Patent US2982724A successfully refreshed from Google Patents.
US2982724A
Expired / Lapsed
US
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Hydraulic fluids for pressure treatment of oil bearing formation
Assignee: JBS USA LLC
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Filing: 1956-05-08
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Granted: 1961-05-02
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Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 Gibson Paul
- 👤 Raymond W Starmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:20
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A HYDRAULIC FLUID FOR HIGH PRESSURE TREATMENT OF OIL AND GAS BEARING FORMATIONS WHICH COMPRISES: A LIQUID HYDROCARBON GELLED WITH A GELLING AGENT COMPRISING AN ALKALI METAL SOAP OF ALIPHATIC, MONOCARBOXYLIC ACIDS HAVING A CHAIN LENGTH BETWEEN 14 AND 24; AN OIL-INERT, PROPPING AGENT SUSPENDED THEREIN, AND AT LEAST ONE PERCENT AND NOT MORE THAN 15% BY WEIGHT OF SAID ALIPHATIC ACIDS OF A GELLING AGENT IMPROVER SELECTED FROM THE GROUP CONSISTING OF, ALKALI METAL SALTS OF PETROLEUM SULFONATES, ALKALI METAL SALTS OF SULFATED FATTY ACIDS, AND FATTY ACID MONOESTERS OF POLYHYDRIC ALCOHOLS.
Claim 2
Dependent Claim
93 words
A HYDRAULIC FLUID FOR HIGH PRESSURE TREATMENT OF OIL AND GAS BEARING FORMATIONS WHICH COMPRISES: A LIQUID HYDROCARBON GELLED WITH A GELLING AGENT COMPRISING AN ALKALI METAL SOAP OF ALIPHATIC, MONOCARBOXYLIC ACIDS HAVING A CHAIN LENGTH BETWEEN 14 AND 24; AN OIL-INERT, PROPPING AGENT SUSPENDED THEREIN, AND AT LEAST ONE PERCENT AND NOT MORE THAN 15% BY WEIGHT OF SAID ALIPHATIC ACIDS OF A GELLING AGENT IMPROVER SELECTED FROM THE GROUP CONSISTING OF, ALKALI METAL SALTS OF PETROLEUM SULFONATES, ALKALI METAL SALTS OF SULFATED FATTY ACIDS, AND FATTY ACID MONOESTERS OF POLYHYDRIC ALCOHOLS.
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |