US3372748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer redeposition process for waterflood
Assignee: Mobil Oil AS
•
Filing: 1966-04-14
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Granted: 1968-03-12
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Expires: 1986-04-14
Abstract
No abstract record available.
Inventors
- 👤 Evin L Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C09K8/88; C09K8/90; C09K8/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2827964A
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US3070158A
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US3039529A
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US3305016A
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US3079336A
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US3175610A
Cited
US3208518A
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US3289759A
Cited
US3308885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |