US2745759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cementitious composition
Assignee: Basic Inc
•
Filing: 1950-11-17
•
Granted: 1956-05-15
•
Expires: 1970-11-17
Abstract
No abstract record available.
Inventors
- 👤 Arnold E Pavlish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A SLOW-SETTING CEMENTITIOUS COMPOSITION CONSISTING ESSENTIALLY OF AN ADMIXTURE OF MAGNESIUM OXIDE AND CALCIUM CARBONATE IN THE APPROXIMATE WEIGHT RATIO THAT THE SAME ARE FOUND IN PARTIALLY CALCINED DOLOMITE SUBSTANTIALLY FREE OF CALCIUM OXIDE, AN AQUEOUS SOLUTION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM CHLORIDE AND MAGNESIUM SULPHATE IN AN AMOUNT SUFFICIENT TO FORM A WORKABLE MASS WITH SAID ADMIXTURE, THE CONCENTRATION OF SAID REAGENT BEING FROM ABOUT 22* BAUME TO COMPLETE SATURATION, AND FROM ABOUT 0.05% TO ABOUT 1.5% BY WEIGHT, BASED ON THE WEIGHT OF SAID ADMIXTURE, OF A WATER-SOLUBLE, ALKALI METAL PHOSPHATE.
Claim 2
Dependent Claim
98 words
A SLOW-SETTING CEMENTITIOUS COMPOSITION CONSISTING ESSENTIALLY OF AN ADMIXTURE OF MAGNESIUM OXIDE AND CALCIUM CARBONATE IN THE APPROXIMATE WEIGHT RATIO THAT THE SAME ARE FOUND IN PARTIALLY CALCINED DOLOMITE SUBSTANTIALLY FREE OF CALCIUM OXIDE, AN AQUEOUS SOLUTION OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM CHLORIDE AND MAGNESIUM SULPHATE IN AN AMOUNT SUFFICIENT TO FORM A WORKABLE MASS WITH SAID ADMIXTURE, THE CONCENTRATION OF SAID REAGENT BEING FROM ABOUT 22* BAUME TO COMPLETE SATURATION, AND FROM ABOUT 0.05% TO ABOUT 1.5% BY WEIGHT, BASED ON THE WEIGHT OF SAID ADMIXTURE, OF A WATER-SOLUBLE, ALKALI METAL PHOSPHATE.
References Cited (Backward Citations)
US505082A
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GB189608314A
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US1296467A
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US1876909A
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US2016274A
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US2351641A
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US2408324A
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US2543959A
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |