US3017031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic separator
Assignee: Infilco Inc
•
Filing: 1957-09-30
•
Granted: 1962-01-16
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Leslie L Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:55
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE523812A
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US468540A
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US1775155A
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US2410601A
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US2466839A
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US2604207A
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US2597561A
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US2736432A
Cited
US2758715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |