US2464973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop blower
Assignee: Eagle Manufacturing Co
•
Filing: 1944-11-13
•
Granted: 1949-03-22
•
Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 Freiden William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:15
CPC Classifications
A; A01; A01D; A01D87/00; A01D87/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US540102A
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US576149A
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US2280394A
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Cited
US733289A
Cited
US1020307A
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US1349948A
Cited
US1936173A
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US2324042A
Cited
US2410501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |