US3111484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic concentration apparatus
Assignee: Individual
•
Filing: 1958-10-13
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Granted: 1963-11-19
•
Expires: 1978-10-13
Abstract
No abstract record available.
Inventors
- 👤 Cavanagh Daniel Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:17
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/23; B03C1/24; B03C1/253
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
MAGNETIC MATERIAL CONCENTRATING APPARATUS, COMPRISING: (A) A CORE STRUCTURE HAVING A WORKING FACE, (B) MEANS CONNECTABLE WITH A SOURCE OF ELECTRICAL POWER FOR GENERATING A TRAVELLING MAGNETIC FIELD ALONG SAID WORKING FACE IN A PREDETERMINED DIRECTION, AND (C) MEANS FOR MOVING MATERIAL AT AN ANGLE TOWARD SAID WORKING FACE, IN A DIRECTION THE SAME AS THE DIRECTION OF TRAVEL OF SAID MAGNETIC FIELD THEREALONG AND ALONG A PATH OF SUBSTANTIALLY GREATER LENGTH THAN A DIMENSION OF SAID WORKING FACE.
Claim 2
Dependent Claim
79 words
MAGNETIC MATERIAL CONCENTRATING APPARATUS, COMPRISING: (A) A CORE STRUCTURE HAVING A WORKING FACE, (B) MEANS CONNECTABLE WITH A SOURCE OF ELECTRICAL POWER FOR GENERATING A TRAVELLING MAGNETIC FIELD ALONG SAID WORKING FACE IN A PREDETERMINED DIRECTION, AND (C) MEANS FOR MOVING MATERIAL AT AN ANGLE TOWARD SAID WORKING FACE, IN A DIRECTION THE SAME AS THE DIRECTION OF TRAVEL OF SAID MAGNETIC FIELD THEREALONG AND ALONG A PATH OF SUBSTANTIALLY GREATER LENGTH THAN A DIMENSION OF SAID WORKING FACE.
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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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |