Patent US3279537A successfully refreshed from Google Patents.
US3279537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering oil utilizing non-newtonian fluids
Assignee: Marathon Oil Co
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Filing: 1964-01-10
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Granted: 1966-10-18
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Expires: 1984-01-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter B Kirk
- 👤 Wilson L Kinney
- 👤 William B Gogarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:30
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN A PROCESS FOR THE PRODUCTION OF PETROLEUM FLUIDS FROM PERMEABLE SUBTERRANEAN FORMATIONS HAVING A PLURALITY OF WELLS DRILLED THEREIN COMPRISING INJECTING A PSEUDOPLASTIC NON-NEWTONIAN FLUID INTO SAID FORMATION THROUGH A PORTION OF THE WELLS DRILLED THEREIN WHILE
Claim 2
Dependent Claim
38 words
IN A PROCESS FOR THE PRODUCTION OF PETROLEUM FLUIDS FROM PERMEABLE SUBTERRANEAN FORMATIONS HAVING A PLURALITY OF WELLS DRILLED THEREIN COMPRISING INJECTING A PSEUDOPLASTIC NON-NEWTONIAN FLUID INTO SAID FORMATION THROUGH A PORTION OF THE WELLS DRILLED THEREIN WHILE
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |