US3085875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of manganese ores
Assignee: Howe Sound Co
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Filing: 1960-01-04
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Granted: 1963-04-16
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Expires: 1980-01-04
Abstract
No abstract record available.
Inventors
- 👤 Sidney J Mccarroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:51
CPC Classifications
C; C22; C22B; C22B47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF EXTRACTING MANGANESE FROM NATURALLY OCCURRING ORE CONTAINING SAME IN A VALENE STATE HREATER THAN TWO, WHICH COMPRISES DIGESTING SAID ORE AT SUPERATOMOSPHERIC TEMPERATURE OF UP TO ABOUT 180*F. IN A DILUTE AQUEOUS SOLUTION OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULPHURIC ACID AND HYDROCHLORIC ACID, AND IN THE PRESENCE OF A REDUCING SUGAR, CONTINUING SAID DIGESTION UNTIL A SUBSTANTIAL AMOUNT OF THE MANGANESE IN THE ORE HAS BEEN REDUCED AND DISSOLVED AND THEREAFTER FILTERING THE RESULTING SOLUTION FROM THE UNDISSOLVED RESIDUAL ORE.
Claim 2
Independent Claim
87 words
THE METHOD OF EXTRACTING MANGANESE FROM NATURALLY OCCURRING ORE CONTAINING SAME IN A VALENE STATE HREATER THAN TWO, WHICH COMPRISES DIGESTING SAID ORE AT SUPERATOMOSPHERIC TEMPERATURE OF UP TO ABOUT 180*F. IN A DILUTE AQUEOUS SOLUTION OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SULPHURIC ACID AND HYDROCHLORIC ACID, AND IN THE PRESENCE OF A REDUCING SUGAR, CONTINUING SAID DIGESTION UNTIL A SUBSTANTIAL AMOUNT OF THE MANGANESE IN THE ORE HAS BEEN REDUCED AND DISSOLVED AND THEREAFTER FILTERING THE RESULTING SOLUTION FROM THE UNDISSOLVED RESIDUAL ORE.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |