Patent US2566424A successfully refreshed from Google Patents.
US2566424A
Expired / Lapsed
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Powdered glassy phosphate composition and method of making the same
Assignee: Hall Labs LLC
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Filing: 1946-02-28
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Granted: 1951-09-04
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Expires: 1966-02-28
Abstract
No abstract record available.
Inventors
- 👤 Casimir J Munter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:45
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A WATER TREATING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING CONSTITUENTS: (A) A POWDERED WATER SOLUBLE ALKALI METAL PHOSPHATE GLASS HAVING A MOLAR RATIO OF ALKALI METAL OXIDE TO PHOSPHORUS PENTOXIDE BETWEEN ABOUT 0.9:1 AND 1.7:1, (B) A POWDERED SOLID WATERSOLUBLE ACIDIC CHEMICAL COMPOUND, AND (C) A POWDERED SOLID WATER SOLUBLE ALKALI METAL COMPOUND WHICH RELEASES A GAS WHEN REACTED IN WATER SOLUTION WITH SAID ACIDIC COMPOUND, ONE OF THE CONSTITUENTS (B) AND (C) BEING IN THE FORM OF A COATING ON THE PARTICLES OF THE PHOSPHATE GLASS, SAID MIXTURE BEING CHARACTERIZED BY A HIGH RATE OF SOLUTION IN WATER.
Claim 2
Dependent Claim
102 words
A WATER TREATING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF THE FOLLOWING CONSTITUENTS: (A) A POWDERED WATER SOLUBLE ALKALI METAL PHOSPHATE GLASS HAVING A MOLAR RATIO OF ALKALI METAL OXIDE TO PHOSPHORUS PENTOXIDE BETWEEN ABOUT 0.9:1 AND 1.7:1, (B) A POWDERED SOLID WATERSOLUBLE ACIDIC CHEMICAL COMPOUND, AND (C) A POWDERED SOLID WATER SOLUBLE ALKALI METAL COMPOUND WHICH RELEASES A GAS WHEN REACTED IN WATER SOLUTION WITH SAID ACIDIC COMPOUND, ONE OF THE CONSTITUENTS (B) AND (C) BEING IN THE FORM OF A COATING ON THE PARTICLES OF THE PHOSPHATE GLASS, SAID MIXTURE BEING CHARACTERIZED BY A HIGH RATE OF SOLUTION IN WATER.
References Cited (Backward Citations)
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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) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |