US3329265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation of mica
Assignee: Individual
•
Filing: 1964-08-18
•
Granted: 1967-07-04
•
Expires: 1984-08-18
Abstract
No abstract record available.
Inventors
- 👤 James S Browning
- 👤 Ralph B Adair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:25
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/20; B; B03; B03D; B03D1/00; B03D1/001; B03D1/002; B03D1/004; B03D1/008; B03D1/01; B03D1/016; B03D1/018; B03D2201/00; B03D2201/005; B03D2201/06; B03D2203/00; B03D2203/02; B03D2203/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR BENEFICIATING MICA ORE WHEREIN THE MICA CONTENT OF SAID ORE IS A MEMBER OF THE GROUP CONSISTING OF PREDOMINANTLY MUSCOVITE MICA AND MIXTURES OF MUSCOVITE MICA AND BIOTITE MICA BY SELECTIVE FLOTATION OF MUSCOVITE MICA COMPRISING ADDING TO AN AQUEOUS PULP OF THE ORE IN A FLOTATION CELL (1) A DEPRESSANT FOR THE GANGUE MATERIALS IN THE ORE COMPRISING AN ALKALINE INORGANIC REAGENT AND A LIGNIN SULFONATE AND (2) A COLLECTOR FOR THE MICA COMPRISING A COMBINATION OF A CATIONIC REAGENT AND AN ANIONIC REAGENT SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS, ROSIN ACIDS AND SALTS THEREOF AND THEN FROTH FLOATING THE DESIRED MICA.
Claim 2
Dependent Claim
108 words
A PROCESS FOR BENEFICIATING MICA ORE WHEREIN THE MICA CONTENT OF SAID ORE IS A MEMBER OF THE GROUP CONSISTING OF PREDOMINANTLY MUSCOVITE MICA AND MIXTURES OF MUSCOVITE MICA AND BIOTITE MICA BY SELECTIVE FLOTATION OF MUSCOVITE MICA COMPRISING ADDING TO AN AQUEOUS PULP OF THE ORE IN A FLOTATION CELL (1) A DEPRESSANT FOR THE GANGUE MATERIALS IN THE ORE COMPRISING AN ALKALINE INORGANIC REAGENT AND A LIGNIN SULFONATE AND (2) A COLLECTOR FOR THE MICA COMPRISING A COMBINATION OF A CATIONIC REAGENT AND AN ANIONIC REAGENT SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS, ROSIN ACIDS AND SALTS THEREOF AND THEN FROTH FLOATING THE DESIRED MICA.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |