Patent US3079268A successfully refreshed from Google Patents.
US3079268A
Expired / Lapsed
US
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Cementing composition
Assignee: Jersey Production Research Co
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Filing: 1960-04-25
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Granted: 1963-02-26
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred A Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:30
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A LOW DENSITY HIGH EARLY STRENGTH OIL AND GAS WELL CEMENTING COMPOSITION WHICH CONSISTS ESSENTIALLY OF AN OIL-IN-WATER EMULSION, SILICA-ALUMINA COMPRISING ABOUT 75% OF SILICA AND ABOUT 25% OF ALUMINA HAVING A PARTICLE SIZE WITHIN THE RANGE FROM ABOUT 0.1 TO ABOUT 80 MICRONS, AND HYDRAULIC CEMENT, SAID SILICA-ALUMINA BEING PRESENT IN AN AMOUNT FROM ABOUT 3 TO ABOUT 5 GRAMS PER 100 GRAMS OF SAID CEMENT, SAID SILICA-ALUMINA BEING SUBSTANTIALLY FREE OF CONTAMINANTS, THE OIL IN SAID OIL-IN-WATER EMULSION BEING A HYDROCARBON OIL HAVING A SPECIFIC GRAVITY WITHIN THE RANGE FROM ABOUT 0.65 TO ABOUT 0.95.
Claim 2
Dependent Claim
97 words
A LOW DENSITY HIGH EARLY STRENGTH OIL AND GAS WELL CEMENTING COMPOSITION WHICH CONSISTS ESSENTIALLY OF AN OIL-IN-WATER EMULSION, SILICA-ALUMINA COMPRISING ABOUT 75% OF SILICA AND ABOUT 25% OF ALUMINA HAVING A PARTICLE SIZE WITHIN THE RANGE FROM ABOUT 0.1 TO ABOUT 80 MICRONS, AND HYDRAULIC CEMENT, SAID SILICA-ALUMINA BEING PRESENT IN AN AMOUNT FROM ABOUT 3 TO ABOUT 5 GRAMS PER 100 GRAMS OF SAID CEMENT, SAID SILICA-ALUMINA BEING SUBSTANTIALLY FREE OF CONTAMINANTS, THE OIL IN SAID OIL-IN-WATER EMULSION BEING A HYDROCARBON OIL HAVING A SPECIFIC GRAVITY WITHIN THE RANGE FROM ABOUT 0.65 TO ABOUT 0.95.
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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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |