US2687775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Setting tool and well packer
Assignee: Baker Hughes Oilfield Operations LLC
•
Filing: 1950-07-10
•
Granted: 1954-08-31
•
Expires: 1970-07-10
Abstract
No abstract record available.
Inventors
- 👤 Reuben C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:17
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1293; E21B23/00; E21B23/04; E21B23/0411; E21B23/0414; E21B23/042; E21B23/06; E21B23/065; Y; Y10; Y10S; Y10S411/00; Y10S411/924
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2467801A
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US2534529A
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US2516034A
Cited
US2640546A
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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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |