US3353608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for installing and removing flow valves
Assignee: Camco Inc
•
Filing: 1965-09-09
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Granted: 1967-11-21
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Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 Fred F Beebe
- 👤 Huston V Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:53
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/03
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
A FLOW CONTROL UNIT HANDLING APPARATUS ADAPTED FOR USE IN PLACING A FLOW CONTROL UNIT IN A SELECTED OFFSET SEAT IN A WALL TUBING AND FOR REMOVING SAID UNIT THEREFROM COMPRISING, AN ELONGATED GUIDE MEANS ADAPTED TO BE LOWERED THROUGH THE WELL TUBING AND BYPASS SAID SEAT, A SHIFTING TOOL SUPPORTED FROM SAID GUIDE MEANS AND ADAPTED TO SUPPORT A FLOW CONTROL UNIT, RELEASABLE CONNECTING MEANS COACTING BETWEEN THE GUIDE MEANS AND THE SHIFTING TOOL FOR HOLDING THE SHIFTING TOOL LONGITUDINALLY ALIGNED WITH SAID GUIDE MEANS AND AWAY FROM THE OFFSET SEAT AS THE GUIDE MEANS IS LOWERED IN THE WELL TUBING, MEANS FOR RELEASING THE CONNECTING MEANS INCLUDING A SPRING LOADED ACTUATING PIN HAVING A SHOULDER PROTRUDING UPWARDLY ADAPTED TO CONTACT A SHOULDER IN THE TUBING WHEN THE APPARATUS IS RAISED IN THE TUBING FOR ACTUATING THE RELEASING MEANS, AND
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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 |