US3226240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calcium aluminate cement composition
Assignee: Standard Oil Co
•
Filing: 1963-01-28
•
Granted: 1965-12-28
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Michael S Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE CALCIUM ALUMINATE CEMENT COMPOSITION CONSISTING ESSENTIALLY OF (A) A MIXTURE OF FROM ABOUT 10 TO ABOUT 30 WEIGHT PERCENT PURE CALCIUM ALUMINATE CEMENT, AND FROM ABOUT 70 TO ABOUT 90 WEIGHT PERCENT REFRACTORY AGGREGATE; (B) FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, BASED ON MIXTURE (A), OF PREDOMINANTLY KAOLINTIC CLAY; AND (C) FROM ABOUT 0.05 TO ABOUT 3 WEIGHT PERCENT, BASED ON SAID CLAY, OF AN ANIONIC WETTING AGENT.
Claim 2
Dependent Claim
71 words
THE CALCIUM ALUMINATE CEMENT COMPOSITION CONSISTING ESSENTIALLY OF (A) A MIXTURE OF FROM ABOUT 10 TO ABOUT 30 WEIGHT PERCENT PURE CALCIUM ALUMINATE CEMENT, AND FROM ABOUT 70 TO ABOUT 90 WEIGHT PERCENT REFRACTORY AGGREGATE; (B) FROM ABOUT 0.1 TO ABOUT 2 WEIGHT PERCENT, BASED ON MIXTURE (A), OF PREDOMINANTLY KAOLINTIC CLAY; AND (C) FROM ABOUT 0.05 TO ABOUT 3 WEIGHT PERCENT, BASED ON SAID CLAY, OF AN ANIONIC WETTING AGENT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |