US3097697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner hanger
Assignee: MIDWAY FISHING TOOL Co
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Filing: 1958-04-07
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Granted: 1963-07-16
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Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 William H States
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:28
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A WELL DEVICE OF THE CLASS DESCRIBED COMPRISING A BODY ADAPTED TO BE RUN INTO A WELL CASING ON A RUNNING-IN STRING OF PIPE; MEANS ON SAID BODY SHIFTABLE INTO ENGAGEMENT WITH SAID CASING AND OPERABLE TO SECURE THE DEVICE AGAINST DOWNWARD MOVEMENT IN THE WELL; MEANS SHIFTABLY DISPOSED ON SAID BODY FOR OPERATING SAID SECURING MEANS; RETAINER MEANS RELEASABLY RETAINING SAID OPERATION MEANS AGAINST OPERATION; AND CASING ENGAGING FRICTION MEANS ENGAGEABLE WITH SAID RETAINING MEANS FOR RELEASING SAID RETAINING MEANS UPON LONGITUDINAL MOVEMENT OF SAID BODY IN ONE DIRECTION WITH RESPECT TO SAID CASING AND ENGAGEABLE WITH SAID OPERATION MEANS FOR SHIFTING SAID OPERATION MEANS UPON SUBSEQUENT LONGITUDINAL MOVEMENT OF SAID BODY IN THE OTHER DIRECTION WITH RESPECT TO SAID CASING TO OPERATE SAID SECURING MEANS.
Claim 2
Dependent Claim
127 words
A WELL DEVICE OF THE CLASS DESCRIBED COMPRISING A BODY ADAPTED TO BE RUN INTO A WELL CASING ON A RUNNING-IN STRING OF PIPE; MEANS ON SAID BODY SHIFTABLE INTO ENGAGEMENT WITH SAID CASING AND OPERABLE TO SECURE THE DEVICE AGAINST DOWNWARD MOVEMENT IN THE WELL; MEANS SHIFTABLY DISPOSED ON SAID BODY FOR OPERATING SAID SECURING MEANS; RETAINER MEANS RELEASABLY RETAINING SAID OPERATION MEANS AGAINST OPERATION; AND CASING ENGAGING FRICTION MEANS ENGAGEABLE WITH SAID RETAINING MEANS FOR RELEASING SAID RETAINING MEANS UPON LONGITUDINAL MOVEMENT OF SAID BODY IN ONE DIRECTION WITH RESPECT TO SAID CASING AND ENGAGEABLE WITH SAID OPERATION MEANS FOR SHIFTING SAID OPERATION MEANS UPON SUBSEQUENT LONGITUDINAL MOVEMENT OF SAID BODY IN THE OTHER DIRECTION WITH RESPECT TO SAID CASING TO OPERATE SAID SECURING MEANS.
References Cited (Backward Citations)
US1431426A
Cited
US1506881A
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US2345888A
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US2568867A
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US2644527A
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US3012612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |