEANS CARRIED BY THE SLEEVE AND SUPPORT PIPE AT ONE END OF THE DEVICE AND ENGAGED WHEN THE SLEEVE AND PIPE
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |