Patent US2513963A successfully refreshed from Google Patents.
US2513963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for eliminating dust from grain
Assignee: Individual
•
Filing: 1947-06-26
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Granted: 1950-07-04
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Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Roy I Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:33
CPC Classifications
B; B07; B07B; B07B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1659088A
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US844033A
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US1630780A
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US1766941A
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US1827326A
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US1963375A
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US2217538A
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US2299623A
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US2415503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |