US3189096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable bridge plug or packer with sleeve valve
Assignee: Halliburton Co
•
Filing: 1961-09-12
•
Granted: 1965-06-15
•
Expires: 1981-09-12
Abstract
No abstract record available.
Inventors
- 👤 Phenix Fladger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A RETRIEVABLE WELL PACKER COMPRISING A MANDREL, AN EXPANSIBLE SLIP TYPE ANCHOR MOUNTED IN TELESCOPING RELATION ON THE MANDREL, MEANS FOR SELECTIVELY EXPANDING THE SLIPS OF THE ANCHOR, AN EXPANSIBLE PACKER MOUNTED ON THE MANDREL, A COMPRESSION SLEEVE MOUNTED ON THE MANDREL ADJACENT TO THE PACKER, SAID SLEEVE BEING MOVABLE AXIALLY ON THE MANDREL TO EXPAND THE PACKER, A SLEEVE VALVE MOUNTED ON THE MANDREL AND MOVABLE AXIALLY THEREOF, SAID SLEEVE VALVE BEING A SHOULDER THEREON IN POSITION TO ENGAGE THE COMPRESSION SLEEVE, A SLOT IN THE MANDREL ADJACENT THE SLEEVE VALVE, AND A PIN ON THE SLEEVE VALVE EXTENDING INTO THE SLOT, SAID SLOT BEING CONTOURED FOR SELEC-
Claim 2
Dependent Claim
109 words
A RETRIEVABLE WELL PACKER COMPRISING A MANDREL, AN EXPANSIBLE SLIP TYPE ANCHOR MOUNTED IN TELESCOPING RELATION ON THE MANDREL, MEANS FOR SELECTIVELY EXPANDING THE SLIPS OF THE ANCHOR, AN EXPANSIBLE PACKER MOUNTED ON THE MANDREL, A COMPRESSION SLEEVE MOUNTED ON THE MANDREL ADJACENT TO THE PACKER, SAID SLEEVE BEING MOVABLE AXIALLY ON THE MANDREL TO EXPAND THE PACKER, A SLEEVE VALVE MOUNTED ON THE MANDREL AND MOVABLE AXIALLY THEREOF, SAID SLEEVE VALVE BEING A SHOULDER THEREON IN POSITION TO ENGAGE THE COMPRESSION SLEEVE, A SLOT IN THE MANDREL ADJACENT THE SLEEVE VALVE, AND A PIN ON THE SLEEVE VALVE EXTENDING INTO THE SLOT, SAID SLOT BEING CONTOURED FOR SELEC-
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |