US3379246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal method for producing heavy oil
Assignee: Mobil Oil AS
•
Filing: 1967-08-24
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Granted: 1968-04-23
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Expires: 1987-08-24
Abstract
No abstract record available.
Inventors
- 👤 Sklar Isadore
- 👤 G W Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
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)
US3126961A
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US1107416A
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US2390770A
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US2914309A
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US2813583A
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US3120264A
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US2952450A
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US3130781A
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US3259186A
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US3280909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |