Patent US3297084A successfully refreshed from Google Patents.
US3297084A
Expired / Lapsed
US
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Miscible flood viscosity control through ph regulation
Assignee: Marathon Oil Co
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Filing: 1963-09-09
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Granted: 1967-01-10
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 William B Gogarty
- 👤 William C Tosch
- 👤 Claude P Coppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
THE METHOD OF CONTROLLING THE VISOSITY OF A SOLUBLE OIL SUITABLE FOR PETROLEUM RECOVERY FROM SUBTERRANEAN FORMATINS COMPRISING MIXING INTO SAID SOLUBLE OIL AN AMOUNT OF AN IONIC ADDITIVE EFFECTIVE TO REDUCE THE VISCOSITY OF THE SOLUBLE OIL WHILE MAINTAINING THE SOLUBLE OIL SUBSTANTIALLY STABLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |