Patent US3042612A successfully refreshed from Google Patents.
US3042612A
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Low fluid loss composition
Assignee: ConocoPhillips Co
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Filing: 1959-10-26
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Granted: 1962-07-03
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Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 Albert H Roebuck
- 👤 James B Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:07
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
78 words
A LOW LIQUID CONSISTING ESSENTIALLY OF AT LEAST .0025 PART OF A FINELY DIVIDED SOLID CONTAINING PARTICLES VARYING IN SIZE FROM ABOUT 0.005 TO 2 MICRONS, AN AMOUNT OF .015 TO .08 PART OF AN ORGANO SULFONATE DISPERSING AGENT AN AMOUNT OF 0.1 TO .08 PART AN AGGLUTINANT AND AN AMOUNT SUFFICIENT TO REDUCE FLUID LOSS OF AN AT LEAST PARTIALLY OIL-SOLUBLE SURFACE ACTIVE AGENT SELECTED FROM THE GROUP CONSISTING OF POLYAMINES, ALKYL SUBSTITUTED IMIDAZOLINES HAVING THE FORMULA
Claim 2
Dependent Claim
78 words
A LOW LIQUID CONSISTING ESSENTIALLY OF AT LEAST .0025 PART OF A FINELY DIVIDED SOLID CONTAINING PARTICLES VARYING IN SIZE FROM ABOUT 0.005 TO 2 MICRONS, AN AMOUNT OF .015 TO .08 PART OF AN ORGANO SULFONATE DISPERSING AGENT AN AMOUNT OF 0.1 TO .08 PART AN AGGLUTINANT AND AN AMOUNT SUFFICIENT TO REDUCE FLUID LOSS OF AN AT LEAST PARTIALLY OIL-SOLUBLE SURFACE ACTIVE AGENT SELECTED FROM THE GROUP CONSISTING OF POLYAMINES, ALKYL SUBSTITUTED IMIDAZOLINES HAVING THE FORMULA
References Cited (Backward Citations)
US2049467A
Cited
US2779735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |