Patent US3166126A successfully refreshed from Google Patents.
US3166126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple zone well production apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1961-06-05
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Granted: 1965-01-19
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Expires: 1981-06-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Wents
- 👤 Libal Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:22
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN WELL APPARATUS ADAPTED TO BE SET IN A WELL BORE: FIRST, SECOND AND THIRD PARALLEL TUBULAR BODY MEMBERS ADAPTED TO BE PLACED IN COMMUNICATION WITH FIRST, SECOND AND THIRD TUBULAR STRINGS EXTENDING TO THE TOP OF THE WELL BORE; AN EXPANDER ON SAID BODY MEMBERS; SLIP MEANS ENGAGED BY AND MOVABLE OUTWARDLY BY SAID EXPANDER TO ANCHOR THE WELL APPARATUS IN THE WELL BORE; MEANS SECURING SAID FIRST BODY MEMBER TO SAID SLIP MEANS; SAID SECOND AND THIRD BODY MEMBERS BEING MOVABLY LONGITUDINALLY OF SAID SLIP MEANS; AND MEANS FOR TRANSMITTING THE LONGITUDINAL MOVEMENT OF SAID SECOND AND THIRD BODY MEMBERS TO SAID EXPANDER TO MOVE SAID EXPANDER LONGITUDINALLY OF SAID SLIP MEANS AND FIRST BODY MEMBER TO EXPAND SAID SLIP MEANS.
Claim 2
Dependent Claim
123 words
IN WELL APPARATUS ADAPTED TO BE SET IN A WELL BORE: FIRST, SECOND AND THIRD PARALLEL TUBULAR BODY MEMBERS ADAPTED TO BE PLACED IN COMMUNICATION WITH FIRST, SECOND AND THIRD TUBULAR STRINGS EXTENDING TO THE TOP OF THE WELL BORE; AN EXPANDER ON SAID BODY MEMBERS; SLIP MEANS ENGAGED BY AND MOVABLE OUTWARDLY BY SAID EXPANDER TO ANCHOR THE WELL APPARATUS IN THE WELL BORE; MEANS SECURING SAID FIRST BODY MEMBER TO SAID SLIP MEANS; SAID SECOND AND THIRD BODY MEMBERS BEING MOVABLY LONGITUDINALLY OF SAID SLIP MEANS; AND MEANS FOR TRANSMITTING THE LONGITUDINAL MOVEMENT OF SAID SECOND AND THIRD BODY MEMBERS TO SAID EXPANDER TO MOVE SAID EXPANDER LONGITUDINALLY OF SAID SLIP MEANS AND FIRST BODY MEMBER TO EXPAND SAID SLIP MEANS.
References Cited (Backward Citations)
US2989121A
Cited
US2902093A
Cited
US2950761A
Cited
US3045754A
Cited
US2966216A
Cited
US3094168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |