Patent US2910346A successfully refreshed from Google Patents.
US2910346A
Expired / Lapsed
US
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Recovery of germanium values
Assignee: Lanteris Space LLC
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Filing: 1956-06-15
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Granted: 1959-10-27
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Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Manns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:36
CPC Classifications
C; C22; C22B; C22B41/00; C01; C01G; C01G17/00; C01G17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR RECOVERING GERMANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE REACTION PRODUCTS OF HYDROFLUORIC ACID, GERMANIUM VALUES AND AN OXIDIZING AGENT HAVING A CONCENTRATION OF FROM ABOUT 1 TO ABOUT 65% BY WEIGHT OF SAID SOLUTION, WHICH COMPRISES ADDING TO SAID SOLUTION AT LEAST 0.5 MOLE OF SULFURIC ACID PER MOLE OF GERMANIUM THEREIN, EVAPORATING SAID SOLUTION TO CAUSE GERMANIUM VALUES IN THE FORM OF GERMANIUM DIOXIDE TO BE PRECIPITATED THEREFROM, AND RECOVERING SAID GERMANIUM DIOXIDE.
Claim 2
Dependent Claim
78 words
A PROCESS FOR RECOVERING GERMANIUM VALUES FROM AN AQUEOUS SOLUTION CONTAINING THE REACTION PRODUCTS OF HYDROFLUORIC ACID, GERMANIUM VALUES AND AN OXIDIZING AGENT HAVING A CONCENTRATION OF FROM ABOUT 1 TO ABOUT 65% BY WEIGHT OF SAID SOLUTION, WHICH COMPRISES ADDING TO SAID SOLUTION AT LEAST 0.5 MOLE OF SULFURIC ACID PER MOLE OF GERMANIUM THEREIN, EVAPORATING SAID SOLUTION TO CAUSE GERMANIUM VALUES IN THE FORM OF GERMANIUM DIOXIDE TO BE PRECIPITATED THEREFROM, AND RECOVERING SAID GERMANIUM DIOXIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |