US3216503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner hanger apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1963-04-29
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Granted: 1965-11-09
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Hiram H Fisher
- 👤 William D Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:09
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN COMBINATION: A CASING STRING DISPOSED IN AN EXTENDING TO THE UPPER PORTION OF A WELL BORE, SAID CASING STRING INCLUDING A TUBULAR MEMBER IN ITS LOWER PORTION; A LINER INCLUDING A LINER HANGING MEMBER; MEANS FOR LOWERING SAID LINER WITHIN SAID CASING STRING TO POSITION SAID LINER HANGING MEMBER WITHIN SAID TUBULAR MEMBER; LATERALLY MOVABLE MEANS IN AND CARRIED BY SAID TUBULAR MEMBER AND SHIFTABLE INWARDLY INTO ENGAGEMENT WITH SAID LINER HANGING MEMBER; AND MEANS FOR SHIFTING SAID LATERALLY MOVABLE MEANS INWARDLY INTO ENGAGEMENT WITH SAID LINER HANGING MEMBER.
Claim 2
Dependent Claim
90 words
IN COMBINATION: A CASING STRING DISPOSED IN AN EXTENDING TO THE UPPER PORTION OF A WELL BORE, SAID CASING STRING INCLUDING A TUBULAR MEMBER IN ITS LOWER PORTION; A LINER INCLUDING A LINER HANGING MEMBER; MEANS FOR LOWERING SAID LINER WITHIN SAID CASING STRING TO POSITION SAID LINER HANGING MEMBER WITHIN SAID TUBULAR MEMBER; LATERALLY MOVABLE MEANS IN AND CARRIED BY SAID TUBULAR MEMBER AND SHIFTABLE INWARDLY INTO ENGAGEMENT WITH SAID LINER HANGING MEMBER; AND MEANS FOR SHIFTING SAID LATERALLY MOVABLE MEANS INWARDLY INTO ENGAGEMENT WITH SAID LINER HANGING MEMBER.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |