US2528690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paramagnetic coin separator
Assignee: NAT SLUG REJECTORS Inc
•
Filing: 1947-04-26
•
Granted: 1950-11-07
•
Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Robert M Foushee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:53
CPC Classifications
G; G07; G07F; G07F1/00; G07F1/04; G07F1/048; G07D; G07D5/00; G07D5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1993757A
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US2138055A
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US2151823A
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US2181818A
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US2230352A
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US2318410A
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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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |