Patent US3303879A successfully refreshed from Google Patents.
US3303879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous treating liquid for permeable earth formations
Assignee: Mobil Oil AS
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Filing: 1964-09-28
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Granted: 1967-02-14
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Sherrod A Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN A QUANTITY SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELSTIC AND IS ALSO A SHEER HARDENING, POSTIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF: (A) ALKALI METAL SOAP OF TALL OIL ACID AND A SALT WHICH FORMS A STRONG ELECTROLYTE IN WATER, (B) AMMONIUM SOAP OF TALL OIL ACID AND A MATERIAL WHICH FORMS AT LEAST A WEAK ELECTROLYTE IN WATER, AND (C) AN AMINE SOAP OF TALL OIL ACID.
Claim 2
Dependent Claim
94 words
IN A METHOD OF TREATING A SUBTERRANEAN FORMATION, THE STEP COMPRISING PASSING INTO SAID FORMATION WATER HAVING INCORPORATED THEREIN A QUANTITY SUFFICIENT TO PROVIDE A SOLUTION WHICH IS VISCOELSTIC AND IS ALSO A SHEER HARDENING, POSTIVE NONSIMPLE LIQUID OF AN ADDITIVE SYSTEM SELECTED FROM THE CLASS CONSISTING OF: (A) ALKALI METAL SOAP OF TALL OIL ACID AND A SALT WHICH FORMS A STRONG ELECTROLYTE IN WATER, (B) AMMONIUM SOAP OF TALL OIL ACID AND A MATERIAL WHICH FORMS AT LEAST A WEAK ELECTROLYTE IN WATER, AND (C) AN AMINE SOAP OF TALL OIL ACID.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |