US2877907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for unloading silos
Assignee: VAN DALE Inc
•
Filing: 1954-08-30
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Granted: 1959-03-17
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Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Floyd E Buschbom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0326; B65G2814/0328; B65G2814/0329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020307A
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US1556718A
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US2136214A
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US2445056A
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US2595333A
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US2651438A
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US2615594A
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US2671696A
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US2678241A
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US2677474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |