US2437899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction-type grain dryer and cooler
Assignee: International Motors LLC
•
Filing: 1944-06-19
•
Granted: 1948-03-16
•
Expires: 1964-06-19
Abstract
No abstract record available.
Inventors
- 👤 Albert B Welty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:15
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12; F26B17/14; F26B17/1408; F26B17/1416; F26B17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US469849A
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US2245664A
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US2200379A
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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) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |