US3083830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic concentration of low grade ores containing magnetic ore minerals
Assignee: Individual
•
Filing: 1960-10-28
•
Granted: 1963-04-02
•
Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Alan T Broderick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/12; B03C1/14; B03C1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN A MAGNETIC SEPARATOR OF THE CHARACTER DESCRIBED FOR SEPARATING MINERAL PARTICLES ON THE BASIS OF THEIR RELATIVE CONTENT OF MAGNETIC COMPONENTS, IN COMBINATION, A FEED DISC OF NON-MAGNETIC MATERIAL PROVIDING A FLAT, APPROXIMATELY HORIZONTAL SUPPORTING SURFACE FOR THE MINERAL PARTICLES, AN ARRANGEMENT OF MAGNETS DISPOSED BELOW SAID DISC IN SPACED RELATION BUT IN RELATIVELY CLOSE PROXIMITY
Claim 2
Dependent Claim
57 words
IN A MAGNETIC SEPARATOR OF THE CHARACTER DESCRIBED FOR SEPARATING MINERAL PARTICLES ON THE BASIS OF THEIR RELATIVE CONTENT OF MAGNETIC COMPONENTS, IN COMBINATION, A FEED DISC OF NON-MAGNETIC MATERIAL PROVIDING A FLAT, APPROXIMATELY HORIZONTAL SUPPORTING SURFACE FOR THE MINERAL PARTICLES, AN ARRANGEMENT OF MAGNETS DISPOSED BELOW SAID DISC IN SPACED RELATION BUT IN RELATIVELY CLOSE PROXIMITY
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |