US2911048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for working over and servicing wells
Assignee: Jersey Production Research Co
•
Filing: 1954-10-07
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Granted: 1959-11-03
•
Expires: 1974-10-07
Abstract
No abstract record available.
Inventors
- 👤 Iii James R Dublin
- 👤 John W Kenneday
- 👤 Wallace M O'reilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:37
CPC Classifications
E; E21; E21B; E21B41/00; E21B43/00; E21B43/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2016919A
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US2636563A
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US2674315A
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US2649916A
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US2749989A
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US2760578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |