US2958626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basic aluminum magnesium carbonate
Assignee: Keystone Chemurgic Corp
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Filing: 1957-03-18
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Granted: 1960-11-01
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Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Schenck Remsen Ten Eyck
- 👤 August J Buzas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:21
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/78; C01F7/784; C01F7/785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
THE COMPOUND TETRAHYDROXY DIALUMINUM MAGNESIUM CARBONATE, HAVING THE FORMULA (OH)4AL2MG(COO)2.NH2O.
Claim 2
Dependent Claim
10 words
THE COMPOUND TETRAHYDROXY DIALUMINUM MAGNESIUM CARBONATE, HAVING THE FORMULA (OH)4AL2MG(COO)2.NH2O.
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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |