US2538867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid aluminum hydrogen phosphates
Assignee: Individual
•
Filing: 1948-10-29
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Granted: 1951-01-23
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Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Greger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:39
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/36; C09; C09J; C09J1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN ALUMINUM HYDROGEN PHOSPHATE HAVING AN AL2O3:P2O5 RATIO RANGING FROM 1.5:3 TO 1.85:3, HAVING A MAXIMUM TOTAL OF COMBINED AND UNCOMBINED WATER CONTENT RANGING FROM ABOUT 19 MOLS PER 4.5 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING 1.5:3 RATIO TO ABOUT 23 MOLS PER 4.85 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING 1.85:3 RATIO, AND HAVING A MINIMUM TOTAL OF COMBINED AND UNCOMBINED WATER CONTENT RANGING FROM ABOUT 13 MOLS PER 4.5 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING THE 1.5:3 RATIO TO ABOUT 11.5 MOLS PER 4.85 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING THE 1.85:3 RATIO, SAID ALUMINUM HYDROGEN PHOSPHATE BEING SOLID AT ROOM TEMPERATURES AND BELOW, OF AMORPHOUS STRUCTURE, DISPERSIBLE IN WATER TO FORM A VISCOUS ADHESIVE SOLUTION ESSENTIALLY NONHYGROSCOPIC, AND THERMOPLASTIC.
Claim 2
Dependent Claim
133 words
AN ALUMINUM HYDROGEN PHOSPHATE HAVING AN AL2O3:P2O5 RATIO RANGING FROM 1.5:3 TO 1.85:3, HAVING A MAXIMUM TOTAL OF COMBINED AND UNCOMBINED WATER CONTENT RANGING FROM ABOUT 19 MOLS PER 4.5 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING 1.5:3 RATIO TO ABOUT 23 MOLS PER 4.85 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING 1.85:3 RATIO, AND HAVING A MINIMUM TOTAL OF COMBINED AND UNCOMBINED WATER CONTENT RANGING FROM ABOUT 13 MOLS PER 4.5 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING THE 1.5:3 RATIO TO ABOUT 11.5 MOLS PER 4.85 MOLS OF AL2O3 AND P2O5 FOR THE COMPOSITION HAVING THE 1.85:3 RATIO, SAID ALUMINUM HYDROGEN PHOSPHATE BEING SOLID AT ROOM TEMPERATURES AND BELOW, OF AMORPHOUS STRUCTURE, DISPERSIBLE IN WATER TO FORM A VISCOUS ADHESIVE SOLUTION ESSENTIALLY NONHYGROSCOPIC, AND THERMOPLASTIC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |