Patent US3937088A successfully refreshed from Google Patents.
Patent US2939568A successfully refreshed from Google Patents.
US2939568A
Expired / Lapsed
US
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Conveyor with magnetic pipe separators thereon
Assignee: Eriez Manufacturing Co
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Filing: 1956-10-15
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Granted: 1960-06-07
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Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Arlo F Israelson
- 👤 Franklin E Parke
- 👤 Rossi Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/08
Claims Analysis
Total Claims: 0
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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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |