US2804350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid current conveyor system for sawdust-like material
Assignee: VASTINE ENGINEERING Co IN
•
Filing: 1946-08-07
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Granted: 1957-08-27
•
Expires: 1966-08-07
Abstract
No abstract record available.
Inventors
- 👤 Ray P Vastine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:49
CPC Classifications
B; B65; B65G; B65G53/00; F; F23; F23G; F23G5/00; F23G5/44; F23G5/442; F23G5/444; F23K; F23K3/00; B65G2812/00; B65G2812/16; B65G2812/1608; B65G2812/1675; F23K2203/00; F23K2203/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1013379A
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US603077A
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US603076A
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US300990A
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US1468966A
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US870230A
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US1181338A
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US1128043A
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US1203703A
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US1837635A
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US2172317A
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US2212125A
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US2311773A
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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) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |