US2994378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of a well with the drill string in the well
Assignee: Jersey Production Research Co
•
Filing: 1957-03-13
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Granted: 1961-08-01
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Expires: 1977-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl E Reistle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/127; E21B27/00; E21B27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2695065A
Cited
US2701122A
Cited
US2663545A
Cited
US2760580A
Cited
US2783026A
Cited
US2784790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |