US2962095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground combustion process for oil recovery
Assignee: Pan American Petroleum Corp
•
Filing: 1957-03-06
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Granted: 1960-11-29
•
Expires: 1977-03-06
Abstract
No abstract record available.
Inventors
- 👤 Morse Richard Arden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:03
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243; E21B43/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1422204A
Cited
US2596845A
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US2584606A
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US2699212A
Cited
US2645291A
Cited
US2670047A
Cited
US2780449A
Cited
US2818118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |