US2780046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable header for seed harvester with pneumatic conveying means
Assignee: Individual
•
Filing: 1953-10-16
•
Granted: 1957-02-05
•
Expires: 1973-10-16
Abstract
No abstract record available.
Inventors
- 👤 Edwards Delbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:14
CPC Classifications
A; A01; A01D; A01D57/00; A01D57/01; A01D57/10; Y; Y10; Y10S; Y10S56/00; Y10S56/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US689800A
Cited
US859602A
Cited
US1122375A
Cited
US1794658A
Cited
US1900269A
Cited
US2670586A
Cited
US2710516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |