US2660849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cotton harvester
Assignee: Individual
•
Filing: 1950-08-25
•
Granted: 1953-12-01
•
Expires: 1970-08-25
Abstract
No abstract record available.
Inventors
- 👤 James H Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:55
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/08; A01D46/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123405A
Cited
US2299384A
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US2406058A
Cited
US2445162A
Cited
US2491777A
Cited
US2451130A
Cited
US2532065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |