US2619767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop dusting unit
Assignee: Individual
•
Filing: 1947-12-20
•
Granted: 1952-12-02
•
Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Eric M Woock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:31
CPC Classifications
A; A01; A01M; A01M9/00; A01M9/0092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE39506C
Cited
US40078A
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US392289A
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US423814A
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US511781A
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US578400A
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US684261A
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US1420601A
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US1724805A
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US1832963A
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US1674391A
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US1851406A
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US1862666A
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GB382012A
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US1957309A
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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) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |