US3282340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable pump and anchor apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1963-07-05
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Granted: 1966-11-01
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Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Robert O Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN APPARATUS ADAPTED TO BE DISPOSED IN A TUBULAR STRING WITHIN A WELL BORE; A PUMP OPERABLE BY SUCKER RODS; A BODY TO WHICH SAID PUMP IS RELEASABLY SECURED AND FROM WHICH SAID PUMP CAN BE RELEASED WHILE SAID BODY AND PUMP ARE IN THE WELL BORE; NORMALLY RETRACTED MEANS ON SAID BODY; MEANS RESPONSIVE TO MANIPULATION OF SAID BODY BY THE SUCKER RODS AND PUMP FOR EXPANDING SAID NORMALLY RETRACTED MEANS AGAINST THE TUBULAR STRING MEANS FOR RELEASABLY LOCKING SAID NORMALLY RETRACTED MEANS IN SAID EXPANDED CONDITION AGAINST THE TUBULAR STRING; AND HOLDING MEANS PREVENTING RELEASE OF SAID LOCKING MEANS WHEN IN ONE POSITION AND MOVABLE WITH RESPECT TO SAID BODY TO ANOTHER POSITION PERMITTING SUCH RELEASE.
Claim 2
Dependent Claim
118 words
IN APPARATUS ADAPTED TO BE DISPOSED IN A TUBULAR STRING WITHIN A WELL BORE; A PUMP OPERABLE BY SUCKER RODS; A BODY TO WHICH SAID PUMP IS RELEASABLY SECURED AND FROM WHICH SAID PUMP CAN BE RELEASED WHILE SAID BODY AND PUMP ARE IN THE WELL BORE; NORMALLY RETRACTED MEANS ON SAID BODY; MEANS RESPONSIVE TO MANIPULATION OF SAID BODY BY THE SUCKER RODS AND PUMP FOR EXPANDING SAID NORMALLY RETRACTED MEANS AGAINST THE TUBULAR STRING MEANS FOR RELEASABLY LOCKING SAID NORMALLY RETRACTED MEANS IN SAID EXPANDED CONDITION AGAINST THE TUBULAR STRING; AND HOLDING MEANS PREVENTING RELEASE OF SAID LOCKING MEANS WHEN IN ONE POSITION AND MOVABLE WITH RESPECT TO SAID BODY TO ANOTHER POSITION PERMITTING SUCH RELEASE.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |