Patent US2611536A successfully refreshed from Google Patents.
US3147129A
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Sulfoaluminate cement
Assignee: ExxonMobil Oil Corp
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Filing: 1960-09-27
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Granted: 1964-09-01
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Expires: 1980-09-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas C Armstrong
- 👤 Brooks M Whitehurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/06; C04B28/065; C04B24/00; C04B24/04; C04B24/06; C04B7/00; C04B7/32; C04B7/323
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A UNIFORM, HIGH-STRENGTH, SULFOALUMINATE CEMENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF (A) PULVERIZED CALCIUM ALUMINATE SLAG HAVING AN AL2O3/CAO RATIO OF FROM 0.5 TO 1.25, AN AL2O3/SIO2 RATIO OF AT LEAST 2 TO 1, AND CONTAINING FROM 0.25 TO 4.0% FLUORINE AND (B) A PULVERIZED SUBSTANTIALLY NEUTRAL CALCINED CALCIUM SULFATE, WHICH HAS BEEN CALCINED AT A TEMPERATURE OF FROM 1200 TO 2000*F., SAID SLAG TO ANHYDRITE WEIGHT RATIO BEING FROM ABOUT 1:1 TO ABOUT 2.5 TO 1.
Claim 2
Dependent Claim
78 words
A UNIFORM, HIGH-STRENGTH, SULFOALUMINATE CEMENT COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF (A) PULVERIZED CALCIUM ALUMINATE SLAG HAVING AN AL2O3/CAO RATIO OF FROM 0.5 TO 1.25, AN AL2O3/SIO2 RATIO OF AT LEAST 2 TO 1, AND CONTAINING FROM 0.25 TO 4.0% FLUORINE AND (B) A PULVERIZED SUBSTANTIALLY NEUTRAL CALCINED CALCIUM SULFATE, WHICH HAS BEEN CALCINED AT A TEMPERATURE OF FROM 1200 TO 2000*F., SAID SLAG TO ANHYDRITE WEIGHT RATIO BEING FROM ABOUT 1:1 TO ABOUT 2.5 TO 1.
References Cited (Backward Citations)
GB513897A
Cited
GB317783A
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GB513898A
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FR949789A
Cited
US2859124A
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US2947643A
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US2937926A
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US3024123A
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |