US3276581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
In line belt type magnetic separator
Assignee: Eriez Manufacturing Co
•
Filing: 1963-11-22
•
Granted: 1966-10-04
•
Expires: 1983-11-22
Abstract
No abstract record available.
Inventors
- 👤 Otto C Mayer
- 👤 Alexander W Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:15
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN COMBINATION, A MAGNET AND TWO MOVABLE CONVEYORS, SAID MAGNET HAVING TWO SPACED POLES DEFINING A GAP THEREBETWEEN, ONE SAID POLE BEING ABOVE ONE SAID CONVEYOR, THE OTHER SAID POLE BEING DISPOSED BELOW THE OTHER OF SAID CONVEYORS,
Claim 2
Dependent Claim
38 words
IN COMBINATION, A MAGNET AND TWO MOVABLE CONVEYORS, SAID MAGNET HAVING TWO SPACED POLES DEFINING A GAP THEREBETWEEN, ONE SAID POLE BEING ABOVE ONE SAID CONVEYOR, THE OTHER SAID POLE BEING DISPOSED BELOW THE OTHER OF SAID CONVEYORS,
References Cited (Backward Citations)
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Cited
US1490792A
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US1565038A
Cited
US2079241A
Cited
US2176784A
Cited
US2702123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |