US2639940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orchard spraying machine
Assignee: AIR O FAN PRODUCTS CORP
•
Filing: 1950-10-30
•
Granted: 1953-05-26
•
Expires: 1970-10-30
Abstract
No abstract record available.
Inventors
- 👤 Richard H Fish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:39
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0003; A01M7/0014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1761723A
Cited
US2086055A
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US2226192A
Cited
US2238120A
Cited
US2475449A
Cited
US2538879A
Cited
US2476960A
Cited
US2429374A
Cited
US2604357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |