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US2927640A
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Well tool placement apparatus
Assignee: Jersey Production Research Co
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Filing: 1957-05-16
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Granted: 1960-03-08
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Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 John W Kenneday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:38
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1839310A
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US2261564A
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US2315931A
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US2436252A
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US2591603A
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US2606616A
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US2805718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |