US3254713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering oil from oil-producing sands utilizing compounds having exceptional wetting properties
Assignee: Emery Oleochemicals LLC
•
Filing: 1962-06-06
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Granted: 1966-06-07
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Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Oscar L Scherr
- 👤 Samuel F Moses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:39
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN THE PROCESS FOR THE RECOVERY OF OIL RETAINED IN OIL-PRODUCING SANDS BY FLOODING THE SANDS WITH BRINE SOLUTION, THE IMPROVEMENT COMPRISING INCORPORATING IN THE BRINE SOLUTION AN ETHOXYLATED DERIVATIVE OF ISOMERIC TRIMETHYL HEPTANOLS CONTAINING 4 MOLES OF ETHYLENE OXIDE PER MOLE OF ISOMERIC TRIMETHYL HEPTANOL, WHEREABY THE RATE OF FLOW OF THE BRINE SOLUTION THROUGH THE SANDS IS SUBSTANTIALLY INCREASED WHILE MAINTAINING CONSTANT WATER PRESSURE.
Claim 2
Dependent Claim
66 words
IN THE PROCESS FOR THE RECOVERY OF OIL RETAINED IN OIL-PRODUCING SANDS BY FLOODING THE SANDS WITH BRINE SOLUTION, THE IMPROVEMENT COMPRISING INCORPORATING IN THE BRINE SOLUTION AN ETHOXYLATED DERIVATIVE OF ISOMERIC TRIMETHYL HEPTANOLS CONTAINING 4 MOLES OF ETHYLENE OXIDE PER MOLE OF ISOMERIC TRIMETHYL HEPTANOL, WHEREABY THE RATE OF FLOW OF THE BRINE SOLUTION THROUGH THE SANDS IS SUBSTANTIALLY INCREASED WHILE MAINTAINING CONSTANT WATER PRESSURE.
References Cited (Backward Citations)
US2671116A
Cited
US2738325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |