US2794779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well treatment composition
Assignee: Dow Chemical Co
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Filing: 1954-06-02
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Granted: 1957-06-04
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Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 Paul H Cardwell
- 👤 Louis H Eilers
- 👤 Alfred R Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:16
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; Y; Y10; Y10S; Y10S507/00; Y10S507/921
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
100 words
A FLUID COMPOSITION HAVING A TEMPORARY HIGH VISCOSITY COMPRISING A BASE OF A LIQUID PETROLEUM FRACTION, SAID BASE HAVING DISPERSED THEREIN AS A THICKENING AGENT ALUMINUM OCTOATE AND A THICKENING CONTROLLING AGENT COMPRISING AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF ACETIC AND BUTYRIC ACID, THE ALUMINUM OCTOATE BEING PRESENT IN AMOUNT BETWEEN 10 AND 90 POUNDS PER 100 GALLONS OF THE LIQUID PETROLEUM FRACTION AND THE THICKENING CONTROLLING AGENT BEING PRESENT IN AMOUNT BETWEEN 0.15 AND 9.4 PERCENT OF THE WEIGHT OF THE PETROLEUM FRACTION, SAID THICKENING CONTROLLING AGENT CAUSING THE COMPOSITION TO THICKEN AND THEREAFTER TO THIN.
Claim 2
Dependent Claim
100 words
A FLUID COMPOSITION HAVING A TEMPORARY HIGH VISCOSITY COMPRISING A BASE OF A LIQUID PETROLEUM FRACTION, SAID BASE HAVING DISPERSED THEREIN AS A THICKENING AGENT ALUMINUM OCTOATE AND A THICKENING CONTROLLING AGENT COMPRISING AN ALIPHATIC ACID SELECTED FROM THE GROUP CONSISTING OF ACETIC AND BUTYRIC ACID, THE ALUMINUM OCTOATE BEING PRESENT IN AMOUNT BETWEEN 10 AND 90 POUNDS PER 100 GALLONS OF THE LIQUID PETROLEUM FRACTION AND THE THICKENING CONTROLLING AGENT BEING PRESENT IN AMOUNT BETWEEN 0.15 AND 9.4 PERCENT OF THE WEIGHT OF THE PETROLEUM FRACTION, SAID THICKENING CONTROLLING AGENT CAUSING THE COMPOSITION TO THICKEN AND THEREAFTER TO THIN.
Claim 3
Dependent Claim
18 words
A FLUID COMPOSITION ACCORDING TO CLAIM 1 IN WHICH THE THICKENING CONTROLLING AGENT HAS ADMIXED THEREWITH OLEIC ACID.
References Cited (Backward Citations)
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US2186875A
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US2390609A
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US2596844A
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US2693856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |