US3109490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slidable latching seal assembly
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1961-01-17
•
Granted: 1963-11-05
•
Expires: 1981-01-17
Abstract
No abstract record available.
Inventors
- 👤 John R Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:44
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN COMBINATION: A WELL PACKER ADAPTED TO BE SET IN PACKED-OFF CONDITION IN A WELL BORE AND HAVING A PASSAGE THERETHROUGH; AN INNER TUBULAR MEMBER MOVABLE INTO SAID PASSAGE; AN OUTER TUBULAR MEMBER MOVABLE RELATIVELY LONGITUDINALLY ON SAID INNER MEMBER AND MOVABLE INTO SAID PASSAGE; SEAL MEANS BETWEEN SAID OUTER MEMBER AND WELL PACKER TO PREVENT LEAKAGE OF FLUID THEREBETWEEN; AND A SEAL ON SAID OUTER MEMBER SLIDABLY SEALING WITH THE EXTERIOR OF SAID INNER MEMBER TO PREVENT LEAKAGE OF FLUID THEREBETWEEN WHILE ALLOWING LONGITUDINAL MOVEMENT OF SAID INNER MEMBER IN SAID OUTER MEMBER.
Claim 2
Dependent Claim
94 words
IN COMBINATION: A WELL PACKER ADAPTED TO BE SET IN PACKED-OFF CONDITION IN A WELL BORE AND HAVING A PASSAGE THERETHROUGH; AN INNER TUBULAR MEMBER MOVABLE INTO SAID PASSAGE; AN OUTER TUBULAR MEMBER MOVABLE RELATIVELY LONGITUDINALLY ON SAID INNER MEMBER AND MOVABLE INTO SAID PASSAGE; SEAL MEANS BETWEEN SAID OUTER MEMBER AND WELL PACKER TO PREVENT LEAKAGE OF FLUID THEREBETWEEN; AND A SEAL ON SAID OUTER MEMBER SLIDABLY SEALING WITH THE EXTERIOR OF SAID INNER MEMBER TO PREVENT LEAKAGE OF FLUID THEREBETWEEN WHILE ALLOWING LONGITUDINAL MOVEMENT OF SAID INNER MEMBER IN SAID OUTER MEMBER.
References Cited (Backward Citations)
US2948338A
Cited
US2961047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |