US2645991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain drier
Assignee: Individual
•
Filing: 1949-02-12
•
Granted: 1953-07-21
•
Expires: 1969-02-12
Abstract
No abstract record available.
Inventors
- 👤 Ota O Hobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:09
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/74; B65D88/742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US113219A
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US1829084A
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US846211A
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US842528A
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US989137A
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US1493391A
Cited
FR614965A
Cited
GB301531A
Cited
US1995551A
Cited
US2027268A
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US2128096A
Cited
US2299299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |