US2805770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of beneficiating multicomponent ore
Assignee: International Minerals and Chemical Corp
•
Filing: 1953-09-29
•
Granted: 1957-09-10
•
Expires: 1973-09-29
Abstract
No abstract record available.
Inventors
- 👤 James E Lawver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:41
CPC Classifications
B; B03; B03C; B03C7/00; B03C7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A METHOD OF BENEFICIATING ORE WHICH COMPRISES SUBJECTING A MULTICOMPONENT MINERAL ORE FEED TO AT LEAST ONE ELECTROSTATIC SEPARATION, MIXING WITH THE DESIRED COMPONENT FRACTION PRODUCED BY SAID SEPARATIONS A PREDE-
Claim 2
Independent Claim
31 words
A METHOD OF BENEFICIATING ORE WHICH COMPRISES SUBJECTING A MULTICOMPONENT MINERAL ORE FEED TO AT LEAST ONE ELECTROSTATIC SEPARATION, MIXING WITH THE DESIRED COMPONENT FRACTION PRODUCED BY SAID SEPARATIONS A PREDE-
References Cited (Backward Citations)
US754756A
Cited
US2197865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |