US3223159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liner cementing method
Assignee: Baker Hughes Holdings LLC
•
Filing: 1963-09-09
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Granted: 1965-12-14
•
Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE METHOD OF CEMENTING A LINER IN A WELL BORE, THE IMPROVEMENTS WHICH COMPRISE, SEALING-OFF THE ANNULAR SPACE BETWEEN A LINER AND THE WELL BORE WALL AT A POINT ADJACENT THE UPPER END OF THE LINER, INTRODUCING A STREAM OF CEMENTING FLUID INTO SAID ANNULAR SPACE BY FLOWING IT DOWNWARDLY ABOUT THE LINER FROM A POINT NEAR THE UPPER END THEROF BELOW TH EPOINT OF SAID SEALING-OFF AND THENCE UPWARDLY THROUGH THE BORE OF THE LINER, AND AFTER PLACING
Claim 2
Dependent Claim
80 words
IN THE METHOD OF CEMENTING A LINER IN A WELL BORE, THE IMPROVEMENTS WHICH COMPRISE, SEALING-OFF THE ANNULAR SPACE BETWEEN A LINER AND THE WELL BORE WALL AT A POINT ADJACENT THE UPPER END OF THE LINER, INTRODUCING A STREAM OF CEMENTING FLUID INTO SAID ANNULAR SPACE BY FLOWING IT DOWNWARDLY ABOUT THE LINER FROM A POINT NEAR THE UPPER END THEROF BELOW TH EPOINT OF SAID SEALING-OFF AND THENCE UPWARDLY THROUGH THE BORE OF THE LINER, AND AFTER PLACING
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |