Patent US2858227A successfully refreshed from Google Patents.
US2858227A
Expired / Lapsed
US
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Building material
Assignee: JAMES C BOYD
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Filing: 1955-09-14
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Granted: 1958-10-28
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Expires: 1975-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rodsky Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; Y; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S106/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A METHOD OF MAKING A BUILDING MATERIAL, THE STEPS OF FORMING AN ADDITIVE SOLUTION BY DISSOLVING IN WATER FROM 0.5% TO 2.4% OF A MEMBER OF THE GROUP CONSISTING OF ALUMINUM SULPHATE, ALUMINUM CARBONATE, ALUMINUM HYDROXIDE AND MAGNESIUM SULPHATE, FROM 0.2% TO 1.2% OF A MEMBER OF THE GROUP CONSISTING OF COPPER SULPHATE, LEAD SULPHATE, ZINC SULPHATE, BARIUM SULPHATE, MAGNESIUM SULPHATE, CALCIUM SULPHATE, IRON SULPHATE, SODIUM SULPHATE AND POTASSIUM SULPHATE, FROM 10% TO 36% OF A MEMBER OF THE GROUP CONSISTING OF CALCIUM CHLORIDE, MAGNESIUM CHLORIDE, SODIUM CHLORIDE AND POTASSIUM CHLORIDE, AND FROM 0.2% TO 1.2% OF HYDRATED LIME, SAID PERCENTAGES BEING BY WEIGHT AND THE BALANCE BEING ESSENTIALLY WATER; ADDING A RELATIVELY SMALL PROPORTION OF SUCH ADDITIVE SOLUTION TO EXPANDED PERLITE AND PORTLAND CEMENT, SAID PORTLAND CEMENT BEING AT LEAST EQUAL IN WEIGHT TO THE WEIGHT OF SAID PERLITE, AND MIXING THE SAME; THEN ADDING WATER IN SUFFICIENT AMOUNT TO FORM A SLURRY.
Claim 2
Dependent Claim
155 words
IN A METHOD OF MAKING A BUILDING MATERIAL, THE STEPS OF FORMING AN ADDITIVE SOLUTION BY DISSOLVING IN WATER FROM 0.5% TO 2.4% OF A MEMBER OF THE GROUP CONSISTING OF ALUMINUM SULPHATE, ALUMINUM CARBONATE, ALUMINUM HYDROXIDE AND MAGNESIUM SULPHATE, FROM 0.2% TO 1.2% OF A MEMBER OF THE GROUP CONSISTING OF COPPER SULPHATE, LEAD SULPHATE, ZINC SULPHATE, BARIUM SULPHATE, MAGNESIUM SULPHATE, CALCIUM SULPHATE, IRON SULPHATE, SODIUM SULPHATE AND POTASSIUM SULPHATE, FROM 10% TO 36% OF A MEMBER OF THE GROUP CONSISTING OF CALCIUM CHLORIDE, MAGNESIUM CHLORIDE, SODIUM CHLORIDE AND POTASSIUM CHLORIDE, AND FROM 0.2% TO 1.2% OF HYDRATED LIME, SAID PERCENTAGES BEING BY WEIGHT AND THE BALANCE BEING ESSENTIALLY WATER; ADDING A RELATIVELY SMALL PROPORTION OF SUCH ADDITIVE SOLUTION TO EXPANDED PERLITE AND PORTLAND CEMENT, SAID PORTLAND CEMENT BEING AT LEAST EQUAL IN WEIGHT TO THE WEIGHT OF SAID PERLITE, AND MIXING THE SAME; THEN ADDING WATER IN SUFFICIENT AMOUNT TO FORM A SLURRY.
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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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |