US3102593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchoring and sealing devices
Assignee: Otis Engineering Corp
•
Filing: 1959-09-09
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Granted: 1963-09-03
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Expires: 1979-09-09
Abstract
No abstract record available.
Inventors
- 👤 Phillip S Sizer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:27
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN ANCHORING AND SEALING DEVICE FOR USE IN A WELL FLOW CONDUCTOR INCLUDING: A TUBULAR MAIN MANDREL; LOCKING MEANS CARRIED BY THE MAIN MANDREL AND MOVABLE UPWARDLY RELATIVE TO THE MAIN MANDREL FROM AN INITIAL RETRACTED POSITION ADJACENT THE MAIN MANDREL TO EXPANDED POSITION WHEREIN SAID LOCKING MEANS EXTENDS OUTWARDLY OF THE MAIN MANDREL TO ANCHOR THE WELL DEVICE IN A WELL FLOW CONDUCTOR AGAINST LONGITUDINAL MOVEMENT THEREIN; SEAL MEANS CARRIED BY THE MAIN MANDREL; AN INNER MANDREL DISPOSED IN THE MAIN MANDREL FOR LIMITED LONGITUDINAL MOVEMENT BETWEEN UPPER AND LOWER POSITIONS, SAID INNER MANDREL BEING PROVIDED WITH AN EXPANDER MEANS ENGAGEABLE WITH THE SEAL MEANS TO EXPAND THE SEAL MEANS INTO SEALING ENGAGEMENT WITH THE WELL FLOW CONDUCTOR AFTER THE MAIN MANDREL HAS BEEN ANCHORED THEREIN BY THE LOCKING MEANS; COENGAGEABLE MEANS ON THE
Claim 2
Dependent Claim
135 words
AN ANCHORING AND SEALING DEVICE FOR USE IN A WELL FLOW CONDUCTOR INCLUDING: A TUBULAR MAIN MANDREL; LOCKING MEANS CARRIED BY THE MAIN MANDREL AND MOVABLE UPWARDLY RELATIVE TO THE MAIN MANDREL FROM AN INITIAL RETRACTED POSITION ADJACENT THE MAIN MANDREL TO EXPANDED POSITION WHEREIN SAID LOCKING MEANS EXTENDS OUTWARDLY OF THE MAIN MANDREL TO ANCHOR THE WELL DEVICE IN A WELL FLOW CONDUCTOR AGAINST LONGITUDINAL MOVEMENT THEREIN; SEAL MEANS CARRIED BY THE MAIN MANDREL; AN INNER MANDREL DISPOSED IN THE MAIN MANDREL FOR LIMITED LONGITUDINAL MOVEMENT BETWEEN UPPER AND LOWER POSITIONS, SAID INNER MANDREL BEING PROVIDED WITH AN EXPANDER MEANS ENGAGEABLE WITH THE SEAL MEANS TO EXPAND THE SEAL MEANS INTO SEALING ENGAGEMENT WITH THE WELL FLOW CONDUCTOR AFTER THE MAIN MANDREL HAS BEEN ANCHORED THEREIN BY THE LOCKING MEANS; COENGAGEABLE MEANS ON THE
References Cited (Backward Citations)
US2603295A
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US2196353A
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US2392244A
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US2605843A
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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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |