Patent US2575639A successfully refreshed from Google Patents.
US2575639A
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Auger-type feeding device for silage blowers
Assignee: Allis Chalmers Corp
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Filing: 1945-11-30
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Granted: 1951-11-20
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Expires: 1965-11-30
Abstract
No abstract record available.
Inventors
- 👤 Charles J Scranton
- 👤 Brantford G Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:09
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/46; Y; Y10; Y10S; Y10S241/00; Y10S241/605; Y10S366/00; Y10S366/603
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US742591A
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US843806A
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US946475A
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US1189663A
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US1288025A
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US1563101A
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US1794326A
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US1862752A
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US1908882A
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US2324042A
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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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |