US3434541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In situ combustion process
Assignee: Mobil Oil AS
•
Filing: 1967-10-11
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Granted: 1969-03-25
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Expires: 1987-10-11
Abstract
No abstract record available.
Inventors
- 👤 Evin L Cook
- 👤 Alvin W Talash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:08
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/24; E21B43/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390770A
Cited
US2862557A
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US3115928A
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US3155160A
Cited
US3182721A
Cited
US3280910A
Cited
US3174544A
Cited
US3232345A
Cited
US3332482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |