US3429372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil recovery method employing thickened water and crossflooding
Assignee: Mobil Oil AS
•
Filing: 1967-09-15
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Granted: 1969-02-25
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Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Carl Connally Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:31
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/16; E21B43/20; E21B43/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2885002A
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US3143169A
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US3113617A
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US3208518A
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US3199587A
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US3308883A
Cited
US3380524A
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US3380525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |