Patent US2681114A successfully refreshed from Google Patents.
US2681114A
Expired / Lapsed
US
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Well packer and setting apparatus
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1950-11-25
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Granted: 1954-06-15
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Expires: 1970-11-25
Abstract
No abstract record available.
Inventors
- 👤 Martin B Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:52
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/06; E21B23/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1523286A
Cited
US1994072A
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US2058069A
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US2099048A
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US2098484A
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US2179017A
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US2196656A
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US2189445A
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US2279676A
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US2409811A
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US2373006A
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US2377249A
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US2482913A
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US2618344A
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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) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |