US3065791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for drilling wells with a gas
Assignee: Pan American Petroleum Corp
•
Filing: 1959-01-16
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Granted: 1962-11-27
•
Expires: 1979-01-16
Abstract
No abstract record available.
Inventors
- 👤 William G Bearden
- 👤 Clarence R Fast
- 👤 George C Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:02
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; E21B21/00; E21B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2387361A
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US2377529A
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US2747839A
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US2784787A
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US2818231A
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US2886108A
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US2865453A
Cited
US2994378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |